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ASHRAE STD 41.10

Standard Methods for Refrigerant Flow Measurement Using Flowmeters

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Organization: ASHRAE
Publication Date: 1 January 2020
Status: active
Page Count: 48
scope:

This standard applies to refrigerant mass flow rate measurements in laboratory and field applications where the entire flow stream of the refrigerant enters and exits the flowmeter either as a vapor-only or liquid-only state during data recording.

This standard does not apply to

a. gaseous refrigerant flow rate measurement for refrigerants that are not mixed with lubricant because those measurements are within the scope of ASHRAE Standard 41.7 1 or

b. liquid refrigerant flow rate measurement for refrigerants that are not mixed with lubricant because those measurements are within the scope of ASHRAE Standard 41.8 2.

PURPOSE

This standard prescribes methods for refrigerant mass flow rate measurement in laboratory and field applications using flowmeters. Refrigerant mass flow rate measurements are required for compressor performance tests and for testing other heating, ventilating, air-conditioning, and refrigerating systems and components. Each refrigerant mass flow rate is determined by subtracting the measured lubricant mass flow rate from the measured refrigerant/lubricant mixture mass flow rate.

1. ASHRAE. 2018. ANSI/ASHRAE Standard 41.7-2015 (RA2018), Standard Methods for Gas Flow Measurement. Atlanta: ASHRAE.

2. ASHRAE. 2019. ANSI/ASHRAE Standard 41.8-2016 (RA2019), Standard Methods for Liquid Flow Measurement. Atlanta: ASHRAE.

Document History

ASHRAE STD 41.10
January 1, 2020
Standard Methods for Refrigerant Flow Measurement Using Flowmeters
This standard applies to refrigerant mass flow rate measurements in laboratory and field applications where the entire flow stream of the refrigerant enters and exits the flowmeter either as a...
June 22, 2013
Standard Methods for Refrigerant Mass Flow Measurement Using Flowmeters
This standard applies where the entire flow stream of the refrigerant both enters and exits the flowmeter as either a "vapor only" or a "liquid only" state. PURPOSE This standard prescribes methods...
January 19, 2008
Standard Methods for Volatile-Refrigerant Mass Flow Measurements Using Flowmeters
(a) This standard applies where the entire flow stream of the volatile refrigerant both enters and exits either as a “vapor only” or “liquid only” state. (b) This standard covers all refrigerants...
January 30, 2003
Flowmeter Test Methods for Mass Flow Measurement of Volatile Refrigerants
(a) This standard applies where the entire flow stream of the volatile refrigerant both enters and exits either as a “vapor only” or “liquid only” state. (b) This standard covers all refrigerants...

References

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