《GB/T 18837-2002多联式空调(热泵)机组》标准中IPLV问题分析探讨

Discussion on IPLV in Standard《GB/T 18837-2002 Multi-connected Air-condition (Heat Pump) Unit》

《GB/T 18837-2002多联式空调(热泵)机组》中针对多联式空调(热泵)机组部分负荷能耗效能的评价参数指标IPLV的标定计算作了明确的规定,但是针对多联式空调系统有别于单台冷水机组运行特性和能效的特性,决定了IPLV的标定计算忽略了室内机作为机组系统的一部分而对系统负荷率及能效变化所构成的影响。提出多联式空调系统IPLV的计算公式理应在综合分析研究机组运行工况、系统开机率、室内机负荷均匀度、部分负荷率及对应负荷率下机组的能效比这些影响因素而综合定义给出。

In the standard of China 《GB/T 18837-2002 Multi-connected air-condition（heat pump） unit》, the index IPLV（Integrated Part Load Value） was defined specially for multi-connected air-condition（heat pump） units. However, the influence of indoor-unit as a part of the unit system on the change of part load ratio and energy efficiency ratio is ignored in the defined formula of IPLV. It is suggested that the factors should be considered in the calculation for the index IPLV of multi-connected air-condition（heat pump） units, such as working condition, indoor-unit operating ratio, uniformity of indoor-unit capacity, part road ratio and energy efficiency ratio.