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多变环境条件下家用空调器性能的实验研究
金听祥,时子超
0
(郑州轻工业学院能源与动力工程学院)
摘要:
通过改变室外干球温度和相对湿度,分别对家用空调器进行制冷和制热性能实验。同时引入相对制冷量比率(RRCP)、相对制热量比率(RHCP)、相对功率比率(RPP)和相对能源消耗比率(RECP)性能指标,分析实测性能与铭牌参数之间的关系。结果表明:室外侧相对湿度的变化对家用空调器性能影响较小。在制冷工况下,室外干球温度由24 ℃升高到43 ℃,RRCP由16.5%减小到﹣13.2%,RPP由﹣4.8%增大到24%,RECP由22.2%减小到﹣30%,因此当室外干球温度低于铭牌参数对应的设计温度时,RECP为正偏差,空调器性能优良;当室外干球温度高于铭牌参数对应的设计温度时,RECP为负偏差,空调器性能低劣,不利于空调器节能。在制热工况下,室外干球温度由﹣6 ℃升高到16 ℃,RHCP由﹣34%增大到14%,RRP由﹣24%增大到﹣2%,RECP由﹣13%增大到16.9%,因此当室外干球温度低于铭牌参数对应的设计温度时,RECP为负偏差,空调器性能低劣;当室外干球温度高于铭牌参数对应的设计温度时,RECP为正偏差,空调器性能优良,有利于空调器节能。
关键词:  空调器  实验工况  铭牌参数  能效比  性能系数
DOI:
投稿时间:2017-01-13    
基金项目:
Experimental Study on the Performance of Household Air Conditioner under Variable Environmental Conditions
Jin Tingxiang,Shi Zichao
(School of Energy & Power Engineering,Zhengzhou University of Light Industry)
Abstract:
The refrigeration and heating performance of an air conditioner were tested by changing the outdoor environment temperature and relative humidity. The relative refrigerating capacity percentage (RRCP), relative heating capacity percentage (RHCP), relative power percentage (RPP), and relative energy consumption percentage (RECP) are introduced to establish the relationship between the measured performance and rated parameters. The results show that the variation in outdoor relative humidity has little effect on the performance of the air conditioner. However, under the cooling conditions, the outdoor dry-bulb temperature increased from 24 to 43 ℃, RRCP decreased from 16.5% to ﹣13.2%, RPP increased from ﹣4.8% to 24%, and RECP decreased from 22.2% to ﹣30%. When the outdoor dry-bulb temperature is lower than the corresponding temperature of rated case, RECP exhibits a positive deviation, and the performance of air conditioner is excellent. When the outdoor dry-bulb temperature is higher than the corresponding temperature of rated case, RECP exhibits a negative deviation, and the performance of the air conditioner is bad, indicating wasted energy. Under the heating condition, when the outdoor dry-bulb temperature increased from ﹣6 to 16 ℃, RHCP increased from ﹣34% to 14%, RRP increased from ﹣24% to ﹣2%, and RECP increased from ﹣13% to 16.9%. When the outdoor dry-bulb temperature is lower than the corresponding temperature of rated case, RECP exhibits a negative deviation, and the performance of the air conditioner is poor; when the dry-bulb outdoor temperature is higher than the corresponding temperature of rated case, RECP exhibits a positive deviation, and the performance of the air conditioner is excellent, which is conducive to saving energy.
Key words:  air conditioner  test conditions  rated parameter  energy efficiency ratio  coefficient of performance

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