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首页> 外文期刊>International Journal of Refrigeration >Exergy analysis and optimization of R600a as a replacement of R134a in a domestic refrigerator system
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Exergy analysis and optimization of R600a as a replacement of R134a in a domestic refrigerator system

机译：R600a在家用冰箱系统中替代R134a的火用分析和优化

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Exergy analysis was applied to investigate the performance of a domestic refrigerator originally manufactured to use 145 g of R134a. It was found that the highest exergy destruction occurred in the compressor followed by the condenser, capillary tube, evaporator, and superheating coil. Taguchi method was applied to design experiments to minimize exergy destruction while using R600a. Taguchi parameters were selected by the obtained results from R134a and an experiment using 60 g of R600a, which indicated similar results as R134a. Based on the outcomes, R600a charge amount, condenser fan rotational velocity and compressor coefficient of performance were selected for the design. The analysis of variance results indicated that R600a charge amount was the most effective parameter. At the optimum condition, the amount of charge required for R600a was 50 g, 66% lower than R134a one, which not only brings economic advantages, but also significantly reduces the risk of flammability of the hydrocarbon refrigerant.
机译：用能值分析法研究了最初使用145克R134a制造的家用冰箱的性能。发现最大的本能破坏发生在压缩机中，其次是冷凝器，毛细管，蒸发器和过热盘管。使用Taguchi方法进行设计实验时，最大程度地减少了使用R600a时的火用破坏。通过从R134a获得的结果和使用60 g R600a进行的实验选择田口参数，这表明与R134a相似的结果。根据结果​​，选择R600a充气量，冷凝器风扇转速和压缩机性能系数进行设计。方差分析结果表明，R600a电荷量是最有效的参数。在最佳条件下，R600a所需的装料量为50 g，比R134a少66％，这不仅具有经济优势，而且还大大降低了碳氢制冷剂的可燃性风险。

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