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首页> 外文期刊>International Journal of Exergy >Performance characteristics of a novel ejector-expansion transcritical CO2 refrigeration cycle with gas cooler exergy utilisation
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Performance characteristics of a novel ejector-expansion transcritical CO2 refrigeration cycle with gas cooler exergy utilisation

机译：带有气体冷却器火用的新型喷射器-膨胀跨临界CO2制冷循环的性能特征

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摘要

In this paper, a novel configuration of ejector-expansion transcritical CO2 (TRCC) refrigeration cycle was presented. A gas cooler exergy was utilised by a supercritical CO2 power cycle to enhance the performance of the presented cycle. Theoretical analysis on the performance characteristics was carried out for the cycle on the basis of the first and second laws of thermodynamics. A parametric study was also conducted to optimise the performance of plant, under various operating conditions. It was found that the coefficient of performance and second-law efficiency of the presented cycle are on average 7.5-28% higher than those of the conventional ejector-expansion TRCC refrigeration cycle. It was concluded that this cycle could be recognised as a promising refrigeration cycle from the thermodynamic and technical point of views.
机译：在本文中，提出了一种新型的喷射器-膨胀式跨临界CO2（TRCC）制冷循环。超临界CO2功率循环利用了气体冷却器的火用，以增强所提出的循环的性能。在热力学第一定律和第二定律的基础上，对循环的性能特征进行了理论分析。还进行了参数研究，以优化各种操作条件下的工厂性能。已经发现，所提出的循环的性能系数和第二律效率平均比常规的喷射器-膨胀TRCC制冷循环的系数高7.5-28％。结论是，从热力学和技术的观点来看，该循环可以被认为是有希望的制冷循环。

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