%0 Journal Article %A Hooman, Kamel %A Ranjbar-Kani, A. A. %A Ejlali, Arash %D 2004 %I Begell House %N 3&4 %P 8 %R 10.1615/HeatTransRes.v35.i34.70 %T Using a Porous Segment to Increase Thermal Efficiency by Converting Gas Enthalpy to Thermal Radiation in High-Temperature Industrial Furnaces: Exact Solution %U https://www.dl.begellhouse.com/journals/46784ef93dddff27,666fd92362c74af4,5afaaa5e62c35460.html %V 35 %X Based on the concept of local thermal equilibrium an exact solution is reported to investigate effects of a porous segment at the outlet of a high-temperature one-dimensional duct modeled as an industrial furnace. Since the enthalpy of a high-temperature gas is converted to thermal radiation by means of this porous segment, thermal efficiency increases. The two-flux method is taken into account for this problem. %8 2004-07-28