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ASHRAE Standard 22 2023

ASHRAE Standard 22 2023

$40.63

ASHRAE Standard 22-2023 Method of Testing for Rating Liquid-Cooled Refrigerant Condensers (ANSI Approved)

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ASHRAE 2023
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ASHRAE Standard 22 prescribes methods of testing the thermal performance and liquid-side pressure drop of liquid-cooled refrigerant condensers. The 2023 revision of Standard 22 updates references and makes minor editorial changes. This standard includes online access to the Uncertainty Analysis Methodology workbook (See Appendix A).

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PDF Pages PDF Title
1 ANSI/ASHRAE Standard 22-2023
3 Contents
4 Foreword
1. Purpose
2. Scope
3. Definitions
4. Required Test Results
4.1 In expressing test results, the following parameters shall be stated:
5 4.2 For all parameters listed in Section 4.1, uncertainty shall be calculated as described in Section 7.4.
5. Test Methods
5.1 Standard Test Methods
5.2 Primary Test Method
7 5.3 Confirming Test Methods
8 6. Instruments and Test Apparatus
6.1 General
6.2 Temperature Measuring Instruments
6.3 Pressure Measuring Instruments
6.4 Electric Measuring Instruments
6.5 Refrigerant Flow Measuring Instruments
9 6.6 Cooling Liquid Flow Measuring Instruments
6.7 Time Measurements. Time measurements shall be made with an apparatus whose minimum accuracy is within Ā±0.1% of the elapsed time.
6.8 Weight Measurements. Weight measurements shall be made with an apparatus whose minimum accuracy is within Ā±0.5% of the quantity measured.
7. Test Procedure
7.1 Apparatus Assembly
7.2 Operation and Limits
7.3 Computation of Results
10 7.4 Uncertainty Analysis for Computed Results
8. References
12 Informative Appendix A: Uncertainty Analysis
A1. Definitions
A2. Methodology for Uncertainty Analysis
13 A3. Development of Uncertainty Calculations for Condenser Testing
16 A4. References
17 Informative Appendix B: Method to Compute the Enthalpy Difference of a Liquid Stream When an EoS-based Function Is not Available
B1. Overview
B2. Derivation of an Estimate for Enthalpy Difference
18 B3. Example
19 B4. Recommendations
B5. References
22 Informative Appendix C: Method for Determining the Presence of Noncondensable Gases in Liquid-cooled Refrigerant Condensers

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ASHRAE Standard 22 2023
$40.63