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首页> 外文期刊>International Journal of Heat and Mass Transfer >A method of improving the effectiveness of a mechanical vapour compression process and of its applications in refrigeration
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A method of improving the effectiveness of a mechanical vapour compression process and of its applications in refrigeration

机译：一种提高机械蒸汽压缩工艺效率的方法及其在制冷中的应用

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The work proposes a thermodynamic method for increasing the effectiveness of the polytropic and adi-abatic compression processes. The method is further used for improving the COP of the compression refrigeration cycles. The method theory is considered. A theorem proved here shows that ideal method application leads to the isothermal compression operation. The method application is illustrated by schemes running with single, two-stage and multi-stage compression, for the air conditioning, normal and industrial refrigeration. According to the proposal, the compression refrigeration should stimulate the compressor operation with high temperature discharge gas and the conversion of its heat into work, rather than using an additional compression work for limiting the discharge gas temperature, as it is happening today in the two-and multi-stage refrigeration. The schemes' operation has been modelled. The model results emphasize a reasonable feasibility of the single-stage, but the three-stage and especially the two-stage compression are the most feasible, enjoying a great potential in the refrigeration COP increase, and therefore in the primary energy savings and carbon footprint reduction (~50-100% and more).
机译：这项工作提出了一种热力学方法来提高多变和绝热压缩过程的有效性。该方法还用于改善压缩制冷循环的COP。考虑方法论。一个定理在这里证明，理想的方法应用导致等温压缩操作。该方法的应用以单级，两级和多级压缩运行的方案进行了说明，用于空调，常规制冷和工业制冷。根据建议，压缩制冷应通过高温排气和将其热量转化为功来刺激压缩机的运行，而不是像今天在两种情况下那样，通过额外的压缩功来限制排气温度。和多级制冷。方案的操作已建模。模型结果强调了单级压缩的合理可行性，但三级压缩，尤其是两级压缩是最可行的，在制冷COP增加，因此在一次能源节省和碳足迹方面具有巨大潜力减少（约50-100％或更多）。

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