Investigation of the flow conditions in a high-performance heat exchanger

Archives of Thermodynamics

Stanis?aw ?opataDivision of Power Engineering, Cracow University of Technology, al. Jana Paw?a II 37, 31-864 Kraków, PolandOther articles by this author:De Gruyter OnlineGoogle Scholar¹  Pawe? Oc?oñDivision of Power Engineering, Cracow University of Technology, al. Jana Paw?a II 37, 31-864 Kraków, PolandOther articles by this author:De Gruyter OnlineGoogle Scholar¹ 

[1] Division of Power Engineering, Cracow University of Technology, al. Jana Paw?a II 37, 31-864 Kraków, Poland

关键词: Keywords: Heat exchange;    Failure;    Computational simulation;   

DOI  :  10.2478/v10173-010-0013-x

学科分类：能源（综合）

来源: Polska Akademia Nauk * Oddzial w Gdansku, Instytut Maszyn Przeplywowych / Polish Academy of Sciences, Institute of Fluid-Flow Machinery

【 摘 要 】

CFD (Computational Fluid Dynamics) computations are carried out in order to investigate the flow distribution and its influence on the heat transfer processes in the high-performance heat exchanger. The subject of this investigation is the classical model of the high-performance heat exchanger with elliptical tubes and rectangular fins. It is possible to find the flow domains where the heat transfer conditions are impaired due to the fully developed turbulent flow. Therefore, the considerable thermal loads occur that may cause the breakdown of the heat exchanger. The emphasis of this investigation is put on the zones and the locations where the tubes are not properly fed with liquid, that result in occurrence of cavitation.

【 授权许可】

Unknown