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Experimental and computational studies on a steam jet refrigeration system with constant area and variable area ejectors

机译:具有恒定面积和可变面积喷射器的蒸汽喷射制冷系统的实验和计算研究

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This paper first presents the results from an experimental study of a conventional steam jet ejector refrigeration system and compares the performance with the computational fluid dynamics (CFD) results of the same. Secondly, it describes a method of developing a variable area supersonic ejector and presents experimental results of the operating performance of the variable area ejector over the same operating conditions. The two ejectors were experimentally tested for boiler temperatures below 120 ℃ and an evaporator temperature below 15 ℃. It was found that the steam jet refrigeration system can operate with stability at low boiler temperatures of around 90 ℃ and supersonic ejector can enhance the performance of the refrigeration system by eliminating the shock from the ejector.
机译:本文首先介绍了常规蒸汽喷射喷射器制冷系统的实验研究结果,并将其性能与该系统的计算流体动力学(CFD)结果进行了比较。其次,它描述了开发可变面积超音速喷射器的方法,并给出了在相同工况下可变面积超音速喷射器的工作性能的实验结果。对这两个喷射器进行了锅炉温度低于120℃和蒸发器温度低于15℃的实验测试。研究发现,蒸汽喷射制冷系统可以在90℃左右的低锅炉温度下稳定运行,而超音速喷射器可以消除喷射器的冲击,从而提高制冷系统的性能。

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