Experimental and simulation study of oscillating flow in regenerator using carbon dioxide as working fluid

CHEN Xin; XIAO Gang; TONG Lianghuai; SUN Anwei; NI Mingjiang

doi:10.19666/j.rlfd.201912253

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Experimental and simulation study of oscillating flow in regenerator using carbon dioxide as working fluid

更新时间：2025-09-28

- Experimental and simulation study of oscillating flow in regenerator using carbon dioxide as working fluid
- Thermal Power Generation Vol. 49, Issue 9, Pages: 23-31(2020)
- 作者机构：
  
  1. 浙江大学能源工程学院
  2. 衢州市特种设备检验中心
- 作者简介：
- 基金信息：
- DOI：10.19666/j.rlfd.201912253
  CLC： TK122
- Published Online：15 August 2020，
  
  Published：2020
- 稿件说明：
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CHEN Xin, XIAO Gang, TONG Lianghuai, et al. Experimental and simulation study of oscillating flow in regenerator using carbon dioxide as working fluid[J]. Thermal power generation, 2020, 49(9): 23-31.
DOI：

CHEN Xin, XIAO Gang, TONG Lianghuai, et al. Experimental and simulation study of oscillating flow in regenerator using carbon dioxide as working fluid[J]. Thermal power generation, 2020, 49(9): 23-31. DOI： 10.19666/j.rlfd.201912253.

摘要

采用二氧化碳气体作为斯特林发动机内部循环工质可以实现机器长时间运行

降低成本。为探究二氧化碳工质在回热器中的流动特性

完善斯特林循环分析方法

更好地设计和优化基于二氧化碳工质的斯特林发动机

本文基于CFD方法建立了有限体积模型和振荡流模型

并搭建了振荡流实验台进行实验验证

获得了二氧化碳在金属丝网回热器中的压降、摩擦特性和流阻关联式。随后发现热吹和冷吹过程中流阻关联式的差异较大

在高雷诺数下(1 733 关键词(KeyWords)：斯特林发动机;振荡流;回热器;流动特性;循环率;二氧化碳 Abstract: Keywords: 基金项目(Foundation): 作者(Author): 陈欣

肖刚

童良怀

孙安苇

倪明江 DOI: 10.19666/j.rlfd.201912253

Abstract

Carbon dioxide is potential work media of Stirling engine for long-term running and low operating cost. To analyze the characteristics of carbon dioxide flowing in the regenerator of Stirling engine

improve the Stirling cycle analysis method

and better design and optimize the Stirling engine based on carbon dioxide

a finite volume model and an oscillating flow model are established based on the CFD method

and an oscillating flow experimental bench is established for verification to obtain the pressure drop and friction characteristics and flow resistance correlation of carbon dioxide in the wire mesh regenerator. It is found that

there is a large difference in the flow resistance correlation between the hot and cold blowing processes. The difference of flow resistance factor of carbon dioxide and air is less than 10% at high Reynolds number(1 733 Key Words： Stirling engine;oscillating flow;regenerator;flow characteristics;cycle rate;carbon dioxide Abstract: Keywords: Foundation: Authors: CHEN Xin;XIAO Gang;TONG Lianghuai;SUN Anwei;NI Mingjiang; DOI: 10.19666/j.rlfd.201912253

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Related Institution

School of Energy and Power Engineering, Xi'an Jiaotong University

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State Key Laboratory of Multiphase Flow for Power Engineering, Xi'an Jiaotong University

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