Dynamic analysis of heat transfer in buildings with special emphasis on radiation

Abstract This work removes the imperfections of known models for the calculation of heat transfer through radiation. The real radiation view factor between the observed surface and location of mean radiant temperature (MRT) was calculated where MRT represented the global unit for heat transfer in the enclosure through radiation. The error in calculating the radiation heat flow due to temperature difference linearization was reduced. Mathematical models for the calculation of the representative MRT in the enclosure were verified experimentally and its deviations from the calculated value due to the heat sources in the enclosure were discovered. For measuring the distribution of local mean radiant temperature (LMRT) in the enclosure, a new sensor was developed with a relatively low time constant.