Enhancing heat transfer in parallel-plate channels by using porous inserts

Using Porous Media to Enhancement of Heat Transfer in Heat Exchangers

“…The heat exchanger efficiency also shows a significant increase in the heat capacity ratio. In 2001 [44], the researchers investigated the heat transfer of the plate heat exchanger in the central arrangement between the plates and showed that the presence of porous material in the central makeup reduced the thickness of the boundary layer and consequently Increases heat transfer. Poulikakos and Kazmierczak's research [45] on compulsory displacement in a channel, which is partially occupied by porous material.…”

Numerical Analysis of Heat Transfer and Gas Flow in PEM Fuel Cell Ducts by a Generalized Extended Darcy Model

“…For the porous layer, it has been found that setting eff ¼ f and eff ¼ f in the equations above provide good agreement with experimental data (Poulikakos and Renken, 1987) and are adopted here as well. However, the conductivity k eff in the porous layer cannot be treated in a similar way (Alkam et al, 2001). Parameter studies of the effects of the effective conductivity k eff on the heat transfer, in terms of the conductivity ratio…”

“…By considering the regular fluid as a porous medium with large permeability, only one set of conservation equations needs to be solved for the entire domain. The model has been employed in fundamental studies of fluid flow and heat transfer in various porous media applications, e.g., Alazmi and Vafai (2001); Alkam et al (2001). A more important reason for its success lies in that numerically predicted results using this formulation together with conventional boundary conditions at the interface agree well with experimental results (Vafai and Kim, 1994).…”

“…Fundamental studies of forced convective heat transfer in porous media have attracted attention of various investigators in recent years (Alazmi and Vafai, 2001;Alkam et al, 2001;Bejan, 1987;Chikh et al, 1995;Comiti et al, 2000;Marafie and Vafai, 2001;Poulikakos and Renken, 1987;Teng and Zhao, 2000;Kim, 1990, 1994). This is so because a better understanding of thermal engineering applications is required where porous materials are present.…”

Numerical heat transfer analysis of transcritical hydrocarbon fuel flow in a tube partially filled with porous media

“…M.K. Alkam et al researched the heat transfer in parallel plates with porous inserts and the effects of thermal conduction ratio, Darcy number, and microscopic inertial coefficient were presented [24]. A local thermal non-equilibrium model is another research interest [25][26][27].…”