对房间空调器室内侧空气试验工况值27℃DB/19℃WB的探讨

Indoor Air Condition 27 ℃DB/ 19 ℃WB in Room Air Conditioner Test

针对南方湿热地区是我国夏季住宅房间空调器耗能的主要地区及空调器节能研究的重点地区,讨论了在现有国家标准所规定的室内侧空气试验工况值27℃DB/19℃WB下所设计的房间空调器在湿热地区使用时室内相对湿度偏高的原因,分析了设计进风空气参数对空调器设计的影响,以北京、广州两城市为例选取某型号压缩机进行的不同室内侧空气设计工况下房间空调器的能效比对比表明,以26℃DB/20℃WB作为室内侧空气设计工况可以更好地适应南方湿热气候条件对房间空调器的性能要求,设计的房间空调器具有更小的设备显热比和更高的能效比,建议修订房间空调器国家标准,考虑不同地区的气候差异对室内侧空气试验工况值做出不同的规定以促进房间空调器节能工作的开展。

In China, room air conditioners （RA Cs） in residential buildings use large amount of energy. The hot and humid south China area is the major region of RA C energy consumption and also the key area of RA C energy saving study. The reason of higher indoor relative humidity when using RA C designed in condition of indoor air 27 ℃DB/19 ℃WB specified in current national standard was discussed, the effect of indoor air condition on RA C design was also analyzed, two RA Cs equipped with specific model com- pressor used in Beijing and Guangzhou were theoretically designed, and the energy efficiency ratios were calculated, EER comparison showed that RA C designed in 26 ℃ DB/20 ℃WB indoor air condition had smaller equipment sensible heat ratio and higher energy efficiency ratio, it was more proper for hot and humid climate area, It was suggested that indoor air conditions in RA C national standard should be modified according to different climate to save RA C energy consumption.