Standard 140 specifies a method of test for evaluating thetechnical capabilities and applicability of software used in calculating thethermal performance of buildings and their HVAC systems. These test procedurescan be used to identify and diagnose predictive differences from building performancesimulation software that may be caused by algorithmic differences, modelinglimitations, faulty coding, inadequate documentation, or input errors; theprocedures can also be used to evaluate the acceptability of software. The current set of tests focuses on building thermalenvelope and fabric loads and HVAC equipment performance, and includes 1. comparative tests, in which a program’s results may becompared to a different version of itself or to the results of other programs,and 2. analytical verification tests, in which a program’sresults may be compared to analytical, quasi-analytical, or verified numericalmodel solutions. This procedure tests software over a broad range ofparametric interactions and for a number of different output types, thusminimizing the concealment of algorithmic differences by compensating errors.Different building performance simulation programs, representing differentdegrees of modeling complexity, can be tested. However, some of the tests maybe incompatible with some building performance simulation programs. The revised 2020 edition of Standard 140 includes all thetest cases of Standard 140-2017 and updates the building thermal fabric loadtests of Sections 5.2.1, 5.2.2, 5.2.3, and related sections.<\/p>\n
| PDF Pages<\/th>\n | PDF Title<\/th>\n<\/tr>\n | ||||||
|---|---|---|---|---|---|---|---|
| 1<\/td>\n | ANSI\/ASHRAE Standard 140-2020 <\/td>\n<\/tr>\n | ||||||
| 5<\/td>\n | FOREWORD <\/td>\n<\/tr>\n | ||||||
| 11<\/td>\n | 1. PURPOSE 2. SCOPE 3. DEFINITIONS, ABBREVIATIONS, AND ACRONYMS 3.1 Terms Defined for This Standard <\/td>\n<\/tr>\n | ||||||
| 18<\/td>\n | 3.2 Abbreviations and Acronyms Used in this Standard <\/td>\n<\/tr>\n | ||||||
| 23<\/td>\n | 3.3 Subscripts <\/td>\n<\/tr>\n | ||||||
| 24<\/td>\n | 4. METHODS OF TESTING 4.1 General. The test procedures shall be applied as specified in Normative Sections 5 through 8. Content of the normative sections and organization of the test procedures are described in Sections 4.1.1 and 4.1.2 and in greater detail in Informative… 4.1.1 Class I Test Cases. The Class I test cases are detailed diagnostic tests for simulation software capable of hourly or subhourly simulation time steps. The requirements for these test cases are specified in Section 5. Section 6 includes the outp… 4.1.2 Class II Test Cases. The Class II test cases are for all types of building load calculation methods regardless of time-step granularity. The requirements for these test cases are specified in Section 7. Section 8 includes the output requirement… 4.1.3 Normative Annexes. The normative annexes to this standard are considered to be integral parts of the mandatory requirements of this standard, which, for reasons of convenience, are placed apart from all other normative elements. 4.1.4 Informative Annexes. The informative annexes and informative notes located within this standard contain additional information and are not mandatory or part of this standard. 4.2 (Informative) Applicability of Test Method. The method of test is provided for analyzing and diagnosing building energy simulation software using software-to-software, software-to- analytical-solution, software-to-quasi-analytical-solution, and s… 4.3 (Informative) Organization of Test Cases. The specifications for determining test case configurations and input values are provided on a case-by-case basis in Section 5 and Section 7. The test cases are divided into two separate test classes to s… <\/td>\n<\/tr>\n | ||||||
| 25<\/td>\n | 4.3.1 Class I Test Procedures <\/td>\n<\/tr>\n | ||||||
| 28<\/td>\n | 4.3.2 Class II Test Procedures 4.4 (Informative) Comparing Output to Other Results. For Class I test procedures, <\/td>\n<\/tr>\n | ||||||
| 29<\/td>\n | 4.4.1 Criteria for Determining Agreement between Results. The requirements of the normative sections of Standard 140 ensure that users follow the specified method of test and that test results are provided as specified. There are no formal criteria f… 4.4.2 Diagnostic Logic for Determining Causes of Differences among Results. To help the user identify what algorithm in the tested program is causing specific differences between programs, diagnostic flow charts are provided as Informative Annex B9. <\/td>\n<\/tr>\n | ||||||
| 30<\/td>\n | 5. CLASS I TEST PROCEDURES 5.1 Modeling Approach. This modeling approach shall apply to all of the test cases presented in Section 5. 5.1.1 Time Convention. All references to \u201ctime\u201d in this specification are to local standard time and assume that hour 1 = the interval from midnight to 1 a.m. Daylight savings time or holidays shall not be used for scheduling. 5.1.2 Geometry Convention. If the program being tested includes the thickness of walls in a three-dimensional (3D) definition of the building geometry, then wall, roof, and floor thicknesses shall be defined such that the interior air volume of the b… 5.1.3 Nonapplicable Inputs. If the specification includes input values that do not apply to the input structure of the program being tested, disregard the nonapplicable inputs and continue. 5.1.4 Consistent Modeling Methods. Where options exist within a simulation program for modeling a specific thermal behavior, consistent modeling methods shall be used for all cases. The option that is used shall be documented in the Standard Output R… 5.1.5 Equivalent Modeling Methods. Where a program or specific model within a program does not allow direct input of specified values, or where input of specified values causes instabilities in a program\u2019s calculations, modelers shall develop equiv… 5.1.6 Use of Nonspecified Inputs. Use of nonspecified inputs shall be permitted only for the following specified sections relating to the following topics: <\/td>\n<\/tr>\n | ||||||
