制冷剂配管长度对全新风风管空调热泵机组性能影响的试验研究.PDFVIP

第 23 卷第 8 期 建 　筑 　科 　学 Vol23 ,No8 2007 年 8 月 BUILDIN G SCIENCE Aug. 2007 ( ) [文章编号] 2007 ( ) 制冷剂配管长度对全新风风管空调 热泵 机组性能影响的实验研究 黄 　虎 ,李奇贺 ,袁冬雪 ,秦振春 ,张忠斌(南京师范大学 动力工程学院 , 南京 210042) ( ) [摘 　要] 本文通过进行全新风风管送风式空调 热泵 机组室内外机制冷剂配管长度对机组性能影响的实验 ,总结了机 组制冷量 、EER 、排气压力 、吸气压力 、排气温度 、制冷剂配管压降等参数随制冷剂配管长度变化的规律 ,分析了制冷剂配管长 ( ) 度对全新风风管送风式空调 热泵 机组性能影响的特点 。实验研究的结果为机组设计 、配置及工程应用提供了有价值的参 考 。 [ 关键词] 制冷剂配管 ;全新风风管机组 ;压降;实验研究 [ 中图分类号] TU8313 　　　[文献标识码] A Experimental Study on the Influence of Refrigerant Pipe Length on the Performance of Airconditioning ( Heat Pump ) Unit Equipped with Full Fresh Air Duct HUAN G Hu ,L I Qihe , YUAN Dongx ue , QIN Zhenchun , ZHAN G Zhongbin ( School of Power Engineering , N anj ing N ormal University ,N anj ing 210042 , China) [Abstract ] In this paper , based on the experimental study on the influence of indoor and outdoor unit refrigerant pipe length on the performance of airconditioning ( heat pump ) unit equipped with full fresh air duct , the variation rules of parameters , including cooling capacity , EER , discharge pressure , suction pressure , discharge temperature , refrigerant pipe pressure drop , etc . versus refrigerant pipe length were summarized. And then the characteristics of refrigerant pipe length influence on unit performance were also analyzed. The result of this study could be considered as a valuable reference to unit design , configuration and engineering application . [ Keywords ] refrigerant pipe ;full fresh air duct unit ;pressure drop ;experimental study 1 　引　言