View-Factor Calculation for Radiation Heat Transfer in Steam Boiler Furnaces

Andrew Ch. Yiannopoulos

Boiler furnace, radiative heat, view-factor, water tube.

The heat radiated by flames and absorbed by water in steam boiler furnaces strongly depends on the view-factor between the flames and water tubes. In the present study an analytical method is conducted and a simple expression of the view-factor for the case of direct radiation is given. The values of view-factor compared with the values of other methods found in the literature coincide very well, which means that the proposed solution proves to be a very useful tool for estimating the thermal energy transferred by radiation to water tubes.

https://dx.doi.org/10.31873/IJEAS.8.11.03