| Title |
An Experimental Study on Establishing the Comfort zone of thermal environment in summer |
| Abstract |
The objectives of this study were 1) to observe the value of psycho-physical ratings corresponding to the air temperature and to test whether significant difference would exit or not among them, 2) to investigate the difference of mean value of psycho-physical ratings at the each temperature between sexes, 3) to investigate a realtionship between the thermal sensation ratings and the thermal discomfort ratings, and 4) to investigate thermal neutral point for Korean with a view to energy conservation and optimal control of the cooling system.To investigate this problems, and experimental investigation was carried out in the climate chamber at the Yonsei-University.Major findings were as follows:1) The difference of thermal sensation ratings between males and females was found to be statistically significant. Female subjects felt as slightly colder than males at air temperature 22 C, 24 C, and 28 C. The difference of the thermal discomfort ratings between sexes was observed to be statistically significant at 26 C and at this air temperature, more females than males expressed to be felt as 'comfortable'2) When the subjects marked 'the slightly cool', 'neutral', 'sightly warm' on their thermal sensation ratings, the percentage of which they felt as ' comfortable' was the highest. And subjects expressed 'discomfort' at higher temperature than at lower one. 3) The thermal neutral point of subjects was 24.9 C. (female 25.5 C, male 24.4 C) Female subjects preferred 1.1 C higher temperature than males. |