| Title |
Optimum Comfort Limits Determination through the Characteristics of Asymmetric Thermal Radiation in a Radiant Heating Space, ONDOL |
| Abstract |
It might be impossible to describe thermal radiation environment at a point in floor heated space using the concept of M.R.T, because thermal radiation in that space is usually asymmetric and has an orientation. A person in that environment used to feel local thermal discomfort at a part of body an intense radiation from a heated floor. So there are some problems in applying the comfort criteria which have been used in other countries to Koreans without adjusting them for the differences between the thermal sensation and life style of Koreans and those of others. This study was undertaken to evaluate the effects of the asymmetric radiant field on thermal comfort, and to suggest the optimum comfort limits in a radiant heating space. As it has been known that the V.R.T.affects the perceived asymmetry in recent researches, it was used to describe the environmental quality of the floor heated space. Optimum comfort limits of the asymmetric radiant space were suggested through both theoretical and empirical studies. It is recommended to use not only men's sensation of the ambient air but also that of the floor surface for determination of the optimum comfort limits on the floor heated spaced like on "ONDOL" in Korea. In the present study, the optimum comfort limits in the floor heated space were suggested in terms of the V.R.T.through theoretical and empirical studies.The optimum limits obtained were as follows:-the floor surface temperature 30.6~38.8 C-the vector radiant temperature 11.0~15.0K |