| 31<\/td>\n | 5.1.7 Simulation Initialization and Preconditioning 5.1.8 Simulation Duration 5.1.9 Rules for Modifying Simulation Programs or Simulation Inputs. Modifications to simulation programs or simulation inputs shall have a mathematical, physical, or logical basis and shall be applied consistently across tests. Arbitrary modification… 5.2 Input Specifications for Building Thermal Envelope and Fabric Load Tests 5.2.1 Case 600: Base Case. Begin with Case 600. Case 600 shall be modeled as specified in this section and its subsections. <\/td>\n<\/tr>\n | ||||||
| 43<\/td>\n | 5.2.2 Basic Tests. The basic tests shall be modeled as specified in this section and its subsections. The basic tests include Cases 610 through 995 and 600FF through 980FF. <\/td>\n<\/tr>\n | ||||||
| 66<\/td>\n | 5.2.3 In-Depth Tests <\/td>\n<\/tr>\n | ||||||
| 79<\/td>\n | 5.2.4 Ground-Coupled Slab-on-Grade Analytical Verification Tests <\/td>\n<\/tr>\n | ||||||
| 96<\/td>\n | 5.3 Input Specification for Space-Cooling Equipment Performance Tests 5.3.1 Case CE100: Base-Case Building and Mechanical System for Analytical Verification Tests. Case CE100 shall be the first case modeled in Section 5.3. <\/td>\n<\/tr>\n | ||||||
| 113<\/td>\n | 5.3.2 Space-Cooling Equipment Performance Parameter Variation Analytical Verification Tests <\/td>\n<\/tr>\n | ||||||
| 116<\/td>\n | 5.3.3 Case CE300: Comparative Test Base-Case Building and Mechanical System. Case CE300 shall be modeled as detailed in this section and its subsections. <\/td>\n<\/tr>\n | ||||||
| 132<\/td>\n | 5.3.4 Space-Cooling Equipment Performance Comparative Tests. Sequential variations shall be modeled as specified in the following subsections. <\/td>\n<\/tr>\n | ||||||
| 141<\/td>\n | 5.4 Input Specification for Space-Heating Equipment Performance Tests. Cases HE100 through HE230 shall be modeled as specified in this section and its subsections. 5.4.1 Case HE100: Base-Case Building and Mechanical Systems. Case HE100 shall be the first case modeled as detailed in this section and its subsections. <\/td>\n<\/tr>\n | ||||||
| 146<\/td>\n | 5.4.2 Space-Heating Equipment Performance Analytical Verification Tests <\/td>\n<\/tr>\n | ||||||
| 147<\/td>\n | 5.4.3 Space-Heating Equipment Performance Comparative Tests. These tests shall be modeled as specified in the following subsections. <\/td>\n<\/tr>\n | ||||||
| 148<\/td>\n | 5.5 Input Specification for Air-Side HVAC Equipment Analytical Verification Tests 5.5.1 Four-Pipe Fan-Coil (FC) System Cases (AE100 Series). The ability to model a four- pipe fan-coil (FC) system shall be tested as described in this section. <\/td>\n<\/tr>\n | ||||||
| 157<\/td>\n | 5.5.2 Single-Zone (SZ) Air System Cases (AE200 Series). The ability to model a single- zone (SZ) air system shall be tested as described in this section. <\/td>\n<\/tr>\n | ||||||
| 169<\/td>\n | 5.5.3 Constant-Volume Terminal Reheat (CV) System Cases (AE300 Series). The ability to model a CV terminal reheat air system serving multiple zones shall be tested as described in this section. <\/td>\n<\/tr>\n | ||||||
| 183<\/td>\n | 5.5.4 Variable-Air-Volume Terminal Reheat (VAV) System Cases (AE400 Series). The ability to model a variable-air-volume (VAV) air system with zone reheat serving multiple zones shall be tested as described in this section. <\/td>\n<\/tr>\n | ||||||
| 194<\/td>\n | 6. CLASS I OUTPUT REQUIREMENTS 6.1 Reporting Results 6.1.1 Standard Output Reports. The standard output reports included on the accompanying electronic media shall be used. Instructions regarding these reports are included in Normative Annex A2. Information required for this report includes the following: 6.1.2 Simulation Input Files. All supporting data required for generating results with the tested software shall be saved, including the following: 6.1.3 Omitted Test Cases. If a program being tested omits a test case, the modeler shall provide an explanation of the omission using the modeler report template provided in Normative Annex A2. 6.1.4 Discussion of Anomalous Results. Explanation of anomalous test results using the modeler report template provided in Normative Annex A2 shall be permitted but is not required. 6.2 Output Requirements for Building Thermal Envelope and Fabric Load and Ground- Coupled Slab-on-Grade Tests of Section 5.2. Required output shall be as specified in the sections below. <\/td>\n<\/tr>\n | ||||||
| 195<\/td>\n | 6.2.1 Output Requirements for Building Thermal Envelope and Fabric Load Tests of Sections 5.2.1, 5.2.2, and 5.2.3 <\/td>\n<\/tr>\n | ||||||
| 197<\/td>\n | 6.2.2 Output for Ground-Coupled Slab-on-Grade Analytical Verification Tests of Section 5.2.4 <\/td>\n<\/tr>\n | ||||||
| 200<\/td>\n | 6.3 Output Requirements for Space-Cooling Equipment Performance Tests of Section 5.3. Required output shall be as specified in the sections below. See Section 3 for definitions of terms used below. 6.3.1 Analytical Verification Tests of Sections 5.3.1 and 5.3.2. The outputs listed immediately below shall include loads or consumptions (as appropriate) for the entire month of February (the second month in the weather data sets). <\/td>\n<\/tr>\n | ||||||
| 201<\/td>\n | 6.3.2 Comparative Tests of Sections 5.3.3 and 5.3.4 <\/td>\n<\/tr>\n | ||||||
| 203<\/td>\n | 6.4 Output Requirements for Space-Heating Equipment Performance Tests of Section 5.4. The values listed below shall be provided and entered into the appropriate standard output report; see Sec5-4out.xls included with the accompanying electronic media… <\/td>\n<\/tr>\n | ||||||
| 204<\/td>\n | 6.4.1 All Cases HE100 through HE170, HE210 through HE230 6.4.2 Cases with Fan: HE150 through HE170 and HE210 through HE230 6.4.3 Cases with More Complex Controls: HE210 through HE230 6.5 Output Requirements for Air-Side HVAC Equipment Performance Tests of Section 5.5. Outputs that are not direct program outputs shall be described in the output spreadsheet and modeler report using S140outNotes.txt (under report Block B, Alternativ… 6.5.1 Output Requirements for AE100 Series Cases. Output results specified in this section shall be reported in the output spreadsheet (Sec5-5out.XLSX) provided with the accompanying electronic media, using the nomenclature and units specified here. … <\/td>\n<\/tr>\n | ||||||
