摘要
以CaCl2为吸附剂、NH3为制冷剂,将CaCl2分别与CaSO4、水泥按质量比4∶1进行复配,组成吸附式制冷工质对,通过实验研究了工质对的吸附制冷性能.结果表明:温度是过程的控制因素,在110℃时,CaCl2/CaSO4复合吸附剂的单位脱胶凝剂基吸附制冷量是CaCl2的1.48倍,是CaCl2/水泥的1.96倍.文中还对吸附剂的比表面积及孔结构进行了表征,发现CaCl2/CaSO4复合吸附剂的孔结构保持较好,制冷性能得到改善.
Calcium chloride was respectively added in calcium sulphate and cement with a mass fraction of 20% to produce two new working pairs for adsorption refrigeration, with CaCl2 as the adsorbent and with NH3 as the refrigerant. Then, the refrigeration characteristics of the working pairs were experimentally investigated. The results show that temperature is the control factor of the refrigeration process, and that, at 110 ℃, the refrigeration capacity per unit adsorbent of CaCl2/CaSO4 is 1.48 times that of CaCl2 and 1.96 times that of calcium chloride/cement. More-over, from the determination of specific surface area and pore structure of the adsorbents, it is found that the composite CaCl2/CaSO4 adsorbent maintains good pore structure and is of excellent refrigeration capacity.
出处
《华南理工大学学报（自然科学版）》
EI
CAS
CSCD
北大核心
2008年第7期72-76,共5页
Journal of South China University of Technology(Natural Science Edition)
关键词
氯化钙
复合吸附剂
吸附制冷
吸附等温线
比表面积
calcium chloride
composite adsorbent
adsorption refrigeration
adsorption isotherm
specific surface area
