摘要
研究了空气流量、相对湿度及有无热管条件下,闭式热泵干燥系统的单位能耗除湿量(specific moisture extraction rate,SMER)的变化趋势。结果表明:热管对SMER的影响极为显著,试验条件下,热管的应用使得系统SMER增加20%~200%;保持温度和相对湿度不变,空气流量在0.2~0.4kg/s,系统的SMER具有最大值;保持空气流量和温度不变,相对湿度的变化对SMER影响最为显著,相对湿度从25%增加至75%,有热管系统的SMER从1.4~1.6增加至4.1~4.3,而无热管系统SMER从1.1增加至3.0~3.1。
It was studied the performance characteristics such as specific moisture extraction rate(SMER)of closed heat pump drying system with the condition of different air mass-flow-rate,relative humidity and with or without heat pipe.The results showed that the effects of heat pipe on SMER of closed heat pump drying system were very significant,and the application of heat pipe could enhance the system SMER by 20%~200%under test conditions.Under the condition of the constant temperature and constant relative humidity,the SMER of the system had a maximum value while the air mass-flow-rate was between 0.2~0.4 kg/s.With constant air mass-flow-rate and constant air temperature,the change of relative humidity had the most significant effect on SMER.While relative humidity increased from 25%to75%,the SMER of closed system with heat pipe enhanced from1.4~1.6 to 4.1~4.3,but the SMER without heat pipe from 1.1 to 3.0~3.1.
作者
曾文良
陈柏霖
陈萱
揭雪飞
ZENG Wen-liang;CHEN Bo-ling;CHEN Xuan;JIE Xue-fei(Guangdong Industry Polytechnic,Guangzhou,Guangdong 510300,China)
出处
《食品与机械》
北大核心
2020年第11期101-104,共4页
Food and Machinery
基金
广东省自然科学基金(编号:2015A030313747)。
作者简介
曾文良(1969-),男,广东轻工职业技术学院副教授,博士。E-mail:563274029@qq.com。