| 205<\/td>\n | 6.5.2 Output Requirements for AE200 Series Cases. Output results specified in this section shall be reported in the output spreadsheet (Sec5-5out.XLSX) provided with the accompanying electronic media, using the nomenclature and units specified here. … 6.5.3 Output Requirements for AE300 Series Cases. Output results specified in this section shall be reported in the output spreadsheet (Sec5-5out.XLSX) provided with the accompanying electronic media, using the nomenclature and units specified here. … <\/td>\n<\/tr>\n | ||||||
| 206<\/td>\n | 6.5.4 Output Requirements for AE400 Series Cases. Output results specified in this section shall be reported in the output spreadsheet (Sec5-5out.XLSX) provided with the accompanying electronic media, using the nomenclature and units specified here. … <\/td>\n<\/tr>\n | ||||||
| 207<\/td>\n | 7. CLASS II TEST PROCEDURES 7.1 Modeling Approach. This modeling approach shall apply to all the test cases presented in Section 7.2. 7.1.1 Time Convention. All references to time in this specification are to local standard time and assume that hour 1 = the interval from midnight to 1 a.m. Daylight savings time or holidays shall not be used for scheduling. 7.1.2 Geometry Convention. If the program being tested includes the thickness of walls in a three-dimensional definition of the building geometry, then wall, roof, and floor thicknesses shall be defined such that the interior air volume of the buildi… 7.1.3 Nonapplicable Inputs. In some instances, the specification will include input values that do not apply to the input structure of the program being tested. When this occurs, disregard the nonapplicable inputs and continue. 7.1.4 Consistent Modeling Methods. Where options exist within a simulation program for modeling a specific physical behavior, consistent modeling methods shall be used for all cases. The option used shall be documented in the Standard Output Report (… 7.1.5 Equivalent Modeling Methods. Where a program or\u00a0 specific model within a program\u00a0 does not allow direct input of specified values, or where input of specified values causes instabilities in a program\u2019s calculations, modelers shall develop e… 7.1.6 Simulation Initialization and Preconditioning. If the program being tested allows, the simulation initialization process shall begin with zone air conditions that equal the outside air conditions. If the program being tested allows for precondi… 7.1.7 Simulation Duration Results for the tests of Section 7.2 shall be taken either from full annual simulations or from seasonal simulations as allowed by the program being tested. 7.1.8 Rules for Modifying Simulation Programs or Simulation Inputs. Modifications to simulation programs or simulation inputs shall have a mathematical, physical, or logical basis and shall be applied consistently across tests. Arbitrary modification… <\/td>\n<\/tr>\n | ||||||
| 208<\/td>\n | 7.1.9 Example Acceptance-Range Criteria. Use of informative example acceptance-range criteria provided in Informative Annex B22 shall be permitted but is not mandatory. Where application of the criteria leads to identification of a disagreeing result… 7.2 Input Specifications. The test cases shall be modeled as specified in this section. 7.2.1 The Base-Case Building (Case L100A). Begin with Case L100A. Case L100A shall be modeled as detailed in this section and its subsections. <\/td>\n<\/tr>\n | ||||||
| 212<\/td>\n | 7.2.2 Tier 1 Test Cases. The Tier 1 test cases shall be modeled exactly as the designated base-case model with revisions as specified in this section. The designated base-case model shall be Case L100A except for the following: <\/td>\n<\/tr>\n | ||||||
| 218<\/td>\n | 7.2.3 Tier 2 Test Cases. Tier 2 test cases shall be modeled exactly as the designated base- case model except as specified in this section. Case L165A shall be based on Tier 1 Case L160A, and Case P100A shall be based on Tier 1 Case L120A. Case P100A… <\/td>\n<\/tr>\n | ||||||
| 286<\/td>\n | 8. CLASS II OUTPUT REQUIREMENTS 8.1 Reporting Results 8.1.1 Standard Output Reports. The standard output reports included on the accompanying electronic media shall be used. Instructions regarding these reports are included in Normative Annex A2. Information required for this report includes the following: 8.1.2 Simulation Input Files. All supporting data required for generating results with the tested software shall be saved, including the following: 8.1.3 Omitted Test Cases. If a program being tested omits a test case, the modeler shall provide an explanation using the modeler report template provided in Normative Annex A2. 8.1.4 Discussion of Anomalous Results. Explanation of anomalous test results using the modeler report template provided in Normative Annex A2 shall be permitted but is not required. 8.2 Output Requirements for Building Thermal Envelope and Fabric Load Tests of Section 7.2. All results shall be entered into the appropriate standard output report (see Normative Annex A2) as specified below. 8.2.1 Tier 1 Tests. For the Tier 1 tests, generate output for comparison to the example results as shown in Table 8-1. Seasonal results shall be for heating and cooling seasons for the entire year or some other reasonable length as defined by the too… 8.2.2 Tier 2 Tests. For the Tier 2 tests, generate output for comparison to the example results as shown in Table 8-2. Seasonal results shall be for heating and cooling seasons for the entire year or some other reasonable length as defined by the too… <\/td>\n<\/tr>\n | ||||||
| 288<\/td>\n | NORMATIVE ANNEX A1: WEATHER DATA A1.1 Weather Data for Tests of Section 5.2 A1.1.1 Weather Data for Building Thermal Envelope and Fabric Load Tests of Sections 5.2.1, 5.2.2, and 5.2.3 A1.1.2 Weather Data for Ground-Coupled Slab-on-Grade Analytical Verification Tests of Section 5.2.4. The full-year weather data in the electronic media provided with this standard shall be used for performing the tests of Section 5.2.4 as assigned in… <\/td>\n<\/tr>\n | ||||||
