BSI PD CLC/TS 50594:2015
$198.66
Tumble dryers for commercial use. Methods for measuring the performance
| Published By | Publication Date | Number of Pages |
| BSI | 2015 | 62 |
This Technical Specification is applicable to tumble dryers for commercial use of the automatic and non-automatic type, incorporating an electric or steam heating device. It also includes tumble dryers which use gas as a heating source with a reference to appropriate EN gas standards. The object is to state and define the principal performance characteristics of tumble dryers for commercial use of interest to users and to describe standard methods for measuring these characteristics. NOTE It does not apply to transfer tumble dryers or dryers with automatic loading and unloading.
PDF Catalog
| PDF Pages | PDF Title |
|---|---|
| 7 | Foreword |
| 8 | 1 Scope 2 Normative references 3 Terms, definitions and symbols 3.1 Terms and definitions |
| 11 | 3.2 List of symbols Table 1 — List of symbols |
| 12 | 4 Requirements 4.1 General |
| 13 | 4.2 Rated capacity 4.3 Dimensions |
| 14 | 5 Test conditions, materials, equipment and instrumentation 5.1 General 5.2 Ambient conditions 5.2.1 Electricity supply 5.2.2 Water supply 5.2.2.1 General 5.2.2.2 Water temperature and pressure 5.2.2.3 Water hardness |
| 15 | 5.2.2.4 Water alkalinity and conductivity 5.2.3 Ambient temperature and humidity 5.2.3.1 Ambient temperature and relative humidity for tumble dryer testing 5.2.3.2 Ambient temperature and ambient relative humidity for conditioning of test load items 5.3 Test materials 5.3.1 General |
| 16 | 5.3.2 Test load 5.3.3 Detergent 5.4 Equipment 5.4.1 Equipment for normalization 5.4.2 Equipment for conditioning the test load 5.4.3 Equipment for wetting the test load prior to a test 5.4.4 Equipment for measurement |
| 17 | 5.5 Instrumentation and accuracy |
| 18 | Table 2 — Specification of instruments 6 Preparation for testing 6.1 General 6.2 Test specifications from manufacturers 6.3 Installation of the tumble dryer |
| 19 | 6.4 Preparation of the tumble dryer for a test series 6.5 Preparation of the tumble dryer for a test run 6.6 Preparation of test loads 6.6.1 General |
| 20 | 6.6.2 Pre-treatment of new test load items prior to use 6.6.3 Requirements regarding the age of test load items 6.6.4 Normalization of test load items 6.6.4.1 General 6.6.4.2 Normalization procedure of test load items 6.6.5 Conditioning of test load items 6.6.5.1 General |
| 21 | 6.6.5.2 Conditioning of test load items in an ambient controlled room/chamber 6.6.5.3 Conditioning of test load items using the bone dry method 6.6.6 Test load composition 6.6.6.1 General Table 3 — Number of items in the test load for various test load masses |
| 23 | 6.6.6.2 Calculation of the composition of test load items for load sizes above 10 kg and not shown in Table 3 6.6.7 Wetting 6.6.7.1 Temperature of the test load 6.6.7.2 Wetting procedure |
| 24 | Table 4 – Specifications for initial moisture content in the test load 7 Performance measurements – General requirements |
| 25 | 8 Tests for performance 8.1 General 8.2 Test procedure for performance tests 8.2.1 Test conditions, materials and preparation for testing 8.2.2 Programme Table 5 — Specification for final moisture content of the test load after drying in a cotton dry programme |
| 26 | 8.2.3 Test load 8.2.4 Test procedure 8.2.5 Validity of a test run 8.2.6 Validity of a test series |
| 27 | 8.3 Measurements to determine water and energy consumption and programme time 8.3.1 General 8.3.2 Procedure 8.4 Measurements to determine condensation efficiency 8.4.1 General 8.4.2 Procedure |
| 28 | 8.5 Measurements to determine exhaust air volume 8.6 Performance measurement at maximum exhaust duct pressure 8.7 Measurement of the textile drying temperature 9 Assessment of performance 9.1 General 9.2 Final moisture content of the load |
| 29 | 9.3 Total energy 9.4 Corrected energy |
| 30 | 9.5 Corrected water consumption 9.6 Corrected programme time |
| 31 | 9.7 Condensation efficiency |
| 32 | 9.8 Evaporation capacity 9.9 Exhaust air volume 10 Data to be reported |
| 33 | Annex A (normative) Reference list A.1 Reference detergent A.2 Specification of test load A.3 The bone dry method of conditioning A.4 Uncertainty of measurement A.5 Environmental aspects of tumble dryer use A.6 Source of materials and supplies A.7 Washing machine for normalization |
