Computational analysis of external heat transfer for a tubular Stirling convertor

被引：14

作者：

Solomon, Laura ^{[1
]}

Qiu, Songgang ^{[1
]}

机构：

[1] West Virginia Univ, Dept Mech & Aerosp Engn, Morgantown, WV 26506 USA

来源：

APPLIED THERMAL ENGINEERING | 2018年 / 137卷

基金：

美国能源部;

关键词：

Stirling engine; Diffuser; Regenerator; Additive manufacturing; Renewable energy; Flow guides; SPACE POWER-SYSTEMS; WOVEN WIRE MATRIX; REGENERATOR; OPTIMIZATION;

D O I：

10.1016/j.applthermaleng.2018.03.070

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

Stirling convertors are an ideal choice for use in numerous energy conversion applications owing to their simplistic design, fuel independence, and robustness. The use of additive manufacturing allows for significant improvements in the overall system efficiency by removing the design limitations of traditional manufacturing techniques. This allows for the design of a novel burner-heater head interface that can vastly improve the external heat transfer. A numerical analysis of the combustion flow over an additively manufactured tubular heater head was conducted. It was shown that the use of flow guides improves the velocity distribution of the combustion gases over the heat acceptor tubes. Additionally, the use of a diffuser plate can be employed to further improve the heat transfer. The developed model can be used further to optimize the overall design of the heat acceptor, regenerator, and heat rejecter.

引用

页码：134 / 141

页数：8

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