| 289<\/td>\n | A1.2 Weather Data for Space-Cooling and Space-Heating Equipment Performance Tests A1.2.1 Space-Cooling Equipment Analytical Verification Test Weather Data. The weather data listed in Table A1-4 shall be used as specified in Sections 5.3.1 and 5.3.2. Ambient dry-bulb and dew-point temperatures are constant in these weather files; c… A1.2.2 Space-Cooling Equipment Comparative Test Weather Data. The full-year weather data file CE300.TM2 provided with the accompanying electronic media shall be used for performing the tests specified in Sections 5.3.3 and 5.3.4. Site and weather cha… A1.2.3 Space-Heating Equipment Performance Test Weather Data. Weather data listed in Table A1-8 shall be used as specified in Section 5.4. These data are presented in WYEC2 format. See Section A1.7 for a detailed description of the WYEC2 format. Site… <\/td>\n<\/tr>\n | ||||||
| 290<\/td>\n | A1.3 Weather Data for Air-Side HVAC Equipment Analytical Verification Tests. For programs that do not allow direct entry of ambient conditions as specified in Section 5.5, the full- year weather data on the accompanying electronic media shall be used… A1.4 Weather Data for Section 7 Tests. Full-year TMY weather data listed in Table A1-12 shall be used as specified in Section 7.2. Site and weather characteristics are summarized in Tables A1-13 and A1-14. See Section A1.5 for details about TMY weath… A1.5 TMY Weather Data Format. For those programs that do not have Typical Meteorological Year (TMY) weather processors, TMY weather data file format is provided in Table A1-15. A1.6 TMY2 Weather Data Format. TMY2 weather data file format is described below. A1.6.1 File Header. The first record of each file is the file header that describes the station. The file header contains the WBAN number, city, state, time zone, latitude, longitude, and elevation. The field positions and definitions of these header… <\/td>\n<\/tr>\n | ||||||
| 291<\/td>\n | A1.6.2 Hourly Records. Following the file header, 8760 hourly data records provide one year of solar radiation, illuminance, and meteorological data, along with their source and uncertainty flags. Table A1-17 provides field positions, element definit… A1.7 WYEC2 Weather Data Format. WYEC2 weather data file format is described below. A1.7.1 Weather files in WYEC2 format consist of 8760 identical fixed-format records (8784 records for leap years), one for each hour of each day of the year. Each record is 116 characters (plus two for CR\/LF) in length and is organized according to T… A1.7.2 All WYEC2 values are for Local Standard Time. Irradiance and illuminance fields contain data integrated over the hour. Meteorological fields contain observations made at the end of the hour. A1.8 TMY3 Weather Data Format. TMY3 weather data are provided in comma separated value (CSV) file format. The TMY3 data format has two file headers followed by 8,760 lines of data, each with 68 data fields, as described below. A1.8.1 File Headers. The first row of each file is the file header that describes the station. This row contains the WBAN number, city\/location, state, time zone, latitude, longitude, and elevation. The field positions and definitions of these header… A1.8.2 Hourly Records. Following the file headers, 8,760 rows of hourly data records provide one year of solar radiation, illuminance, and meteorological data, along with their source and uncertainty flags, as described in Table A1-21. Tables A1-22 t… <\/td>\n<\/tr>\n | ||||||
| 315<\/td>\n | NORMATIVE ANNEX A2: STANDARD OUTPUT REPORTS <\/td>\n<\/tr>\n | ||||||
| 322<\/td>\n | INFORMATIVE ANNEX B1: TABULAR SUMMARY OF TEST CASES <\/td>\n<\/tr>\n | ||||||
| 338<\/td>\n | INFORMATIVE ANNEX B2: ABOUT TYPICAL METEOROLOGICAL YEAR (TMY) WEATHER DATA <\/td>\n<\/tr>\n | ||||||
| 339<\/td>\n | INFORMATIVE ANNEX B3: INFILTRATION AND FAN ADJUSTMENTS FOR ALTITUDE B3.1 Adjustments for Test Cases of Sections 5.2.1, 5.2.2, and 5.2.3. For sea-level standard temperature and pressure conditions of 15\u00b0C and 101.325 kPa (ASHRAE 2017 B-101, p. 1.1), air density = 1.2255 kg\/m3 (ASHRAE 2012 B-120). B3.2 Adjustments for Section 7.2 Test Cases. The decline in air density with altitude may be expressed according to the following exponential curve fit: <\/td>\n<\/tr>\n | ||||||
| 340<\/td>\n | B3.3 Comparison of Section B3.2 with ASHRAE Handbook\u2014Fundamentals. The altitude correction in Section B3.2 was created by fitting an exponential curve to data in the 1993 ASHRAE Handbook\u2014Fundamentals, Chapter 6, Table 1 B-26. Beginning in 2001, A… <\/td>\n<\/tr>\n | ||||||
| 341<\/td>\n | INFORMATIVE ANNEX B4: ALTERNATIVE CONSTANT CONVECTIVE-ONLY AND COMBINED RADIATIVE AND CONVECTIVE SURFACE COEFFICIENTS B4.1 Alternative Constant Convective and Combined (Convective and Radiative) Surface Heat Transfer Coefficients for Test Cases of Sections 5.2.1, 5.2.2, and 5.2.3. Alternative constant convective and combined (convective and radiative) surface heat t… B4.2 (Reserved for Future Use) B4.3 Alternative Constant Exterior Surface Coefficients for Section 7.2 Test Cases. Some simulation programs (e.g., EnergyPlus, using its option for simple outside surface conductance B-20,B-114) allow calculation of the exterior combined radiative a… <\/td>\n<\/tr>\n | ||||||
| 344<\/td>\n | INFORMATIVE ANNEX B5: INFRARED PORTION OF FILM COEFFICIENTS B5.1 General Equation. The infrared portion of film coefficients is based on the linearized gray-body radiation equation B-97: B5.2 (Reserved for Future Use) B5.3 Tabulation for Section 7.2 Test Cases. For the test cases of Section 7.2, the parameters of Equation B5-1 are as follows: <\/td>\n<\/tr>\n | ||||||
| 346<\/td>\n | INFORMATIVE ANNEX B6: WINDOW THERMAL AND OPTICAL PROPERTY CALCULATIONS B6.1 Window Modeling with WINDOW 7. WINDOW 7.4.8 B-116,B-122 was applied for calculating thermal and optical properties shown in the following tables: B6.1.1 Abbreviations for Tables B6-1, B6-2, and B6-3. Abbreviations used in Tables B6-1, B6-2, and B6-3 are primarily excerpted from the WINDOW 4.1 user\u2019s manualB-25. The definition documentation does not appear to be updated for WINDOW 6B-122, or … <\/td>\n<\/tr>\n | ||||||
| 350<\/td>\n | B6.2 Alternate Calculation of Optical Properties Based on Index of Refraction and Extinction Coefficient. Table B6-4 provides clear glazing optical property calculations applying calculated transmittances due to reflectance and absorptance losses (Tr… <\/td>\n<\/tr>\n | ||||||
| 352<\/td>\n | B6.3 Comparison of Two Algorithms for Calculating Window Transmittance. Table B6-5 compares angle-dependent solar transmittance calculated using the equations of Section B6.2 to the same properties calculated by WINDOW 7 (see Section B6.1) for the cl… <\/td>\n<\/tr>\n | ||||||
