本文从系统的COP、制冷量和有效能分析三个方面比较了跨临界CO2蒸气压缩/喷射循环、蒸气压缩/回热制冷循环和常规的蒸气压缩制冷循环的性能.结果表明,在本文研究工况下,喷射循环的性能系数最大值比回热循环高18.6%,比常规循环高22.0%.喷射循环的制冷量比回热循环高8.2%,比常规循环高11.5%.有效能分析表明喷射循环极大地减小了节流损失,冷却放热损失和压缩损失也有相应的减少.
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