| 摘要 |
PURPOSE:To make an operation below the freezing point possible and to improve the efficiency, by using an azeotropic mixture of water and trifluoroethanol as a refrigerant for absorption type refrigerator and an ether or amide compd. as an absorbent therefor. CONSTITUTION:An azeotropic mixture of water and trifluoroethanol as a refrigerant for an absorption type refrigerator and an ether, amide or alkanolamine compd. as an absorbent therefor are used. Examples of the absorbents are tetraethylene glycol dimethyl ether, dimethylformamide and ethanolamine. Since the solidifying point of the refrigerant is below 0 deg.C, the absorption type refrigerator can be operated below the freezing point. Further, since the absorbent is not crystallized out, the apparatus can be operated under wider usable conditions. The latent heat of vaporization of the refrigerant is high and hence, the coefficient of performance of the refrigerator is improved and the efficiency of the apparatus can also be improved. |