| 354<\/td>\n | INFORMATIVE ANNEX B7: DETAILED CALCULATION OF ALTERNATIVE CONSTANT INTERIOR SOLAR DISTRIBUTION FRACTIONS <\/td>\n<\/tr>\n | ||||||
| 357<\/td>\n | B7.1 Resulting Alternative Constant Solar Distribution Fractions for the Cases of Sections 5.2.1, 5.2.2, and 5.2.3. Table B7-1 summarizes the interior solar distribution fractions, using the above formulation, for the various window configurations an… B7.2 Solar Fraction Approximation Algorithm for Section 7.2 Test Cases. The method used to determine solar lost for the Section 7.2 tests is described with the introductory text of this annex. The assumptions there are useful for the calculation of s… <\/td>\n<\/tr>\n | ||||||
| 359<\/td>\n | INFORMATIVE ANNEX B8: EXAMPLE RESULTS FOR BUILDING THERMAL ENVELOPE AND FABRIC LOAD AND GROUND-COUPLED SLAB-ON-GRADE TESTS OF SECTION 5.2 B8.1 Building Thermal Envelope and Fabric Load Tests of Sections 5.2.1, 5.2.2, and 5.2.3. Example results are included in the file RESULTS5-2A.PDF in the electronic media accompanying this standard. Nomenclature used in the tables and figures are def… B8.1.1 Nomenclature for RESULTS5-2A.PDF and RESULTS5-2A.XLSX. Abbreviations and acronyms used in the results tables and figures are defined below. Results are grouped by case numbers; e.g., \u201c395\u201d is Case 395 (Section 5.2.3.16). Sensitivity result… <\/td>\n<\/tr>\n | ||||||
| 361<\/td>\n | B8.1.2 Listing of Tables and Figures. Tables B8-1 and B8-2 list example results tables and figures, respectively, included in the RESULTS5-2A.PDF and RESULTS5-2A.XLSX files. The RESULTS5-2A.PDF file presents these tables and figures sequentially. The… B8.2 Ground-Coupled Slab-on-Grade Analytical Verification Tests of Section 5.2.4. Example results for the ground-coupled slab-on-grade tests of Section 5.2.4 are included with the file RESULTS5-2B.XLSX in the electronic media provided with this stand… B8.2.1 Importance of Analytical Solution and Verified Numerical Model Results. The ground-coupled slab-on-grade test cases of Section 5.2.4 use the results of verified numerical models for ground-coupled heat transfer as a secondary mathematical trut… <\/td>\n<\/tr>\n | ||||||
| 366<\/td>\n | B8.2.2 Example Simulation Results. The simulation programs used to generate example results for the ground-coupled slab-on-grade tests of Section 5.2.4 are described in Informative Annex B11, Section B11.2.2. B8.2.3 Nomenclature for RESULTS5-2B.xlsx. Results are shown using case designators; e.g., \u201cGC30b\u201d is Case GC30b (see Section 5.2.4.1.1). Sensitivity results are listed using two case numbers separated by a minus sign; e.g., \u201cGC60b \u2013 GC30b\u201d … <\/td>\n<\/tr>\n | ||||||
| 368<\/td>\n | B8.2.4 Example Results. Tables B8-3 and B8-4 list example results tables and figures included in the RESULTS5-2B.PDF and RESULTS5-2B.XLSX files. The RESULTS5- 2B.PDF file represents these tables and figures sequentially. The sheet and cell range colu… <\/td>\n<\/tr>\n | ||||||
| 371<\/td>\n | INFORMATIVE ANNEX B9: DIAGNOSING THE RESULTS USING THE FLOW DIAGRAMS B9.1 General Description. Figures B9-1 through B9-10 contain a set of flow diagrams that serve as a guide for diagnosing the cause of disagreeing results that may arise from using this method of test. These flow diagrams list the features being teste… B9.2 Comparing Tested Software Results to Other Example Results B9.2.1 Example results are either results presented in Informative Annexes B8 and B16 or other results that were generated using this standard method of test. B9.2.2 In this annex we provide no formal criteria for when results agree or disagree. Determination of when results agree or disagree is left to the user. In making this determination, the user should consider the following: B9.2.3 Check the program being tested for agreement (see Section B9.2.2) with example results for both the absolute outputs and the sensitivity (or delta) outputs. For example, when comparing to the example results shown in Informative Annex B8 for C… B9.2.4 Compare all available output types specified for each case that can be produced by the program being tested, as described in Section 6. A disagreement with any one of the output types may be cause for concern. B9.2.5 There are some cases where it is possible to proceed even if disagreements were uncovered in the previous case. For example, using Figure B9-1, in Case 610, inability to model a shading overhang would not affect the usefulness of the program f… B9.3 If Tested Software Results Disagree with Example Results. If the tested program shows disagreement (as defined above in Section B9.2.2) with the example results, then recheck the inputs against the specified values. Use the diagnostic logic flow… <\/td>\n<\/tr>\n | ||||||
| 373<\/td>\n | B9.4 Diagnostic Logic Flow Diagrams for Building Thermal Envelope and Fabric Load and Ground-Coupled Slab-on-Grade Tests (Section 5.2) B9.4.1 Low-Mass and High-Mass Basic Tests. The first flow diagram (Figure B9-1) begins with the base building (Case 600). It is very important to have confidence in your Case 600 results before proceeding to the other cases. If output from the tested… B9.4.2 In-Depth Tests. These tests provide detailed diagnostic capability. The \u201cin-depth test\u201d flow diagram (Figure B9-2) indicates two possible diagnostic paths, A1 through A11 or B1 through B10; also run B11, B12, and B13 in addition to A1 thro… B9.4.3 Mass Interaction Tests. Further diagnostic information can be obtained regarding thermal mass interactions using the diagnostic logic flow diagram of Figure B9-4. When disagreement among results occurs, this diagram sometimes returns to the lo… B9.4.4 Ground-Coupled Slab-on-Grade Analytical Verification Tests <\/td>\n<\/tr>\n | ||||||
| 377<\/td>\n | B9.5 Diagnostic Logic Flow Diagram for Space-Cooling Equipment Performance Tests (Section 5.3). Flow diagrams are included here for Cases CE100 through CE200 (Figure B9-8) and Cases CE300 through CE545 (Figures B9-9 and B9-10). B9.5.1 Analytical Verification Tests, Cases CE100 through CE200 <\/td>\n<\/tr>\n | ||||||
