Experimental Study of Forced Convection Heat Transfer Porous Media inside a Rectangular Duct at Entrance Region

Moayed R. Hasan; Suhad A. Rasheed; Ali Najeh Mahdi

doi:10.29196/jubes.v27i1.1991

Article Details

Experimental Study of Forced Convection Heat Transfer Porous Media inside a Rectangular Duct at Entrance Region

Authors:

Moayed R. Hasan | Suhad A. Rasheed | Ali Najeh Mahdi

Publisher:

University of Babylon

Journal:

Journal of University of Babylon for Engineering Sciences Vol.27 Issue 1, pp.211-231

Document Type:

Article

Publication Date:

11/2019

Document Language:

English

Document ID (Org No.):

2001383755

pISSN:

2616-9916

DOI:

10.29196/jubes.v27i1.1991

Keywords:

Abstract:

 This work presents experimental investigation of flow and heat transfer characteristics for entry length of turbulent flow in a rectangular duct fitted with porous media and air as the working fluid. Rectangular duct (300×30 mm) with a hydraulic diameter (54.54 mm) was subjected to constant heat flux from lower surface (1.5 ×102 –1.8 ×102 w/m2) and Reynolds number ranged (3.3x104 up to 4.8x104). Copper mesh inserts (as porous media) with screen diameter (54.5 mm) for vary distance between two adjacent screens of (10 mm), (15 mm) and (20 mm) in the porosity range of (0.98 - 0.99) are considered for experimentation. The effect of porous height ratio (full and partial) are also considered. It is observed that the enhancement of heat transfer by using mesh inserts when compared to a plain surface is more by a factor of (2.2) times where the skin fraction coefficient is about (5) times. An Empirical correlation for Nusselt number and friction factor are developed for the mesh inserts from the obtained results.

Article Details

Experimental Study of Forced Convection Heat Transfer Porous Media inside a Rectangular Duct at Entrance Region

Authors:

Moayed R. Hasan | Suhad A. Rasheed | Ali Najeh Mahdi

Publisher:

University of Babylon

Journal:

Journal of University of Babylon for Engineering Sciences Vol.27 Issue 1, pp.211-231

Document Type:

Article

Publication Date:

11/2019

Document Language:

English

Document ID (Org No.):

2001383755

pISSN:

2616-9916

DOI:

10.29196/jubes.v27i1.1991

Forced convection

Porous media

Wire mesh

Nusselt number

Fraction factor

Issues

Article Details

Experimental Study of Forced Convection Heat Transfer Porous Media inside a Rectangular Duct at Entrance Region

Authors: Moayed R. Hasan | Suhad A. Rasheed | Ali Najeh Mahdi

Publisher: University of Babylon

Journal: Journal of University of Babylon for Engineering Sciences Vol.27 Issue 1, pp.211-231

Document Type: Article

Publication Date: 11/2019

Document Language: English

Document ID (Org No.): 2001383755

pISSN: 2616-9916

DOI: 10.29196/jubes.v27i1.1991

Forced convection

Porous media

Wire mesh

Nusselt number

Fraction factor

Issues

Authors:

Moayed R. Hasan | Suhad A. Rasheed | Ali Najeh Mahdi

Publisher:

University of Babylon

Journal:

Journal of University of Babylon for Engineering Sciences Vol.27 Issue 1, pp.211-231

Document Type:

Article

Publication Date:

11/2019

Document Language:

English

Document ID (Org No.):

2001383755

pISSN:

2616-9916

DOI:

10.29196/jubes.v27i1.1991