Thermodynamic Head Loss in a Channel with Combined Radiation and Convection Heat Transfer ()
Abstract
Losses in channel flows are usually
determined using a frictional head loss parameter. Fluid friction is however
not the only source of loss in channel flows with heat transfer. For such flow
problems, thermal energy degradation, in addition to mechanical energy
degradation, add to the total loss in thermodynamic head. To assess the total
loss in a channel with combined convection and radiation heat transfer, the
conventional frictional head loss parameter is extended in this study. The
analysis is applied to a 3D turbulent channel flow and identifies the critical
locations in the flow domain where the losses are concentrated. The influence
of Boltzmann number is discussed, and the best channel geometry for flows with
combined heat transfer modes is also determined.
Share and Cite:
Makhanlall, D. and Jiang, P. (2014) Thermodynamic Head Loss in a Channel with Combined Radiation and Convection Heat Transfer.
Journal of Power and Energy Engineering,
2, 57-63. doi:
10.4236/jpee.2014.29009.
Conflicts of Interest
The authors declare no conflicts of interest.
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