| 379<\/td>\n | B9.5.2 Comparative Tests, Cases CE300 through CE545. After successfully completing cases CE100 through CE200, go on to cases CE300 through CE545 (see Sections 5.3.3 and 5.3.4). These cases test additional model features under more dynamic (hourly var… <\/td>\n<\/tr>\n | ||||||
| 381<\/td>\n | B9.6 Examples B9.6.1 Example Using Flow Diagrams for Building Thermal Envelope and Fabric Load Tests (Sections 5.2.1 and 5.2.2). A program shows agreement with Case 600 but shows large disagreement with the example results annual sensible cooling load predictions … B9.6.2 Example Using Flow Diagrams for Ground-Coupled Slab-on-Grade Analytical Verification Tests (Section 5.2.4). A program shows disagreement with GC70b. Figure B9-6 suggests that the potential source of algorithmic differences includes modeling of… <\/td>\n<\/tr>\n | ||||||
| 383<\/td>\n | B9.6.3 Example Using Flow Diagrams for Space-Cooling Equipment Performance Analytical Verification Tests (Sections 5.3.1 and 5.3.2). A program shows agreement with Case CE100 but shows large disagreement with the quasi-analytical solution results of … B9.6.4 Example Using Flow Diagrams for HVAC Equipment Performance Comparative Tests (Sections 5.3.3 and 5.3.4). A program shows disagreement with Case CE300. Because this is the base case for the CE300 series, Figure B9-9 suggests a number of potenti… <\/td>\n<\/tr>\n | ||||||
| 385<\/td>\n | INFORMATIVE ANNEX B10: INSTRUCTIONS FOR WORKING WITH RESULTS SPREADSHEETS PROVIDED WITH THE STANDARD B10.1 Documentation for RESULTS5-2A.XLSX (given in RESULTS5-2A.DOCX). This workbook contains the ASHRAE SSPC 140 international software developer working group results that are presented as informative example results for the Section 5.2.1, 5.2.2, an… B10.2 Documentation for RESULTS5-2B.XLSX (given in RESULTS5-2B.DOCX). This spreadsheet contains the IEA Task 34\/43 participant results that are presented as informative example results for the Section 5.2.4 ground-coupled slab-on-grade analytical ver… B10.3 Documentation for RESULTS5-3A.XLSX (given in RESULTS5-3A.DOCX). This file contains informative example results generated for the Section 5.3.1 and 5.3.2 HVAC equipment performance tests CE100 through CE200 as described in Informative Annex B16,… <\/td>\n<\/tr>\n | ||||||
| 386<\/td>\n | B10.4 Documentation for RESULTS5-3B.XLSX (given in RESULTS5-3B.DOCX). This file contains informative example results generated for the Section 5.3.3 and 5.3.4 HVAC equipment performance tests CE300 through CE545 as described in Informative Annex B16,… B10.5 Documentation for RESULTS5-4.XLSX (given in RESULTS5-4.DOCX). This file contains informative example results generated for the Section 5.4 HVAC equipment performance tests HE100 through HE230 as described in Informative Annex B16, Section B16.6… B10.6 Documentation for RESULTS5-5FCSZ.XLSX and RESULTS5-5CVVV.XLSX (given in RESULTS5-5.DOCX). These files contain informative example results generated for the Section 5.5 air-side HVAC equipment performance test cases AE101 through AE245 (Sections… <\/td>\n<\/tr>\n | ||||||
| 387<\/td>\n | B10.7 Documentation for RESULTS7-2.XLS (given in RESULTS7-2.DOCX). This file contains Tier 1 and Tier 2 test case example simulation results presented in Informative Annex B20. Table B10-8 presents an index of all sheets contained in the RESULTS7-2.X… <\/td>\n<\/tr>\n | ||||||
| 393<\/td>\n | B11.1 Results for Building Thermal Envelope and Fabric Load Cases of Sections 5.2.1, 5.2.2, and 5.2.3. The full discussion of example results is included in the originating test-suite- update final report B-115.. Portions of that discussion have been… B11.1.1 Selection of Programs for Producing Example Results. The criteria for selection of programs used for producing example results required that INFORMATIVE ANNEX B11: PRODUCTION OF EXAMPLE RESULTS FOR BUILDING THERMAL ENVELOPE AND FABRIC LOAD AND GROUND-COUPLED SLAB-ON-GRADE TESTS OF SECTION 5.2 <\/td>\n<\/tr>\n | ||||||
| 394<\/td>\n | B11.1.2 Nonapplication of Interior Surface Texture. For the example results of Informative Annex B8, Section B8.1, none of the models apply interior surface texture to evaluate interior surface heat transfer, so that inputs from Table 5-8 (see Sectio… B11.1.3 Exclusion of Specific Results. Specific results from the originating test-suite- update final report B-115 used to develop example results were excluded according to a specific set of rules. B11.1.4 Legitimate Modeling Differences. We define legitimate modeling differences or disagreement as where: <\/td>\n<\/tr>\n | ||||||
| 395<\/td>\n | B11.2 Example Results for Ground-Coupled Slab-on-Grade Analytical Verification Tests of Section 5.2.4. An analytical solution was developed for Case GC10a (see Section B11.2.1). Verified numerical-model results were developed for all \u201ca\u201d-series t… B11.2.1 Analytical Solution for Steady-State Heat Flow through the Floor Slab (Case GC10a). For the conditions of Figure B11-1 (same as Figure 5-15), given the slab of area L \u00d7 B surrounded by a perimeter surface boundary of thickness W, and assumin… <\/td>\n<\/tr>\n | ||||||
| 396<\/td>\n | B11.2.2 Development of Comparative Example Results, Ground-Coupled Slab Cases. Table B11-2 describes the models used to generate the example results for the test cases of Section 5.2.4 (see Informative Annex B8, Section B8.2). <\/td>\n<\/tr>\n | ||||||
| 399<\/td>\n | INFORMATIVE ANNEX B12: (Reserved for future use) <\/td>\n<\/tr>\n | ||||||
| 400<\/td>\n | INFORMATIVE ANNEX B13: COP DEGRADATION FACTOR (CDF) AS A FUNCTION OF PART-LOAD RATIO (PLR) B13.1 Derivation of CDF Based on Performance Data <\/td>\n<\/tr>\n | ||||||
| 401<\/td>\n | B13.2 PLR Definition Similarity. PLR in Cases CE100 through CE200 (Sections 5.3.1 and 5.3.2) is defined based on guidance from an equipment manufacturer as <\/td>\n<\/tr>\n | ||||||
| 402<\/td>\n | B13.3 Effect of Part-Load Operation on Moisture Removal. The current set of reference results applies a simplifying assumption in the test specification (see Sections 5.3.1.10.1 and 5.3.3.10.1) that, \u201cAll … moisture that condenses on the evaporat… <\/td>\n<\/tr>\n | ||||||
