Traditional air conditioner used to be in local control mode. However, with the development of modern information technology, the control of air conditioner will have to support many more functions. As a first step ...Traditional air conditioner used to be in local control mode. However, with the development of modern information technology, the control of air conditioner will have to support many more functions. As a first step in such a development, we have implemented a remote monitoring system of unitary air conditioners, using the manufacturing message specification (MMS). MMS is an OSI application protocol designed for the remote control and monitoring of real devices. The functions supported are those that an operator would do normally at the console of the unitary air conditioner. Due to the accomplishment of UMCS (Unitary air conditioner MMS Control System), there will be a leap of the application of MMS and the control technology of unitary air conditioner.展开更多
对美国IEER标准进行详细介绍。美国标准ANSI/AHRI Standard 340/360-2007给出IEER的定义为:它是用于评价工商用单元式空调机和热泵设备部分负荷能效的单一数值的指标,它的计算是基于被测设备在不同负荷工况下加权的EER。该标准还规定IEE...对美国IEER标准进行详细介绍。美国标准ANSI/AHRI Standard 340/360-2007给出IEER的定义为:它是用于评价工商用单元式空调机和热泵设备部分负荷能效的单一数值的指标,它的计算是基于被测设备在不同负荷工况下加权的EER。该标准还规定IEER评价指标于2010年1月1日起替代IPLV指标作为对于制冷量≥19kW(65Btu/h)的商业和工业用单元式空调机及热泵设备的评价指标。分析美国标准中商用单元式空调机与热泵设备的评价指标从IPLV改变为IEER的原因。从4个方面比较IEER和IPLV的区别。在新标准的测试条件下,IEER指标可促进生产厂家开发高效压缩机,推动系统换热器匹配和部分负荷下的优化等。这些经验可供我国制定相关标准时借鉴。展开更多
文摘Traditional air conditioner used to be in local control mode. However, with the development of modern information technology, the control of air conditioner will have to support many more functions. As a first step in such a development, we have implemented a remote monitoring system of unitary air conditioners, using the manufacturing message specification (MMS). MMS is an OSI application protocol designed for the remote control and monitoring of real devices. The functions supported are those that an operator would do normally at the console of the unitary air conditioner. Due to the accomplishment of UMCS (Unitary air conditioner MMS Control System), there will be a leap of the application of MMS and the control technology of unitary air conditioner.
文摘对美国IEER标准进行详细介绍。美国标准ANSI/AHRI Standard 340/360-2007给出IEER的定义为:它是用于评价工商用单元式空调机和热泵设备部分负荷能效的单一数值的指标,它的计算是基于被测设备在不同负荷工况下加权的EER。该标准还规定IEER评价指标于2010年1月1日起替代IPLV指标作为对于制冷量≥19kW(65Btu/h)的商业和工业用单元式空调机及热泵设备的评价指标。分析美国标准中商用单元式空调机与热泵设备的评价指标从IPLV改变为IEER的原因。从4个方面比较IEER和IPLV的区别。在新标准的测试条件下,IEER指标可促进生产厂家开发高效压缩机,推动系统换热器匹配和部分负荷下的优化等。这些经验可供我国制定相关标准时借鉴。
