Heat transfer during air flow in aluminum foams

作者：Mancin Simone; Zilio Claudio; Cavallini Alberto; Rossetto Luisa^*

来源：International Journal of Heat and Mass Transfer, 2010, 53(21-22): 4976-4984.

DOI：10.1016/j.ijheatmasstransfer.2010.05.033

• Air flow
• Foam
• Heat transfer

This paper presents experimental heat transfer coefficients measured during air flow heating in seven different aluminum open-cell foam samples with different number of pores per inch (PPI), porosity and foam core height under a wide range of air mass velocity. Three imposed heat fluxes are considered for each foam sample: 25.0, 32.5 and 40.0 kW m(-2). The collected heat transfer data are analyzed to obtain the global heat transfer coefficient and the normalized mean wall temperature. A model from the open literature has been selected and compared with the experimental database. A new simple heat transfer model, based on the present data, for the global heat transfer coefficient and the foam-finned surface area efficiency estimations has then been developed and compared against the experimental measurements.

• 出版日期2010-10