Analysis of Liquid-Flooded Expansion Using a Scroll Expander
Analysis of Liquid-Flooded Expansion Using a Scroll Expander
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使用涡旋膨胀机的液淹膨胀分析
DOI：
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发表时间：
2008
期刊：
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通讯作者：
J. Braun
中科院分区：
文献类型：
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作者：
V. Lemort;I. Bell;E. Groll;J. Braun
摘要 本文介绍了 Hugenroth (2007) 提出的集成到液体淹没爱立信冷却器 (LFEC) 中的涡旋膨胀机模型的开发和实验验证。该系统使用压缩机和膨胀机的液流来实现等温压缩和膨胀过程。已经构建了满液式涡旋膨胀机的详细模型，可以预测其在各种操作条件下的性能。该模型通过在液体淹没式爱立信冷却器原型上收集的实验数据进行了验证。最后进行了参数研究，以研究膨胀机在不同设计变化下的性能，例如涡旋尖端的形状和泄漏间隙尺寸。 1. 简介 目前工作的目的是开发和验证集成到液体淹没式爱立信冷却器 (LFEC) 中的涡旋膨胀机的综合模型。该系统使用压缩机和膨胀机的液流来实现等温压缩和膨胀过程。该模型必须足够详细，以研究膨胀机在不同操作条件和设计变化下的性能，并指出淹没膨胀中发生的损失。
ABSTRACT This paper presents the development and the experimental validation of a model of a scroll expander integrated into a Liquid Flooded Ericsson Cooler (LFEC) as proposed by Hugenroth (2007). This system uses liquid flooding of the compressor and the expander to approach isothermal compression and expansion processes. A detailed model of the flooded scroll expander has been constructed which allows prediction of its performance over a wide range of operating conditions. This model is validated with experimental data collected on a prototype of a Liquid Flooded Ericsson Cooler. A parametric study is finally conducted for investigating the performances of the expander under different design changes, such as the shape of the tip of the scroll and the leakage gap size. 1. INTRODUCTION The purpose of the present work is to develop and validate a comprehensive model of a scroll expander integrated into a Liquid Flooded Ericsson Cooler ( LFEC ). This system uses liquid flooding of the compressor and the expander to approach isothermal compression and expansion processes. The model must be detailed enough to investigate the performances of the expander under different operating conditions and design changes and to point out the losses that occur in flooded expansion.