Analysis of comfort band for adaptive model in Japanese office buildings

Thermal comfort has been discussed subject since 1930. The pattern of the way of global warming and issues regarding the energy has influenced the rise in the interest of this subject lately. This study aims to develop comfort band for adaptive model for Japanese office buildings as the global standard do not include the databases from the Japanese buildings and so might not be applicable in the context of Japan. Field data was conducted in 17 mixed-mode (MM) office buildings located in Tokyo and Kanagawa of Japan. Measurements like air temperature, relative humidity, and other environmental factors was carried out along with the occupant’s thermal comfort survey. Probit analysis method was adapted to estimate comfort band. Result suggests that indoor globe temperature ranged from 22.0-27.0 °C during the field survey period. The comfort band obtained by the difference between the indoor globe temperature and comfort temperature (Δt) are ±2.0°C at 90% and ±2.5°C at 80% which were applied in proposed adaptive model for Japanese office buildings.