A new method for evaluation of heat transfer between solid material and fluid in a porous medium
Technological applications in which porous materials are utilized include thermal energy storage, geophysical fluid engineering, thermal insulation, heat transfer enhancement, and heat exchangers. The author proposes a new method to estimate the heat transfer between fluid gas and solid material in a porous medium. In the first stage, the local Nusselt numbers on the heated wall of a flow passage with a porous medium are numerically obtained in advance for the parameter H{sub a}, including the volumetric heat transfer coefficient, h{sub {nu}}, between the fluid and the solid material in a porous medium. In the second stage, the experimental Nusselt numbers on the heated wall are obtained by measuring wall temperatures and heat flux. The volumetric heat transfer coefficient, h{sub {nu}}, is evaluated by comparing experimental Nusselt numbers with numerical ones. This method also gives the longitudinal characteristics of the heat transfer in a porous medium.
- Research Organization:
- Yamanashi Univ. (JP)
- OSTI ID:
- 20005633
- Journal Information:
- Journal of Heat Transfer, Vol. 121, Issue 4; Other Information: PBD: Nov 1999; ISSN 0022-1481
- Country of Publication:
- United States
- Language:
- English
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