传热传质分离式太阳能吸收式制冷机实验研究  

EXPERIMENT STUDY ON SOLAR POWERED LITHIUM BROMIDE ABSORPTION CHILLER WITH HEAT AND MASS SEPARATED

作　　者：韩东[1] 阮建平[1] 梁林[1] 

机构地区：[1]南京航空航天大学能源与动力学院,南京210016

出　　处：《太阳能学报》2009年第9期1168-1172,共5页Acta Energiae Solaris Sinica

摘　　要：设计研究了小型太阳能溴化锂吸收式制冷机组,对吸收器、蒸发器、发生器均采用传热传质分离设计,通过高效板式换热器的预先冷却或加热的方法,实现了对发生过程、吸收过程、蒸发过程的传热和传质分离,达到了制冷机小型化的目的。实验研究结果显示:制冷量和COP值随太阳能热水温度升高而升高;在某个全天的测试过程中,制冷量最大为3.7kW,COP最大为0.5,日平均制冷量为2.34kW,平均COP为0.34;实验机组的电制冷系数要高于普通的电制冷空调,其平均EER达到了3.25。A minitype lithium bromide absorption chiller powered by solar energy was investigated. The new type of structure, in which the heat and mass transfer are separated, is used in the absorber, evaporator and generator through precooling or preheating the inflow before the entrances of these component according to separated and strengthen the heat and mass transfer of the processes of generation,absorption and evaporations. All these were done to reduce, the volume of the chiller. The experiment result show that the cooling capacity and COP of chiller rise with the inlet temperatures of hot water. On a whole days test, the average cooling capacity and COP are 2.34kW and 0.34, respectively; however, the maximum cooling capacity reaches up to 3.5kW when the maximum COP reaches up to 0.5. The EER of the test chiller is greater than aircondition, and the average EER is 3.25.

关 键 词：太阳能 吸收式制冷 溴化锂 绝热吸收 

分 类 号：TB611[一般工业技术—制冷工程]