风冷多联式空调(热泵)机组制热季节性能系数评价方法优化

Optimization on HSPF evaluation method for air-cooledmulti-connected air-condition (heat pump) unit

分析GB/T 18837—2015《多联式空调(热泵)机组》及GB 21454—2021《多联式空调(热泵)机组能效限定值及能效等级》的制热季节性能系数评价方法,指出标准存在2个主要问题:试验工况与制热季节负荷特征的偏离,试验及计算框架对气候分区适应性不足,并针对性地提出优化评价方法。该研究有助于提高风冷多联式空调(热泵)机组制热季节性能系数计算精度,拓宽评价方法的应用范围,为标准的修订提供参考思路。

The heating seasonal performance factor evaluation method,regulated by GB/T 18837-2015 Multi-connected air-condition(heat pump)unit and GB 21454-2021 Minimum allowable values of the energy efficiency and energy efficiency grades for multi-connected air-condition(heat pump)units,is analyzed.Two main issues of the standards are pointed out,which are the deviations of test conditions with the load characteristics in heating season,and the poor adaptability of test and calculation frame to climate classification,meanwhile the optimal evaluation methods are put forward.This study helps to enhancing the calculation accuracy of the heating seasonal performance factor(HSPF)of air-cooled multi-connected air-condition(heat pump)unit,as well as boosting employment range,providing reference for future standard revision.