| 404<\/td>\n | INFORMATIVE ANNEX B14: COOLING-COIL BYPASS FACTOR B14.1 Introduction. Calculation techniques provided here are for illustrative purposes. Some models may have slight variations in the calculation, including the use of enthalpy ratios rather than dry-bulb temperature ratios in Equation B14-1, or diff… B14.2 Calculation of Coil Bypass Factor B14.2.1 Nomenclature <\/td>\n<\/tr>\n | ||||||
| 405<\/td>\n | B14.2.2 Known Information. AHRI conditions applied to the system schematic of Figure B14-1: B14.2.3 Governing Equations B14.2.4 Solution Technique Using ADP Calculated by Extending the Condition Line to the Saturation Curve. To find ADP, extend the condition line of the system through the saturation curve on the psychrometric chart B-56. The condition line is the line… <\/td>\n<\/tr>\n | ||||||
| 406<\/td>\n | B14.2.5 Solution Technique Using ADP Listed in Performance Data. Solving Equation B14-1 using Tdb1 = 80\u00b0F, Tdb2 = 58.1\u00b0F, and ADP = 56.8\u00b0F gives the following: B14.2.6 B14.2.6 Solution by TUD. The TRNSYS-TUD modeler report in Part III of HVAC BESTEST B-16 indicates that B14.2.7 Conclusions. The BF for this system at AHRI conditions is approximately in the range of <\/td>\n<\/tr>\n | ||||||
| 408<\/td>\n | INFORMATIVE ANNEX B15: INDOOR FAN DATA EQUIVALENCE B15.1 For Cases CE100 through CE200 (Sections 5.3.1 and 5.3.2). Fan performance data for indoor fan power (230 W) and airflow rate (900 cfm = 0.425 m3\/s) are based on dry air at standard fan rating conditions. ASHRAE defines a standard condition as 1… B15.2 For Cases CE300 through CE545 (Sections 5.3.3 and 5.3.4). Fan performance data for indoor fan electric power (1242 W), mechanical shaft power (1.565 bhp = 1167 W), and airflow rate (4000 cfm = 1.888 m3\/s) are based on dry air at standard fan ra… <\/td>\n<\/tr>\n | ||||||
| 410<\/td>\n | INFORMATIVE ANNEX B16: ANALYTICAL AND QUASI-ANALYTICAL SOLUTION RESULTS AND EXAMPLE SIMULATION RESULTS FOR HVAC EQUIPMENT PERFORMANCE TESTS OF SECTIONS 5.3, 5.4, AND 5.5 B16.1 Introduction. Example results from quasi-analytical solutions and various detailed building energy simulation programs applied to the tests of Sections 5.3, 5.4, and 5.5 are presented in tabular and graphic form in the electronic media provided… B16.2 Importance of Analytical and Quasi-Analytical Solution Results. The results for the HVAC equipment performance tests of Sections B16.5.1, B16.6, and B16.7 include analytical and quasi-analytical solutions. In general, it is difficult to develop… <\/td>\n<\/tr>\n | ||||||
| 411<\/td>\n | B16.3 Example Simulation Results. The building energy simulation computer programs used to generate example results are described in Informative Annex B17. B16.3.1 Results for Analytical Verification Tests B16.3.2 Results for Comparative Tests. The computer programs used to generate example results for Section B16.5.2 have been subjected to a number of analytical verification, empirical validation, and comparative testing studies. However, there is no … B16.3.3 General Comments Regarding Simulation Results <\/td>\n<\/tr>\n | ||||||
| 412<\/td>\n | B16.4 Nomenclature. Abbreviations and acronyms used in the results tables and figures are defined below. Results are grouped by case numbers, e.g., \u201cCE100\u201d is Case CE100 (Section 5.3.1). Sensitivity results are listed using two case numbers separ… <\/td>\n<\/tr>\n | ||||||
| 415<\/td>\n | B16.5 Tables and Graphs of Example Results for Space-Cooling Equipment Cases CE100 through CE545 B16.5.1 Analytical Verification Test Results, Cases CE100 through CE200. The example results tables and figures shown in Tables B16-1 and B16-2 are included in the files RESULTS5-3A.PDF and RESULTS5-3A.XLSX. Tables and figures appear sequentially in … B16.5.2 Comparative Test Results, Cases CE300 through CE545. The example simulation results tables and figures shown in Tables B16-3 and B16-4 are included in the files RESULTS5-3B.PDF and RESULTS5-3B.XLSX. Tables and figures appear sequentially in t… B16.6 Tables and Graphs of Example Results for Space-Heating Equipment Cases HE100 through HE230. The example results tables and figures shown in Tables B16-5 and B16-6 are included in the files RESULTS5-4.PDF and RESULTS5-4.XLSX. Tables and figures … B16.7 Tables and Graphs of Example Results for Air-Side HVAC Equipment Cases AE101 through AE445 B16.7.1 Analytical Verification Test Results FC and SZ systems, Cases AE101 through AE245. The example results tables and figures listed in Tables B16-7 and B16-8 are included in the files RESULTS5-5FCSZ.PDF and RESULTS5-5FCSZ.XLSX. Tables and figure… <\/td>\n<\/tr>\n | ||||||
| 416<\/td>\n | B16.7.2 Analytical Verification Test Results CV and VAV systems, Cases AE301 through AE445. The example results tables and figures listed in Tables B16-9 and B16-10 are included in the files RESULTS5-5CVVV.PDF and RESULTS5-5CVVV.XLSX. Tables and figu… <\/td>\n<\/tr>\n | ||||||
| 425<\/td>\n | INFORMATIVE ANNEX B17: PRODUCTION OF ANALYTICAL AND QUASI-ANALYTICAL SOLUTION RESULTS AND EXAMPLE SIMULATION RESULTS FOR HVAC EQUIPMENT PERFORMANCE TESTS OF SECTIONS 5.3, 5.4, AND 5.5 B17.1 For Space-Cooling Equipment Cases B17.1.1 Analytical Verification Tests, Cases CE100 through CE200 <\/td>\n<\/tr>\n | ||||||
| 427<\/td>\n | B17.1.2 Comparative Tests, Cases CE300 through CE545 <\/td>\n<\/tr>\n | ||||||
| 428<\/td>\n | B17.1.3 Selection of Programs for Producing Example Simulation Results. The criteria for selection of programs used for producing example results required that B17.2 For Space-Heating Equipment Cases (HE100 through HE170). The analytical and quasi-analytical solutions and programs used to generate the example simulation results are described in Table B17-3. Table B17-3 is organized similarly to Table B17-1;… B17.2.1 Analytical Solutions. The configuration used for tests HE100 through HE130 is well posed for analytical solutions. The results can be used for comparison with the software being tested. <\/td>\n<\/tr>\n | ||||||
| 430<\/td>\n | B17.2.2 Quasi-Analytical Solutions. For Cases HE140 through HE170, analytic solutions are not possible; as such, the reference results are calculated using a discrete time-step calculation similar to the approach applied by most building simulation p… <\/td>\n<\/tr>\n | ||||||
