Proceedings of the SAREK Conference (대한설비공학회:학술대회논문집)
- 2008.06a
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- Pages.395-401
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- 2008
Heat Transfer Characteristics of Aluminium and FeCrAlY Foam
- Jin, Meihua (Department of Mechanical and Precision Engineering, School of Mechainical and Aerospace Engineering Eco_Friendly Heat & Cold Energy Mechanical Research Team, BK21) ;
- Kim, Pil-Hwan (Department of Mechanical and Precision Engineering, School of Mechainical and Aerospace Engineering Eco_Friendly Heat & Cold Energy Mechanical Research Team, BK21) ;
- Lee, Hae-Jong (Department of Mechanical and Precision Engineering, School of Mechainical and Aerospace Engineering Eco_Friendly Heat & Cold Energy Mechanical Research Team, BK21) ;
- Jeong, Hyo-Min (Department of Mechanical and Precision Engineering, School of Mechainical and Aerospace Engineering Eco_Friendly Heat & Cold Energy Mechanical Research Team, BK21) ;
- Chung, Han-Shik (Department of Mechanical and Precision Engineering, School of Mechainical and Aerospace Engineering Eco_Friendly Heat & Cold Energy Mechanical Research Team, BK21)
- Published : 2008.06.25
Abstract
Since metallic foam will increase the performance of heat exchanger, it have caused many researcher's attention recently. Our research base on the model that metallic foams applied to heat exchanger. In this case, there is three kind of heat transfer mechanisms, heat conduction in fibers, heat transfer by conduction in fluid phase, and internal heat change between solid and fluid phases. In this paper we study both the hydraulic and thermal aspect performance. Pressure drop along air flow direction will be presented. As thermal aspect, we first discuss the acceptance of applying thermal equilibrium among the two phases. then to calculate the dimensionless temperature profile, the heat transfer coefficient and Nu number in 14 metallic foams(7 Aluminium foams, 7 FeCrAlY foams). All these discussion is based on the same velocity u=2 m/s.