Experimental Study on the Impact of External Geometrical Shape on Free and Forced Convection Time Dependent Average Heat Transfer Coefficient during Cooling Process

In this research, an experimental study was conducted to high light the impact of the exterior shape of a cylindrical body on the forced and free convection heat transfer coefficients when the body is hold in the entrance of an air duct. The impact of changing the body location within the air duct a...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autor principal:	Sundus Hussein Abd
Formato:	article
Lenguaje:	EN
Publicado:	Al-Khwarizmi College of Engineering – University of Baghdad 2012
Materias:	heat transfer free convection force convection circular cylinder square cylinder triangular cylinder. Chemical engineering TP155-156 Engineering (General). Civil engineering (General) TA1-2040
Acceso en línea:	https://doaj.org/article/51fef5c830724846a7e529f7ad3d8ede
Etiquetas:	Agregar Etiqueta Sin Etiquetas, Sea el primero en etiquetar este registro!

id	oai:doaj.org-article:51fef5c830724846a7e529f7ad3d8ede
record_format	dspace
spelling	oai:doaj.org-article:51fef5c830724846a7e529f7ad3d8ede2021-12-02T07:39:27ZExperimental Study on the Impact of External Geometrical Shape on Free and Forced Convection Time Dependent Average Heat Transfer Coefficient during Cooling Process1818-1171https://doaj.org/article/51fef5c830724846a7e529f7ad3d8ede2012-01-01T00:00:00Zhttp://www.iasj.net/iasj?func=fulltext&aId=64561https://doaj.org/toc/1818-1171In this research, an experimental study was conducted to high light the impact of the exterior shape of a cylindrical body on the forced and free convection heat transfer coefficients when the body is hold in the entrance of an air duct. The impact of changing the body location within the air duct and the air speed are also demonstrated. The cylinders were manufactured with circular, triangular and square sections of copper for its high thermal conductivity with appropriate dimensions, while maintaining the surface area of all shapes to be the same. Each cylinder was heated to a certain temperature and put inside the duct at certain locations. The temperature of the cylinder was then monitored. The heat transfer coefficient were then calculated for forced convection for several Reynolds number (4555-18222).The study covered free convection impact for values of Rayleigh number ranging between (1069-3321). Imperical relationships were obtained for all cases of forced and free convection and compared with equations of circular cylindrical shapes found in literature. These imperical equations were found to be in good comparison with that of other sources. Sundus Hussein AbdAl-Khwarizmi College of Engineering – University of Baghdadarticleheat transferfree convectionforce convectioncircular cylindersquare cylindertriangular cylinder.Chemical engineeringTP155-156Engineering (General). Civil engineering (General)TA1-2040ENAl-Khawarizmi Engineering Journal, Vol 8, Iss 4, Pp 74-89 (2012)
institution	DOAJ
collection	DOAJ
language	EN
topic	heat transfer free convection force convection circular cylinder square cylinder triangular cylinder. Chemical engineering TP155-156 Engineering (General). Civil engineering (General) TA1-2040
spellingShingle	heat transfer free convection force convection circular cylinder square cylinder triangular cylinder. Chemical engineering TP155-156 Engineering (General). Civil engineering (General) TA1-2040 Sundus Hussein Abd Experimental Study on the Impact of External Geometrical Shape on Free and Forced Convection Time Dependent Average Heat Transfer Coefficient during Cooling Process
description	In this research, an experimental study was conducted to high light the impact of the exterior shape of a cylindrical body on the forced and free convection heat transfer coefficients when the body is hold in the entrance of an air duct. The impact of changing the body location within the air duct and the air speed are also demonstrated. The cylinders were manufactured with circular, triangular and square sections of copper for its high thermal conductivity with appropriate dimensions, while maintaining the surface area of all shapes to be the same. Each cylinder was heated to a certain temperature and put inside the duct at certain locations. The temperature of the cylinder was then monitored. The heat transfer coefficient were then calculated for forced convection for several Reynolds number (4555-18222).The study covered free convection impact for values of Rayleigh number ranging between (1069-3321). Imperical relationships were obtained for all cases of forced and free convection and compared with equations of circular cylindrical shapes found in literature. These imperical equations were found to be in good comparison with that of other sources.
format	article
author	Sundus Hussein Abd
author_facet	Sundus Hussein Abd
author_sort	Sundus Hussein Abd
title	Experimental Study on the Impact of External Geometrical Shape on Free and Forced Convection Time Dependent Average Heat Transfer Coefficient during Cooling Process
title_short	Experimental Study on the Impact of External Geometrical Shape on Free and Forced Convection Time Dependent Average Heat Transfer Coefficient during Cooling Process
title_full	Experimental Study on the Impact of External Geometrical Shape on Free and Forced Convection Time Dependent Average Heat Transfer Coefficient during Cooling Process
title_fullStr	Experimental Study on the Impact of External Geometrical Shape on Free and Forced Convection Time Dependent Average Heat Transfer Coefficient during Cooling Process
title_full_unstemmed	Experimental Study on the Impact of External Geometrical Shape on Free and Forced Convection Time Dependent Average Heat Transfer Coefficient during Cooling Process
title_sort	experimental study on the impact of external geometrical shape on free and forced convection time dependent average heat transfer coefficient during cooling process
publisher	Al-Khwarizmi College of Engineering – University of Baghdad
publishDate	2012
url	https://doaj.org/article/51fef5c830724846a7e529f7ad3d8ede
work_keys_str_mv	AT sundushusseinabd experimentalstudyontheimpactofexternalgeometricalshapeonfreeandforcedconvectiontimedependentaverageheattransfercoefficientduringcoolingprocess
_version_	1718399280092282880

Experimental Study on the Impact of External Geometrical Shape on Free and Forced Convection Time Dependent Average Heat Transfer Coefficient during Cooling Process

Ejemplares similares