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A heat transfer correlation for the suction and compression chambers of scroll compressors

机译：涡旋式压缩机抽吸和压缩室的传热相关性

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摘要

Heat transfer in the suction and compression chambers of scroll compressors has not been sufficiently studied and typical correlations available in the literature are based on simplified flow conditions. This paper presents the results of a model developed to predict fluid flow and heat transfer inside the suction and compression chambers of scroll compressors. Due to the particular geometry of scroll compressors, an algorithm was developed to adapt the computational mesh automatically for each orbiting angle. Convective heat transfer is strongly affected by the flow in the near-wall region and for this reason a low-Reynolds-number turbulence model was adopted in the simulations. The study covered a wide range of operating conditions and geometric parameters, allowing the proposal of a characteristic velocity for the flow inside the suction and compression chambers and a new heat transfer correlation for scroll compressors, which is compared with other correlations adopted in the literature. (C) 2017 Elsevier Ltd and IIR. All rights reserved.
机译：涡旋式压缩机的抽吸和压缩室中的传热尚未充分研究，并且文献中可用的典型相关性基于简化的流动条件。本文介绍了开发的模型的结果，以预测涡旋式压缩机的抽吸和压缩室内的流体流动和传热。由于涡旋式压缩机的特定几何形状，开发了一种算法以适应每个轨道角度的计算网格。对热传热受到近壁区域的流动的强烈影响，因此在模拟中采用了低曲回湍流模型。该研究涵盖了各种操作条件和几何参数，允许对吸入和压缩室内的流动的特征速度提出具有涡旋压缩机的新传热相关性，这与文献中采用的其他相关性进行了比较。 （c）2017年Elsevier Ltd和IIR。版权所有。

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