吸附制冷过程的热力学分析及评价

Thermodynamical Analysis and Evaluation on the Process of Adsorption

运用热力学原理对吸附制冷过程进行了全面分析 ,推导出了各过程的热力计算公式 ,并在此基础上得出了性能系数 COP的表达式。同时也探讨了系统的各个工作温度对循环性能的影响。结果表明 ,在吸附制冷过程中 ,适当地降低冷凝温度、蒸发温度和吸附温度 ,同时适当地提高脱附温度 ,可以提高系统的循环性能。

The article analyzed the process of adsorption comprehensively using the principle of thermodynamics and deduced the formula of thermodynamic calculation of each process. On the basis, the expression of coefficience of performance was educed. It also discussed the effect of the working temperatures on the cyclic performance. The results showed that the cyclic performance of the adsorption refrigeration can be improved by reducing the condensation temperature, the evaporation temperature and the adsorption temperature and enhancing the desorption temperature.