喷射制冷在太阳能液体除湿系统中的应用.pdf

制冷及低温技术的发展与应用研讨会暨我国制冷及低温工程博士点20周年纪念 喷射制冷在太阳能液体除湿系统中的应用 金超柳建华张良 (上海理工大学制冷技术研究所，上海，200093) 摘要：空调新风经除湿器除湿后送入加湿器等焓加湿，由于受除湿器除湿性能和加湿器加湿效率的影响，空调 送风温度偏高。本文介绍了一套以太阳能液体除湿制冷为主，太阳能喷射制冷为辅的全新风空调系统，描述了 系统原理及流程；建立了液体除湿一喷射冷却的空调实验装置；分析比较了喷射制冷应用于除湿制冷中不同 部位的性能及可行性；在兼顾系统效率的同时解决了送风温度偏高问题；针对上海地区的气候特点，对该系统 做了实验研究，在热源温度为75℃时，送风温度19℃，系统COP可达0．7。 关键词：太阳能液体除湿喷射制冷性能分析 APPLICATIONoFEJECTORREFRIGERATIONIN DESICCANT SOLAR—LIQUID DEHUMIDIFICATIONSYSTEM Jin LiuJianhua Chao ZhangLiang of of for Scienceand (Instituterefrigeration，UniversityShanghai freshair air is Abstract：Theof humidifiedinconstant after dehumidified conditioningsystem enthalpybeing by desiccant。Theair ofthefullfreshair is to liquid supplytemperature conditioningsystemrelativelyhigh，owing the ofthedehumidifierandhumidifier．Thisintroducesafreshair unitwhichUSeS efficiency paper handling desiccantfordehumidification．assistedasolar device．The andthe solar-liquid by ejectorrefrigeration principle flowof are for desiccant is systemdescribed．Experimentalsetupliquid dehumidification--ejectorrefrigeration established．Thedifferent and oftheair is whenthe efficiencyfeasibility conditioningsystemcompared ejector deviceisusedindifferentoftheunit．ThesimulatedcalculationofCOPinthisarticleshows refrigeration places thatthe andthat air does down．Afterthe systemoperatedefficiently supplytemperaturedrop