Energy Balance in Al-Co Open-Celled Foam of Transpiration Cooling

Bundit Krittacom; Pipatana Amatachaya; Ratipat Sangchot

doi:10.4028/www.scientific.net/AMM.575.41

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vol. 575Energy Balance in Al-Co Open-Celled Foam of...

Energy Balance in Al-Co Open-Celled Foam of Transpiration Cooling

Abstract:

Numerical model of one-dimensional steady-state on Alumina-Cordierite (Al-Co) open-celled foam using in transpiration cooling system have been conducted to investigate the local energy balance (LEB) of gas and solid phase within porous plate. Physical properties, i.e., porosity (f), pores per inch (PPI) and thickness (x), of Al-Co open-cellular porous material were 0.87, 13 and 0.103 m, respectively. Two equations of the conservative energy consisting of the gas and solid phase were analyzed. From study, it was found that heat convection (HVF) balanced with heat transfer between two phases/ energy of interaction (INT) for the gas phase case. In the solid phase, heat transfer between two phases (INT) tended to offset heat radiation (HRS). Remarkably, heat conduction of both phases (HDF and HDS) was not effected to the present cooling system. Thus, characteristic of fluid flow effecting by HVF and heat transfer governed from HRS was strongly efficient to transpiration cooling system.

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Applied Mechanics and Materials (Volume 575)

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41-45

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https://doi.org/10.4028/www.scientific.net/AMM.575.41

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Online since:

June 2014

Authors:

Bundit Krittacom*, Pipatana Amatachaya, Ratipat Sangchot

Keywords:

Local Energy Balance, Open-Celled Foam, Transpiration Cooling

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