摘要
对于工程上应用的部分负荷比(PLR)的定义和美国ASHRAE的定义的不同,利用变频多联空调的试验数据作了对比分析。结果表明,两种PLR定义值的误差在7%以内,使用工程定义的PLR,可以满足工程应用的精度要求。同时,通过比较在不同室内外空气参数条件下PLR与性能系数COP的关系,证明它们之间不存在确定的关系,指出研究两者的关系应该在确定的室内外工况下进行。
Utilizes the experimental data for the variable refrigerant volume （VRV） system to identify the PLR definition in engineering applications and that in ASHRAE handbook. The results show that the difference is within 7%, and using the former PLR definition can meet the accuracy demands in engineering applications. Meanwhile, through the comparison of PLR and COP, it is reported that no determinate relationship is found in different indoor and outdoor air conditions. It should be put under in fixed indoor and outdoor environments when the relationship between PLR and COP is the concern.
出处
《制冷与空调》
2008年第1期24-26,共3页
Refrigeration and Air-Conditioning