| 34 | Annex B (normative) Exhaust ducts for tumble dryer testing B.1 General B.2 Specification of the exhaust duct type 1 B.2.1 Duct material B.2.2 The form of the duct Figure B.1 — Exhaust duct bend |
| 35 | Table B.1 — Equivalent tube length of a 90 bend B.2.3 Instrumentation B.3 Exhaust duct type 2 B.3.1 General B.3.2 Specification of exhaust duct Type 2 B.3.3 Setting the correct exhaust duct pressure |
| 36 | Figure B.2 — Exhaust duct Type 2 |
| 37 | Table B.2 — Pressure drop values for different diameters and flows for a 15 m long duct |
| 39 | Annex C (informative) Flow diagrams Figure C.1 |
| 40 | Figure C.2 |
| 41 | Annex D (normative) Test report – Data to be reported Table D.1 — Identification data |
| 42 | Table D.2 — Test measurements |
| 44 | Table D.3 — Test conditions and materials |
| 45 | Annex E (normative) Procedure to determine test load size where rated capacity is not declared E.1 General E.2 Determination of the volume of the clothes container E.3 Determination of the test load |
| 46 | Annex F (normative) Flexible initial moisture content method F.1 General F.2 Procedure F.3 Evaluation |
| 48 | Annex G (normative) Performance testing of steam heated tumble dryers G.1 General G.2 Types of steam heating — Steam heated tumble dryers G.3 Specification of steam properties G.3.1 Type of steam G.3.2 Steam generator G.4 Equipment and instrumentation G.4.1 Test equipment for measuring the characteristics of steam G.4.1.1 Flow meter for measurement of steam velocity and mass flow G.4.1.2 Pressure sensor for measurement of the steam pressure G.4.1.3 Temperature sensor for measurement of the steam and condensate temperature |
| 49 | G.4.1.4 Scale for measurement of the mass of the condensate G.4.1.5 Steam calculator G.4.2 Instruments G.4.3 Measurements G.5 Installation G.5.1 General |
| 50 | G.5.2 Installation of the measurement equipment for indirect steam heated tumbler dryers.(Alternative 1) Figure G.1 — Schematic installation of the measurement equipment for steam heated tumble dryers (Alternative 1) |
| 51 | G.5.3 Installation of the measurement equipment for indirect steam heated tumble dryers. (Alternative 2) |
| 52 | Figure G.2 — Schematic installation of the measurement equipment for steam heated tumble dryers (Alternative 2) G.6 Preparation for testing G.6.1 General G.6.2 Indirect heated tumble dryer installed according to Alternative 1 |
| 53 | G.6.3 Indirect heated tumble dryer installed according to alternative 2 G.7 Tests for performance G.7.1 General G.7.2 Performance testing of indirect steam heated tumble dryer installed according to alternative 1 G.7.3 Performance testing of indirect heated tumble dryers installed according to Alternative 2 G.7.3.1 General |
| 54 | G.7.3.2 Control of accuracy G.8 Assessment of performance G.8.1 General G.8.2 Evaluation of performance of indirect heated tumble dryer installed according to alternative 1 G.8.2.1 General G.8.2.2 Evaluation of supplied steam energy G.8.2.3 Evaluation of the energy to be recovered through the condensate |
| 55 | G.8.3 Evaluation of performance of indirect heated tumbler dryers installed according to alternative 2 G.8.3.1 General G.8.3.2 Evaluation of supplied steam energy G.8.3.3 Evaluation of the energy to be recovered through the condensate G.8.4 Evaluation of total energy supplied to the tumbler dryer by steam G.9 Data to be reported |
| 56 | Annex H (informative) Performance testing of gas heated tumble dryers H.1 General H.2 Installation, testing procedure and calculation of supplied gas energy |
| 57 | Annex I (informative) Measurement of exhaust air volume I.1 Procedure I.2 Exhaust air volume |
| 58 | Annex J (normative) Measurement of the textile drying temperature J.1 General J.2 Specification of the loggers Table J.1 — Specification of temperature logger suitable for temperature measurement for both washing and drying J.3 Preparation of the loggers before measurement J.4 Number of loggers |
| 59 | Table J.2 — Number of temperature loggers to be used during a textile drying temperature measurement J.5 Measuring the temperature J.6 Presenting the result |
| 60 | Bibliography |
