ASME PTC 30 91 RA05:1991 Edition
$98.04
ASME PTC 30 Air Cooled Heat Exchangers
| Published By | Publication Date | Number of Pages |
| ASME | 1991 | 91 |
PDF Catalog
| PDF Pages | PDF Title |
|---|---|
| 4 | Foreword |
| 6 | Committee Roster |
| 8 | CONTENTS |
| 11 | 0 INTRODUCTION |
| 12 | 1Object And Scope 1.1 Object 1.2 Scope 1.3 Uncertainty |
| 14 | 2 Definitionsand Description of Terms 2.1 Terms |
| 17 | 2.2 Letter Symbols |
| 20 | 3 Guiding Principles 3.1 General 3.2 Agreements Prior to Test 3.3 Selection of Personnel 3.4 Pre-Test Uncertainty Analysis 3.5 Arrangement of Test Apparatus |
| 21 | 3.6 Methods of Operation During Testing 3.7 Provisions for Equipment Inspection 3.8 Calibration of Instruments 3.9 Preliminary Testing |
| 22 | 3.10 Conduct of Test 3.11 Permissible and Nonpermissible Adjustments to Test Procedures 3.12 Duration of Test 3.13 Number of Test Readings 3.14 Permissible Limits of Test Parameters |
| 23 | 3.15 Degree of Constancy of Test Conditions 3.16 Causes for Rejection of Test Readings or Results 3.17 Post-testuncertainty Analysis |
| 24 | 4 Instruments and Methods of Measurement 4.1 GENERAL 4.2 Measurement of Physical Dimensions 4.3 Fan Measurements 4.4 Measurement of Air Flow |
| 25 | Figures 4.1 Location of Air Velocity and Temperature Measurement Points Across Fan Ring |
| 26 | 4.5 Measurement Of Air-Side Pressure Differential Tables 4.1 Recommended Minimum Number of Air Velocity Measurement Points for Fan Ring Traverse |
| 27 | 4.6 Measurement of Fan Driver Power 4.2 Typical Velocity Distribution Across Fan Stack |
| 28 | 4.7 Measurement of Sound Level 4.8 Measurement of Atmospheric Pressure 4.9 Measurement of Environmental Effects 4.10 Measurement of Wind Velocity 4.11 Measurement of Air Temperatures |
| 29 | 4.12 Measurement of Ambientand Entering Air Temperatures 4.13 Measurement of Exit Air Temperature 4.14 Measurement of Process Fluid Temperatures 4.15 Measurement of Process Fluid Pressures |
| 30 | 4.16 Measurement of Process Fluid Flow Rate 4.17 Measurement of composition of Process Fluid |
| 31 | 5 Computation of Results 5.1 General 5.2 Review of Test Data and Test Conditions 5.3 Reduction of Test Data |
| 32 | 5.4 Determination of Material and Heat Balances |
| 33 | 5.5 Computation of Effective Mean Temperature Difference 5.6 Computation of Overall Heat Transfer Coefficient |
| 34 | 5.7 Determination of Air-Side Pressure Losses 5.8 Determination of Process Fluid Pressure Losses |
| 36 | 5.9 Adjustments of Test Data to Design Conditions |
| 39 | 5.1 Values of Ftr for EQ. (5.38) |
| 41 | 5.1 MeanTemperature Difference Relationships – Crossflow Unit – 1 Tube Row, Unmixed |
| 42 | 5.2 Mean Temperature Difference Relationships Crossflow Unit – 2 Tube Rows, 1 Pass, Unmixed |
| 43 | 5.3 Mean Temperature Difference Relationships Crossflow Unit – 3 Tube Rows, 1 Pass, Unmixed |
| 44 | 5.4 Mean Temperature Difference Relationships Crossflow Unit – 4 Tube Rows, 1 Pass, Unmixed |
| 45 | 5.5 Mean Temperature Difference Relationships Crossflow Unit – 2 Tube Rows, 2 Passes, Unmixed Between Passes |
| 46 | 5.6 Mean Temperature Difference Relationships Crossflow Unit – 3 Tube Rows, 3 Passes,Unmixed Between Passes |
| 47 | 5.7 Mean Temperature Difference Relationships Crossflow Unit – 4 Tube Rows, 4 Passes, Unmixed Between Passes |
| 48 | 5.8 Mean Temperature Difference Relationships Crossflow Unit – 4 Tube Rows in 2 Passes, 2 Tube Rows Per Pass, Mixed at t |
| 49 | 5.9 Schematic Of Process Fluid Piping |
| 50 | 5.10 Fin Efficiency of Several Types of Straight Fins |
| 51 | 5.11 Efficiency Curves for Four Types of Spine Fins |
| 52 | 5.12 Efficiency of Annular Fins of Constant Thickness |
| 53 | 5.13 Efficiency of Annular Fins With Constant Metal Area for Heatflow |
| 54 | 6 Report of Results 6.1 Composition of Report |
| 55 | 6.2 Report Data |
| 56 | Appendices A – Testing Guidelines |
| 58 | B – Example |
| 64 | C – Example Uncertainty Analysis |
| 67 | Tables C.1a Sensitivity Factors for Uncertainty Analysis |
| 68 | C.1b Sensitivity Factors for Uncertainty Analysis |
| 69 | C.2 Error Estimate Values for Capability |
| 70 | C.3 Error Estimate Values for Capability |
| 71 | C.4 Two-tailed STUDENT-t Table for The 95 Percent Confidence Level |
| 72 | D – Special Considerations for Computation and Adjustment of Results |
| 73 | Figures D.1 Moody-darcy Friction Factor Chart for Flow Through Plain Tubes |
| 76 | D.2a Chart for Calculating In-Tube Heat Transfer Coefficients for Water |
| 77 | D.2b Correction Factor To Fig. D.2a For Other Tube Diameters |
| 79 | D.3 Two-phase Flow Friction Pressure Drop Correction Factor |
| 80 | D.4 B A Function for wm for Thechaddock Method |
| 81 | D.5 Colburn Correlation for Condensation on a Vertical Surface – No Vapor Shear |
| 84 | E – Fouling |
| 85 | F – Recirculation of Air |
| 86 | G – References |
