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首页> 外文期刊>Science in China. Series E, Technological sciences >Evaluation of zeotropic refrigerants based on nonlinear relationship between temperature and enthalpy
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Evaluation of zeotropic refrigerants based on nonlinear relationship between temperature and enthalpy

机译：基于温度和焓的非线性关系评估共沸制冷剂

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摘要

In order to evaluate cycling characters of zeotropic refrigerants in air-conditioning operation, and to reveal distribution rules of temperature difference between refrigerants and heat transfer fluids in condenser and evaporator, theoretical researches were carried out based on nonlinear relationship between temperature and enthalpy in period of refrigerants' phase change. Firstly, a phase changing model of refrigerants was built, and refrigerants state parameters were decided in the air-conditioning operation. Secondly, the state equation of refrigerants was applied for computing relationship between temperature and enthalpy, else based on some suppositions, temperature differences between 15 sorts of refrigerants and heat-transfer fluids were gotten too. Through concluding those temperature differences changing in condenser and evaporator, some rules were found. Lastly, after calculating and comparing the additive exergy loss among 15 sorts of refrigerants, which resulted from the changing of temperature difference, their cycling characters evaluation were presented.
机译：为了评估共沸制冷剂在空调运行中的循环特性，揭示冷凝器和蒸发器中制冷剂与传热流体之间的温差分布规律，基于温度与焓的非线性关系进行了理论研究。制冷剂的相变。首先，建立了制冷剂的相变模型，并确定了空调运行中的制冷剂状态参数。其次，利用制冷剂状态方程计算温度与焓的关系，并基于一些假设，得出了15种制冷剂与传热流体之间的温差。通过总结冷凝器和蒸发器中的温差变化，找到了一些规则。最后，在对15种制冷剂因温差变化而引起的附加能值损失进行了计算和比较后，提出了其循环特性的评价方法。

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