TFE-TEGDME-He扩散-吸收式制冷系统实验研究

摘要

An experimental study on a water-cooled diffusion-absorption refrigeration (DAR) machine working with TFE (2,2,2-Trifluoroethanol) as refrigerant,TEGDME (Tetraethylene Glycol Dimethyl Ether) as absorber and helium as the auxiliary inert gas was presented.It was found that when the heating temperature reaches 112 ～ 135 ℃,the averaged cooling capacity is about 0.32kW with a maximum value of 0.58kW.The actual heat transfer coefficient of each heat exchanger component is obtained,which is very helpful for further development of the DAR system with kW-level cooling capacity.%建立了一套以TFE(三氟乙醇)为制冷剂,TEGDME(二甲醚四甘醇)为吸收剂,He(氦气)为压力平衡剂的水冷式扩散-吸收制冷系统,并进行实验研究.结果表明,当热水温度达到112～135℃时,机组可正常制冷,平均制冷功率约0.32kW,最大达0.58kW;同时获取了各换热器的实际传热系数,为kW级扩散-吸收式制冷机组的设计提供理论基础.