GB/T 29030-2012Positive displacement CO2 refrigerant compressor(unit) (English PDF)
容积式CO2制冷压缩机(组)
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Issued by
SAMR; SAC
Level / Type
National · Recommended
Issue date
December 31, 2012
Implementation date
October 1, 2013
Scope
GB/T 29030-2012 is the English-translated version of 容积式CO2制冷压缩机(组).
GB/T 29030-2012 is the Chinese standard "Positive displacement CO2 refrigerant compressor(unit)".
Its scope clause reads: This standard specifies the displacement CO2 refrigeration compressor (group) in the name of working conditions, performance tolerances and test requirements and test methods, this standard Also it provides input power, cooling coefficient, volumetric efficiency, isentropic efficiency calculation.
Conditions and test methods described in volunteers for measuring Capacity of the compressor, power, volumetric efficiency, the isentropic efficiency and coefficient of performance.
This standard applies to CO2 displacement refrigerant compressors (hereinafter referred to as "compressor") and volumetric CO2 refrigeration compressor (hereinafter Referred to as "unit"). Its clauses include terms and definitions; nominal conditions.
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Document preview — GB/T 29030-2012
National Standard of the People's Republic of China
- ICS
- 27.200
- Classification
- J 73
Issued by: State Administration for Market Regulation; Standardization Administration of the PRC
Contents
- Introduction
- 1 Scope
- 2 Normative references
- 3 Terms and definitions
- 4 nominal condition
- 5 Performance tolerance
- 7 Test methods
- 8 input power calculation
- 9 refrigeration coefficient calculation
- 10 Calculation of volumetric efficiency
- 11 isentropic efficiency calculation
- 13 Symbols and Definitions
1 Scope
This standard specifies the displacement CO2 refrigeration compressor (group) in the name of working conditions, performance tolerances and test requirements and test methods, this standard
Also it provides input power, cooling coefficient, volumetric efficiency, isentropic efficiency calculation. Conditions and test methods described in volunteers for measuring
Capacity of the compressor, power, volumetric efficiency, the isentropic efficiency and coefficient of performance.
This standard applies to CO2 displacement refrigerant compressors (hereinafter referred to as "compressor") and volumetric CO2 refrigeration compressor (hereinafter
Referred to as "unit").
2 Normative references
The following documents for the application of this document is essential. For dated references, only the dated version suitable for use herein
Member. For undated references, the latest edition (including any amendments) applies to this document.
GB/T 2624.1 with the differential pressure measuring device mounted to round pipe full pipe fluid flow - Part 1. General principles and
Claim
GB/T 2624.2 with the differential pressure measuring device mounted to round pipe full pipe fluid flow - Part 2. Orifice
GB/T 2624.3 with the differential pressure measuring device mounted to round pipe full pipe fluid flow Part 3. Nozzles and Venturi
Nozzle
GB/T 2624.4 with the differential pressure measuring device mounted to round pipe full pipe fluid flow - Part 4. Venturi tubes
GB/T 5773-2004 Volume refrigeration compressor performance test methods
JB/T 7249 term refrigeration equipment
3 Terms and Definitions
JB/T 7249 and GB/T 5773 defined by the following terms and definitions apply to this document.
3.1 Volumetric CO2 refrigerant compressors positivedisplacementCO2refrigerantcompressor
By compressing the CO2 refrigerant to achieve cooling and heating function of displacement compressors.
3.2 Volumetric CO2 refrigeration compressor positivedisplacementCO2refrigerantcompressorunit
Assembled together by a CO2 refrigeration compressor displacement, prime mover or other accessories (such as oil pump, oil cooler, oil separator, etc.) for
CO2 refrigerant compressor unit.
3.3 Cooling capacity
Refrigerant gas from the refrigerant mass flow through compressor test measured by multiplying the specific enthalpy of the compressor suction pressure relative to the exhaust port
Corresponding to the saturation temperature of the liquid specific enthalpy (subcritical cycle) or specific enthalpy (transcritical cycle) the difference between the refrigerant before expansion.
4 Nominal Conditions
Compressor (group) in the name of working conditions in accordance with Table 1.
......
This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 15 pages — is available in the English PDF.
Referenced standards
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