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ASME PTC 4.3-2017
M00053018
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ASME PTC 4.3-2017 Air Heaters
standard by ASME International, 03/31/2017
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The Code on Definitions and Values (ASME PTC 2)defines the meaning and values of basic technical termsand numerical constants that are used throughout thisCode.In stock
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Air Heaters
Performance Test Codes
AN A MERICAN NA TIONAL S T AND ARD
ASME PTC 4.3-2017
[Revision of ASME PTC 4.3-1968 (R1991)]
ASME PTC 4.3-2017
[Revision of ASME PTC 4.3-1968 (R1991)]
Air Heaters
Performance Test Codes
AN AMERICAN NA TIONAL S T AND ARD
Two Park Avenue • New York, NY • 10016 USA
Date of Issuance: March 31, 2017
This Code will be revised when the Society approves the issuance of a new edition.
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The American Society of Mechanical Engineers Two Park Avenue, New York, NY 10016-5990
Copyright © 2017 by
THE AMERICAN SOCIETY OF MECHANICAL ENGINEERS
All rights reserved Printed in U.S.A.
CONTENTS
Notice xii
Foreword xiii
Committee Roster xiv
Correspondence With the PTC Committee xv
Introduction Section 1 | ........................................................................... Object and Scope ....................................................... | xvii 1 |
1-1 | Object ................................................................. | 1 |
1-2 | Scope .................................................................. | 1 |
1-3 | Measurement Uncertainty .............................................. | 1 |
Section 2 | Definitions of Terms and Symbols ........................................ | 2 |
2-1 | General ................................................................ | 2 |
2-2 | Definitions ............................................................. | 2 |
2-3 | Calculation Acronyms .................................................. | 5 |
2-3.1 | Property Symbols ...................................................... | 6 |
2-3.2 | Function Symbols ...................................................... | 6 |
2-3.3 | Equipment, Stream, and Efficiency Symbols ............................. | 6 |
2-3.4 | Location, Area, Component, and Constituent Symbols .................. | 7 |
2-3.5 | Correction Symbols .................................................... | 7 |
2-3.6 | Computational Acronyms Used In Section 5 — Computation of Results .............................................................. | 7 |
2-3.7 | Uncertainty Acronyms Used In Section 5 — Computation of Results .... | 7 |
2-3.8 | General List of Symbols Used in Section 7 .............................. | 7 |
2-4 | Abbreviations .......................................................... | 7 |
2-5 | Abbreviations for the Boundary Figures ................................ | 8 |
2-5.1 | Property Symbols ...................................................... | 8 |
2-5.2 | Equipment and Stream Symbols ........................................ | 8 |
2-5.3 | Location Symbols ...................................................... | 8 |
2-5.4 | Correction/Design Symbols ............................................ | 8 |
2-5.5 | Air Heater/Air Preheater Boundaries ................................... | 8 |
2-5.6 | Sequence .............................................................. | 8 |
Section 3 | Guiding Principles....................................................... | 14 |
3-1 | Introduction ........................................................... | 14 |
3-2 | Preparation for the Test ................................................ | 14 |
3-2.1 | Pretest Agreements .................................................... | 15 |
3-2.2 | Pretest Uncertainty Analysis ............................................ | 16 |
3-2.3 | Selection and Training of Test Personnel ................................ | 16 |
3-2.4 | Pretest Checkout ....................................................... | 16 |
3-2.5 | Pretest Traverse ........................................................ | 16 |
3-2.6 | Preliminary Run ....................................................... | 16 |
3-3 | Method of Operation During Test ...................................... | 16 |
3-3.1 | Stability of Test Conditions ............................................. | 16 |
3-3.2 | Duration of Runs ...................................................... | 17 |
3-3.3 | Adjustments During Test ............................................... | 17 |
3-3.4 | Rejection of Runs ...................................................... | 17 |
3-3.5 | Number of Runs and Repeatability Criteria ............................. | 17 |
3-3.6 | Multiple Runs ......................................................... | 17 |
3-4 | Comparing Results With Standard or Design Performance ............... | 18 |
3-5 | Multiple Air Heater Configurations .................................... | 18 |
3-5.1 | Multiple Air Heaters of the Same Design/Type ......................... | 18 |
3-5.2 | Multiple Air Heaters of Different Designs/Types ........................ | 18 |
3-6 | Uncertainty ............................................................ | 18 |
3-7 | References to Other Codes and Standards .............................. | 18 |
3-7.1 | ASME Performance Test Codes ......................................... | 18 |
3-7.2 | ASTM Standard Methods .............................................. | 19 |
3-7.3 | GPA Standard ......................................................... | 19 |
3-7.4 | ISA Standard .......................................................... | 19 |
Section 4 | Instruments and Methods of Measurement................................ | 22 |
4-1 | Introduction ........................................................... | 22 |
4-2 | Data Required ......................................................... | 22 |
4-3 | Grid ................................................................... | 22 |
4-3.1 | Measurement Location ................................................. | 22 |
4-3.2 | Stratification ........................................................... | 23 |
4-4 | Flow Weighting ........................................................ | 24 |
4-5 | Temperature Measurement ............................................. | 25 |
4-5.1 | Thermocouples ........................................................ | 25 |
4-5.2 | Liquid-in-Glass Thermometers ......................................... | 26 |
4-5.3 | RTDs .................................................................. | 26 |
4-5.4 | Systematic Uncertainty ................................................. | 27 |
4-5.5 | Air and Flue Gas Measurements ........................................ | 27 |
4-5.6 | Dry Bulb (Ambient) and Wet Bulb Temperature ......................... | 28 |
4-5.7 | Ice Bath Temperature .................................................. | 28 |
4-6 | Pressure Measurement ................................................. | 28 |
4-6.1 | Pressure Reading Instruments .......................................... | 28 |
4-6.2 | Systematic Uncertainty ................................................. | 28 |
4-6.3 | Static Pressure ......................................................... | 29 |
4-6.4 | Velocity Pressure ....................................................... | 29 |
4-6.5 | Averaging of Fluctuating Pressure ...................................... | 30 |
4-6.6 | Calculation of Velocity and Mass Flow From Velocity Pressure | |
Measurements ....................................................... | 30 | |
4-7 | Flow Measurement ..................................................... | 33 |
4-7.1 | General ................................................................ | 33 |
4-7.2 | Air and Flue Gas ...................................................... | 33 |
4-7.3 | Liquid Fuel ............................................................ | 34 |
4-7.4 | Gaseous Fuel .......................................................... | 34 |
4-7.5 | Solid Fuel and Sorbent Flow ........................................... | 34 |
4-7.6 | Residue Splits .......................................................... | 34 |
4-8 | O2 Analysis ............................................................ | 35 |
4-8.1 | Electronic Analyzers ................................................... | 35 |
4-8.2 | Chemical (Orsat) ....................................................... | 35 |
4-8.3 | Gas Sampling Techniques .............................................. | 35 |
4-8.4 | Preparation Methods ................................................... | 36 |
4-9 | Humidity Measurement ................................................ | 38 |
4-9.1 | General ................................................................ | 38 |
4-9.2 | Systematic Uncertainty for Humidity Measurement ..................... | 38 |
4-9.3 | Method of Measurement ............................................... | 38 |
4-10 | Fuel, Sorbent, and Residue Sampling ................................... | 38 |
4-10.1 |