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Thermodynamic Performance Limit and Evaporator Design Considerations for NARM-Based Domestic Refrigerator-Freeze Systems.

机译:基于NaRm的家用冰箱冷冻系统的热力性能极限和蒸发器设计考虑因素。

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摘要

The paper gives results of an investigation of non-azeotropic refrigerant mixtures (NARMs) for a two-temperature-level heat exchange process found in a domestic refrigerator-freezer. Ideal (constant air temperature) heat exchange processes are assumed. The results allow the effects of intercooling between the evaporator refrigerant stream and the condenser outlet stream to be examined systematically. Three refrigerant pairs, R22/R142b, R22/R123, and R32/R142b, were studied, but the results for only R22/R123 are presented because of its unique temperature glide curvature. Practical implementation of a Lorenz cycle constrains evaporator design. An evaporator module design is presented which meets the NARM system constraints.

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