寒冷地における除湿空調時の熱環境評価に関する研究

抄録

Dehumidification using a desiccant air conditioner that has high possibility of reusing exhaust heat is effective in reducing energy consumption. Furthermore, it significantly improves human thermal environment, especially in humid countries such as Japan. Thus, the necessity to install desiccant air conditioners is increasing with the need to reduce energy consumption. In this study, to evaluate thermal environment using a desiccant air conditioning system, we carried out subjective tests both in a demonstration house in Hokkaido and an artificial climate chamber. The measured values and subjective questionnaire reveal that effectiveness of desiccant air conditioning on the indoor environment and human thermal comfort. In terms of room temperature, humidity and human thermal environment, the desiccant air conditioning showed almost the same level of performance as the space cooling by a commonly used air conditioner (set temperature 28°C). Regarding the thermal sensation of subjects, the field tests in the demonstration house showed the superiority of the desiccant air conditioning over the conventional air conditioner. In the tests in the artificial climate chamber, the superiority of the thermal environment was shown in the order of space cooling (26°C), desiccant air conditioning, space cooling (28°C).