| 435<\/td>\n | B17.2.3 Analytical Solution for Alternate Method of Generating Heating Load with Infiltration. These alternate test cases, described in Section 5.4.1.9, are designed for those simulation programs that do not allow the user to specify constant convect… <\/td>\n<\/tr>\n | ||||||
| 436<\/td>\n | B17.2.4 DOE-2.1E B-99 Simulation Results Using Alternative Space Loading by Infiltration of Section 5.4.1.9. This section provides an example of the application of the alternative method for generating zone loads with infiltration as specified for th… <\/td>\n<\/tr>\n | ||||||
| 439<\/td>\n | B17.3 For Air-Side HVAC Equipment Analytical Verification Tests, Cases AE101 through AE445 B17.3.1 Introduction B17.3.2 Quasi-Analytical Solution Results. The quasi-analytical solution results given in Informative Annex B16, Section B16.7, were developed as part of a collaboration with the ASHRAE Standard 140 committee (SSPC 140) and other international softwa… <\/td>\n<\/tr>\n | ||||||
| 440<\/td>\n | B17.3.3 Selection of Programs for Producing Example Simulation Results. The criteria for selection of programs used for producing example results required that <\/td>\n<\/tr>\n | ||||||
| 441<\/td>\n | INFORMATIVE ANNEX B18: ALTERNATIVE SECTION 7 GROUND COUPLING ANALYSIS CASE DESCRIPTIONS FOR DEVELOPING ADDITIONAL EXAMPLE RESULTS FOR CASES L302B, L304B, L322B, AND L324B B18.1 Soil Modeling and Solar Effects. In the tables that follow, soil thicknesses may be regarded as curved path lengths for one-dimensional heat conduction between a concrete surface\/adjacent soil boundary and a soil\/ambient air boundary. Thus, soi… B18.2 Case L302B Uninsulated Slab-on-Grade. This case is exactly as Case L302A, except that Table B18-1 is used in place of Table 7-36. B18.3 Case L304B Slab-on-Grade with Perimeter Insulation. This case is exactly as Case L304A, except that Table B18-2 replaces Table 7-38. B18.4 Case L322B Uninsulated Conditioned Basement. This case is exactly as Case L322A, except that Table B18-3 replaces Table 7-42 and just the below-grade concrete wall description of Table 7-41. B18.5 Case L324B Interior Insulated Conditioned Basement. This case is exactly as Case L324A, except that Table B18-4 replaces just the below-grade concrete wall description of Table 7-46. <\/td>\n<\/tr>\n | ||||||
| 445<\/td>\n | INFORMATIVE ANNEX B19: DISTRIBUTION OF SOLAR RADIATION IN THE SECTION 7 PASSIVE SOLAR BASE CASE (P100A) <\/td>\n<\/tr>\n | ||||||
| 447<\/td>\n | INFORMATIVE ANNEX B20: EXAMPLE RESULTS FOR SECTION 7 TEST PROCEDURES B20.1 Results Overview. Tier 1 and Tier 2 example results are included in the figures and tables of Section B20.4. These results include tables and graphs of annual heating and cooling loads and tables of monthly heating and cooling loads. Example re… <\/td>\n<\/tr>\n | ||||||
| 448<\/td>\n | B20.2 Comparing with Programs that Designate Heating and Cooling Seasons. Tables and charts of example monthly heating and cooling load results are provided for comparing residential modeling tools that designate heating and cooling seasons. Within R… B20.3 Nomenclature for Informative Annex B20 and RESULTS7-2.XLS <\/td>\n<\/tr>\n | ||||||
| 449<\/td>\n | B20.4 Tier 1 and Tier 2 Example Results. Tables B20-1, B20-2, and B20-3 show the Tier 1 and Tier 2 example results tables and figures included in RESULTS7-2.XLS. <\/td>\n<\/tr>\n | ||||||
| 452<\/td>\n | INFORMATIVE ANNEX B21: PRODUCTION OF EXAMPLE RESULTS FOR SECTION 7 TEST PROCEDURES B21.1 Discussion of Selected Results B21.1.1 Detailed Ground-Coupling Analysis Results for Cases L302B, L304B, L322B, and L324B. The results for two types of ground coupling models included in Informative Annex B20 effectively widen the range of example results outputs for cases that in… B21.1.2 Exterior Surface Coefficient Effects. Part of the spread among the example results can be explained by different assumptions regarding treatment of heat transfer between external surfaces and the surrounding environment. This is especially ev… <\/td>\n<\/tr>\n | ||||||
| 454<\/td>\n | INFORMATIVE ANNEX B22: EXAMPLE PROCEDURES FOR DEVELOPING ACCEPTANCE RANGE CRITERIA FOR SECTION 7 TEST CASES B22.1 Establishing Acceptance Ranges. A certifying or accrediting agency may develop acceptance-range setting criteria to suit particular needs. In choosing algorithms for determining acceptance ranges, it is important to consider the following: B22.2 Example of Procedure for Developing Acceptance Ranges. Table B22-1 presents example fictitious results and acceptance range limits that result from the example procedure described here. A step-by-step description of the procedures used to arriv… <\/td>\n<\/tr>\n | ||||||
| 457<\/td>\n | B22.3 Procedure for Developing Example Acceptance Ranges for HERS Programs that Designate Heating and Cooling Seasons. The same procedure described above may be applied to developing acceptance ranges for software programs that designate heating and … <\/td>\n<\/tr>\n | ||||||
| 458<\/td>\n | INFORMATIVE ANNEX B23: VALIDATION METHODOLOGIES AND OTHER RESEARCH RELEVANT TO STANDARD 140 B23.1 Model Validation and Testing. ANSI\/ASHRAE Standard 140 was developed to identify and diagnose differences in predictions by building performance simulation software that may be caused by algorithmic differences, modeling limitations, faulty cod… B23.1.1 Methodological Basis. There are three ways to evaluate a whole-building performance simulation program\u2019s accuracy B-65,B-66,B-67,B-101,B-129: <\/td>\n<\/tr>\n | ||||||
| 463<\/td>\n | B23.1.2 Summary of Previous Testing And Validation Work. Other work summarizes approximately 100 articles and research papers on analytical, empirical, and comparative testing from 1980 through mid-2001 B-16,B-101,B-129. B23.2 Other Relevant Research. A number of other simulation test suites in various stages of completion could eventually be included in Standard 140. These are summarized in a test suite prioritization roadmap document that is maintained by ASHRAE SS… <\/td>\n<\/tr>\n | ||||||
| 464<\/td>\n | INFORMATIVE ANNEX B24: INFORMATIVE REFERENCES <\/td>\n<\/tr>\n | ||||||
| 470<\/td>\n | INFORMATIVE ANNEX C: ADDENDA DESCRIPTION INFORMATION <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":" ASHRAE Standard 140-2020 — Method of Test for Evaluating Building Performance Simulation Software (ANSI Approved)<\/b><\/p>\n |