活性炭颗粒的添加对溴化锂溶液蒸汽吸收率/制冷量的影响  

Performance of Steam Absorption Rate and Refrigeration Efficiency of LiBr Aqueous Solution added with Active Carbon Particles

作　　者：蔡杰[1] 市桥伸久[2] 板谷义纪[2] 

机构地区：[1]南京师范大学能源与机械工程学院,南京210042 [2]日本名古屋大学化学工学系名古屋464-8603

出　　处：《制冷学报》2012年第2期31-35,共5页Journal of Refrigeration

摘　　要：为强化吸收式制冷机的蒸汽吸收率及制冷效率,基于活性炭的高吸附性能,在溴化锂水溶液中添加适量活性炭颗粒形成活性炭/溴化锂悬浮液替代溴化锂水溶液作为吸收剂,通过实验研究了其蒸汽吸收率、制冷效率,分析了替代的可行性。研究表明,在活性炭添加量为0~300ng/L条件下或在0~1.5吸着平衡常数范围内,悬浮液的水蒸汽吸收量比和制冷机组的制冷量随活性炭添加量和悬浮液吸着平衡常数近似线性增长;悬浮液的粘度随活性炭添加量线性增长,随温度升高线性减小。To enhance the steam absorption rate and refrigeration efficiency of a absorption chiller,the active carbon/LiBr suspension was made up of a little active carbon particles and LiBr aqueous solution based on higher absorption performance of active carbon.The heat/mass transfer property of active carbon/LiBr suspension was studied through the experiments,and the feasibility analysis of substituting LiBr aqueous solution with active carbon/LiBr suspension in an absorption chiller was made in this paper.It is found that when the concentration of active carbon is in the range of 0~300ng/L or the adsorption equilibrium parameter is in the range of 0~1.5,there are linear increasing of absorption ration of steam and output of chiller with increment of the concentration of active carbon or adsorption equilibrium parameter,and the viscosity of active carbon/LiBr suspension linearly increase with concentration of active carbon and linearly decrease with the increase of temperature.

关 键 词：工程热物理 吸收式制冷机 蒸汽吸收率 制冷效率 活性炭/溴化锂水溶液悬浮液 水蒸汽吸收量 制冷机组制冷量 

分 类 号：TQ025.3[化学工程] TB612[一般工业技术—制冷工程]