SAE J2765-2008
试验支路上移动式空气调节系统的性能系数(COP)测量程序

Procedure for Measuring System COP (Coefficient of Performance) of a Mobile Air Conditioning System on a Test Branch

被代替

SAE J2765-2008 发布历史

This Standard applies to motor driven mobile air conditioning systems consisting of one in-car air coil (evaporator), a compressor, an expansion device, and one under-hood air coil (condenser). This standard can also be used for measuring systems that use electrically driven compressor if measurement of input power to compressor is carefully considered. This standard can also be used for measuring systems that include the entire air handling system if air side pressure drop for the entire vehicle system is carefully considered. This standard can also be used for measuring systems that include the entire front end cooling module if air side pressure drop for the entire vehicle system is carefully considered. This standard can also be used for measuring systems that include a secondary cooling loop if the power to drive the pumps in this system is carefully considered. This Standard specifies procedures, apparatus, and instrumentation that will produce accurate steady state capacity and efficiency data for refrigerant components. This Standard does not: Specify tests for dual evaporator systems; Specify transient test methods; Make recommendations for safety; Specify tests for production, specification compliance, or field testing of mobile air conditioning systems. This Standard provides a method of testing the capacity (performance) and efficiency (COP) of mobile air conditioning refrigerant systems under steady state conditions. The procedure proposed is designed to give maximum repeatability and minimum error in determining cooling capacity (Q) and efficiency (COP - Coefficient of Performance) of the refrigeration system of the mobile air conditioner. For that reason a "breadboard" type facility is proposed in which components are assembled into a system and exposed to operating conditions in individual, separately controlled chambers. The facility should allow for three methods to determine system performance: refrigerant side, airside, and calorimetric chambers. Each side yields its own energy balance calculation to find the capacity of the system. With the three methods used, instead of two as typically required, redundancy will be maintained even when the evaporator refrigerant exit is two phase. In this case only the airside and chamber balances are available. The design should be made so that two independent methods could provide agreement of less than +/-4.0% between two independent balances.

SAE J2765-2008由美国机动车工程师协会 US-SAE 发布于 2008-10-16，并于 2017-07-11 实施。

SAE J2765-2008 在中国标准分类中归属于: T36 电子、电气设备，在国际标准分类中归属于: 23.120 通风机、风扇、空调器,43.160 特种车辆。

SAE J2765-2008 发布之时，引用了标准

• ANSI/ASHRAE 37-2005 电动整体空调和热泵设备的额定值试验方法*， 2023-05-29 更新
• ANSI/ASHRAE 41.4-1996 液体制冷剂中润滑油比例的测量方法
• ANSI/ASHRAE 41.6-1994 潮湿空气特性的测量方法
• ANSI/ASHRAE 51-2001 风扇的空气动力性能评定的实验室试验方法*， 2023-05-29 更新
• ASHRAE 41.2 实验室气流测定的标准方法
• ASHRAE 41.3 *， 2014-06-28 更新

* 在 SAE J2765-2008 发布之后有更新，请注意新发布标准的变化。

SAE J2765-2008的历代版本如下：

• 2017年 SAE J2765-2017 SAE J 2765-2017
• 2008年 SAE J2765-2008 试验支路上移动式空气调节系统的性能系数(COP)测量程序

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标准号

SAE J2765-2008

发布

2008年

发布单位

美国机动车工程师协会

替代标准

SAE J2765-2017

当前最新

SAE J2765-2017

 

 

引用标准

ANSI/ASHRAE 37-2005 ANSI/ASHRAE 41.1-1986 ANSI/ASHRAE 41.4-1996 ANSI/ASHRAE 41.6-1994 ANSI/ASHRAE 51-2001 ARI 200 ASHRAE 41.2 ASHRAE 41.3 NIST 23

适用范围

This Standard applies to motor driven mobile air conditioning systems consisting of one in-car air coil (evaporator), a compressor, an expansion device, and one under-hood air coil (condenser). This standard can also be used for measuring systems that use electrically driven compressor if measurement of input power to compressor is carefully considered. This standard can also be used for measuring systems that include the entire air handling system if air side pressure drop for the entire vehicle system is carefully considered. This standard can also be used for measuring systems that include the entire front end cooling module if air side pressure drop for the entire vehicle system is carefully considered. This standard can also be used for measuring systems that include a secondary cooling loop if the power to drive the pumps in this system is carefully considered. This Standard specifies procedures, apparatus, and instrumentation that will produce accurate steady state capacity and efficiency data for refrigerant components. This Standard does not: Specify tests for dual evaporator systems; Specify transient test methods; Make recommendations for safety; Specify tests for production, specification compliance, or field testing of mobile air conditioning systems. This Standard provides a method of testing the capacity (performance) and efficiency (COP) of mobile air conditioning refrigerant systems under steady state conditions. The procedure proposed is designed to give maximum repeatability and minimum error in determining cooling capacity (Q) and efficiency (COP - Coefficient of Performance) of the refrigeration system of the mobile air conditioner. For that reason a "breadboard" type facility is proposed in which components are assembled into a system and exposed to operating conditions in individual, separately controlled chambers. The facility should allow for three methods to determine system performance: refrigerant side, airside, and calorimetric chambers. Each side yields its own energy balance calculation to find the capacity of the system. With the three methods used, instead of two as typically required, redundancy will be maintained even when the evaporator refrigerant exit is two phase. In this case only the airside and chamber balances are available. The design should be made so that two independent methods could provide agreement of less than +/-4.0% between two independent balances.

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