This standard specifies the terms and definitions, test requirements, test methods and input power, cooling (heating) coefficient of performance, volume efficiency, isentropic efficiency, and calculation of test deviation of positive displacement refrigerant compressors.
This standard is applicable to performance tests for single-stage positive displacement refrigerant compressor (hereinafter referred to as "single-stage compressor"), positive displacement refrigerant compressor with economizer (hereinafter referred to as "compressor with economizer") and positive displacement refrigerant compressor with flash-tank (hereinafter referred to as "compressor with flash-tank"), and serves as reference for the test of other compressors.
2 Normative references
The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
GB/T 2624.1 Measurement of fluid flow by means of pressure differential devices inserted in circular cross-section conduits running full - Part 1: General principles and requirements
GB/T 2624.2 Measurement of fluid flow by means of pressure differential devices inserted in circular cross-section conduits running full - Part 2: Orifice plates
GB/T 2624.3 Measurement of fluid flow by means of pressure differential devices inserted in circular cross-section conduits running full - Part 3: Nozzles and Venturi nozzles
GB/T 2624.4 Measurement of fluid flow by means of pressure differential devices inserted in circular cross-section conduits running full - Part 4: Venturi tubes
GB 9237 Mechanical refrigerating systems used for cooling and heating - Safety requirements
GB/T 29030-2012 Positive displacement CO2 refrigerant compressor (unit)
JB/T 7249 Refrigerating equipment - Terms
3 Terms and definitions
For the purposes of this document, the terms and definitions given in JB/T 7249 and the following apply.
