The influence of catchment scale on comprehensive heat transfer performance about tube fin heat exchanger in numerical calculation

The purpose of enhanced heat exchange technology is to improve the heat exchange performance of heat exchange equipment, but the increase of resistance causes the decrease of energy consumption and economic benefits. Then the comprehensive evaluation index is used to evaluate the comprehensive heat...

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Autores principales:	Hongtao Li, Shuai Zhang, Yunguang Ji, Mingxu Sun, Xudong Li, Yonggang Sheng
Formato:	article
Lenguaje:	EN
Publicado:	Elsevier 2022
Materias:	Tube-fin heat exchanger Import and export Lengthen Numerical simulation Electrical engineering. Electronics. Nuclear engineering TK1-9971
Acceso en línea:	https://doaj.org/article/aa37f3d8e94c4f0f8ba8ad2d612b0a97
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spelling	oai:doaj.org-article:aa37f3d8e94c4f0f8ba8ad2d612b0a972021-12-04T04:34:51ZThe influence of catchment scale on comprehensive heat transfer performance about tube fin heat exchanger in numerical calculation2352-484710.1016/j.egyr.2021.11.045https://doaj.org/article/aa37f3d8e94c4f0f8ba8ad2d612b0a972022-05-01T00:00:00Zhttp://www.sciencedirect.com/science/article/pii/S2352484721011902https://doaj.org/toc/2352-4847The purpose of enhanced heat exchange technology is to improve the heat exchange performance of heat exchange equipment, but the increase of resistance causes the decrease of energy consumption and economic benefits. Then the comprehensive evaluation index is used to evaluate the comprehensive heat exchange performance of heat exchange equipment. In the process of numerical simulation, there is no unified standard for the value of the catchment scale. In this paper, by changing the length of the entrance and exit of the external passage of the tube-fin heat exchanger, the change law of comprehensive heat transfer performance index (j⋅f−1/3) for heat exchanger at different Reynolds numbers was studied by numerical simulation. The results show that the heat transfer effect is better than that without extension, and the effect is the best when it is 1.5 times, and the growth rate is more than 1.5%; compared with the non extended conditions, the extended outlet basin has little impact, and the maximum increase of c comprehensive heat transfer performance index (j⋅f−1/3) is no more than 0.75%. Therefore, in the numerical simulation, the inlet of the external basin of the heat exchanger can be extended by 1.5 times of the base tube diameter, and the outlet is not extended.Hongtao LiShuai ZhangYunguang JiMingxu SunXudong LiYonggang ShengElsevierarticleTube-fin heat exchangerImport and exportLengthenNumerical simulationElectrical engineering. Electronics. Nuclear engineeringTK1-9971ENEnergy Reports, Vol 8, Iss , Pp 147-155 (2022)
institution	DOAJ
collection	DOAJ
language	EN
topic	Tube-fin heat exchanger Import and export Lengthen Numerical simulation Electrical engineering. Electronics. Nuclear engineering TK1-9971
spellingShingle	Tube-fin heat exchanger Import and export Lengthen Numerical simulation Electrical engineering. Electronics. Nuclear engineering TK1-9971 Hongtao Li Shuai Zhang Yunguang Ji Mingxu Sun Xudong Li Yonggang Sheng The influence of catchment scale on comprehensive heat transfer performance about tube fin heat exchanger in numerical calculation
description	The purpose of enhanced heat exchange technology is to improve the heat exchange performance of heat exchange equipment, but the increase of resistance causes the decrease of energy consumption and economic benefits. Then the comprehensive evaluation index is used to evaluate the comprehensive heat exchange performance of heat exchange equipment. In the process of numerical simulation, there is no unified standard for the value of the catchment scale. In this paper, by changing the length of the entrance and exit of the external passage of the tube-fin heat exchanger, the change law of comprehensive heat transfer performance index (j⋅f−1/3) for heat exchanger at different Reynolds numbers was studied by numerical simulation. The results show that the heat transfer effect is better than that without extension, and the effect is the best when it is 1.5 times, and the growth rate is more than 1.5%; compared with the non extended conditions, the extended outlet basin has little impact, and the maximum increase of c comprehensive heat transfer performance index (j⋅f−1/3) is no more than 0.75%. Therefore, in the numerical simulation, the inlet of the external basin of the heat exchanger can be extended by 1.5 times of the base tube diameter, and the outlet is not extended.
format	article
author	Hongtao Li Shuai Zhang Yunguang Ji Mingxu Sun Xudong Li Yonggang Sheng
author_facet	Hongtao Li Shuai Zhang Yunguang Ji Mingxu Sun Xudong Li Yonggang Sheng
author_sort	Hongtao Li
title	The influence of catchment scale on comprehensive heat transfer performance about tube fin heat exchanger in numerical calculation
title_short	The influence of catchment scale on comprehensive heat transfer performance about tube fin heat exchanger in numerical calculation
title_full	The influence of catchment scale on comprehensive heat transfer performance about tube fin heat exchanger in numerical calculation
title_fullStr	The influence of catchment scale on comprehensive heat transfer performance about tube fin heat exchanger in numerical calculation
title_full_unstemmed	The influence of catchment scale on comprehensive heat transfer performance about tube fin heat exchanger in numerical calculation
title_sort	influence of catchment scale on comprehensive heat transfer performance about tube fin heat exchanger in numerical calculation
publisher	Elsevier
publishDate	2022
url	https://doaj.org/article/aa37f3d8e94c4f0f8ba8ad2d612b0a97
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The influence of catchment scale on comprehensive heat transfer performance about tube fin heat exchanger in numerical calculation

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