A 1D model to predict ejector performance at critical and sub-critical operational regimes
A 1D model to predict ejector performance at critical and sub-critical operational regimes
复制标题
用于预测临界和亚临界运行状态下喷射器性能的一维模型
DOI：
10.1016/j.ijrefrig.2013.04.009
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发表时间：
2013-09-01
期刊：
影响因子：
--
通讯作者：
Bartosiewicz, Yann
中科院分区：
文献类型：
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作者：
Chen, WeiXiong;Liu, Ming;Bartosiewicz, Yann
本文提出了一种新的1D模型，以预测关键和亚临界操作模式下的弹出器性能，而大多数先前的1D模型仅在关键模式操作下预测弹出器性能。假定恒定压力混合在射出器的恒定面积部分内发生在临界和亚临界模式操作下，并且模型的有效性是针对包括不同的工作流体和几何形状的四组实验数据的验证。结果表明，所提出的模型可以准确预测所有操作范围内的喷射器性能，并且是预测较大制冷循环模型中喷射器性能的有用工具。 （c）2013 Elsevier Ltd和IIR。版权所有。
This paper proposes a new 1D model to predict ejector performance at critical and subcritical operational modes, while most previous 1D models have only predicted ejector performance at critical mode operation. Constant pressure mixing is assumed to occur inside the constant area section of the ejector at critical and sub-critical mode operation, and the effectiveness of the model is verified against four sets of experimental data that include different working fluids and geometries. The results show that the proposed model accurately predicts ejector performance over all ranges of operation, and is a useful tool for predicting ejector performance within larger refrigeration cycle models. (C) 2013 Elsevier Ltd and IIR. All rights reserved.