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首页> 外文期刊>MATEC Web of Conferences >Assessing Energy Efficiency of Compression Heat Pumps in Drying Processes when Zeotropic Hydrocarbon Mixtures are Used as Working Agents
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Assessing Energy Efficiency of Compression Heat Pumps in Drying Processes when Zeotropic Hydrocarbon Mixtures are Used as Working Agents

机译：使用共沸碳氢化合物混合物作为工作介质时评估干燥过程中压缩热泵的能效

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摘要

Presents the results of studies of innovative materials in the field of renewable energy.The paper proposes a design and a formula for assessing energy efficiency of the heat pump air dryer, which uses zeotropic hydrocarbon mixtures of saturated hydrocarbons as a working agent and applies the principle of a counter-current heat exchanger with a variable temperature of both the working and the drying agents. Energy efficiency of the heat pump is achieved by means of obtaining a greater part of heat from renewable energy sources, in this case by cooling the air and condensing the water vapors in the heat pump. A conducted analysis identified correlations in establishing the marginal real coefficient of performance of the compression heat pump dryer running on zeotropic hydrocarbon mixtures and operating a cycle with variable temperatures of both the working and the drying agent in the evaporator and the condenser of the heat pump. According to the established correlations, the marginal real coefficient of performance of the compression heat pump dryers running on zeotropic hydrocarbon mixtures of 40 mol% of R600a and 60 mol% of R601 is 1.92 times higher than that of the same dryers running on only R600 (n-butane).
机译：介绍了可再生能源领域的创新材料的研究结果。本文提出了一种利用饱和烃的共沸烃混合物作为工作剂的热泵空气干燥器的能量效率评估设计和公式。工作剂和干燥剂的温度都可变的逆流热交换器的结构。通过从可再生能源中获取更多的热量来实现热泵的能效，在这种情况下，是通过冷却空气并冷凝热泵中的水蒸气来实现的。进行的分析确定了以下相关性：确定在共沸烃混合物上运行的压缩热泵干燥机的边际实际性能系数，以及在热泵的蒸发器和冷凝器中，工作剂和干燥剂的温度均发生变化的情况下运行循环。根据已建立的相关性，在40 mol％R600a和60 mol％R601的共沸碳氢化合物混合物上运行的压缩热泵干燥机的边际实际性能系数是仅在R600上运行的相同干燥机的边际实际系数的1.92倍（正丁烷）。

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