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吸收式制冷机具有可使用低温热源的特点,但其应用目前还不很广。本文定义了吸收式制冷机的理论循环,讨论了热源温度的最低限值,探讨了提高热力系数的途径,并介绍了实际循环与理论循环的差异等。文中说明了低温热源与余热的几种利用方法,诸如太阳能与柴油机余热的不同利用方法。文中特别介绍了吸收式热泵,这种热泵能将无用的低温热源转换成有用的高温热源,文中论述了这种热泵的性能。同时还介绍了制冷机应用于冷冻、冷却以外的可能性。
Absorption refrigerators have the characteristics of low-temperature heat source, but its application is not yet widely used. In this paper, the theoretical cycle of absorption chiller is defined. The minimum temperature of heat source is discussed. The way to increase the thermal coefficient is discussed. The difference between actual cycle and theoretical cycle is also introduced. The paper describes several methods of using low-temperature heat sources and waste heat, such as different utilization methods of solar heat and diesel engine waste heat. In this paper, an absorption heat pump is introduced in particular, which can transform useless low-temperature heat sources into useful high-temperature heat sources. The paper discusses the performance of this kind of heat pump. At the same time also introduced the refrigerator used in freezing, cooling other than the possibility.