Examination of Stirling engine parameters effect on its thermal efficiency using PROSA software

IF 1.1 4区工程技术 Q4 THERMODYNAMICS

Thermal Science Pub Date : 2023-01-01 DOI:10.2298/tsci220617139r

Louiza Rabhi, H. El, N. Boutammachte, A. Khmou

引用次数: 0

Abstract

This paper uses second-order software for evaluating five Stirling engine parameter?s effect on its performance to select an appropriate configuration with optimal dimensions for its use in a concentrated solar power plant. Appropriate configuration, heater shape, bundle tube heat exchanger size, and regenerator type and geometry are studied. Results show that Alpha type Stirling engine is the most suitable for high-temperature differences, U-shaped tubes are advantageous in combining good efficiency and fewer pressure losses. Shortening inner diameter and increasing U-shaped tubes number is a good strategy to increase engine efficiency also an increase in tubes length generates a reduction in engine efficiency. Regarding the regenerator, the wire mesh regenerator presents a good compromise between minimum pressure drop and heat losses and provides better engine efficiency. For its size, better efficiency is obtained for a thicker mesh.

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利用PROSA软件研究斯特林发动机参数对热效率的影响

本文采用二阶软件对斯特林发动机的五项参数进行了求解。为其在聚光太阳能电站中的应用选择合适的结构和最优的尺寸。研究了适当的结构、加热器形状、束管换热器尺寸、蓄热器类型和几何形状。结果表明，α型斯特林发动机最适合高温差，u型管具有效率高、压力损失小的优点。缩短内径和增加u型管数是提高发动机效率的良好策略，但增加管长会降低发动机效率。在蓄热器方面，钢丝网蓄热器在最小压降和热损失之间取得了很好的折衷，并提供了更好的发动机效率。对于其尺寸，越厚的网孔效率越高。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Thermal Science 工程技术-热力学

CiteScore

2.70

自引率

29.40%

发文量

399

审稿时长

5 months

期刊介绍： The main aims of Thermal Science to publish papers giving results of the fundamental and applied research in different, but closely connected fields: fluid mechanics (mainly turbulent flows), heat transfer, mass transfer, combustion and chemical processes in single, and specifically in multi-phase and multi-component flows in high-temperature chemically reacting flows processes present in thermal engineering, energy generating or consuming equipment, process and chemical engineering equipment and devices, ecological engineering, The important characteristic of the journal is the orientation to the fundamental results of the investigations of different physical and chemical processes, always jointly present in real conditions, and their mutual influence. To publish papers written by experts from different fields: mechanical engineering, chemical engineering, fluid dynamics, thermodynamics and related fields. To inform international scientific community about the recent, and most prominent fundamental results achieved in the South-East European region, and particularly in Serbia, and - vice versa - to inform the scientific community from South-East European Region about recent fundamental and applied scientific achievements in developed countries, serving as a basis for technology development. To achieve international standards of the published papers, by the engagement of experts from different countries in the International Advisory board.