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Optimization of a solar-driven absorption refrigerator operating between four temperature levels

机译：优化太阳能驱动的吸收冰箱在四个温度水平之间工作

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摘要

The optimal performance of the solar-driven thermodynamics cycle system consisting of a solar collector and a four-temperature-level absorption refrigerator is investigated, based on the linear heat-loss model of a solar collector and the irreversible cycle model of a four-temperature-level absorption refrigerator. A fundamental optimum relation is derived, from which the optimum operating temperature of the solar collector, the maximum overall coefficient of performance and the corresponding coefficient of performance of the four-temperature-level refrigerator are determined. It is proven that the total thermal conductance of the heat exchangers must be divided optimally between the four heat exchangers. The effects of the cycle parameters on the optimum operating temperature of the solar collector and the performance of the system are discussed by detailed numerical examples. The results obtained can describe the optimal performance of solar-driven four-temperature-level refrigerator affected simultaneously by the internal and external irreversibilities.
机译：基于太阳能收集器的线性热损耗模型和四温度的不可逆循环模型，研究了由太阳能收集器和四温度吸收冰箱组成的太阳能驱动热力学周期系统的最佳性能。 -level吸收冰箱。确定了基本最佳关系，从中获得了太阳能收集器的最佳工作温度，最大的性能系数和四温级冰箱的相应性能系数。证明热交换器的总热敏度必须在四个热交换器之间最佳地分开。详细数值示例讨论了循环参数对太阳能收集器的最佳工作温度的影响以及系统的性能。所获得的结果可以描述由内部和外部不缩义同时影响的太阳能四温度冰箱的最佳性能。

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