A Case Study on the Assumption of Mean Radiant Temperature Equals to Indoor Air Temperature in a Free-Running Building

Thermal comfort is basically affected by environmental (mean radiant temperature, indoor air temperature and relative humidity velocity) personal parameters (clothing value activity level). Mean Radiant Temperature the most complicated parameter among all thermal due to difficulty of measurement calculation processes. Calculation methods are not preferred researchers because complexity obtaining angle factors while require very expensive devices such as globe thermometers radiometers. On other hand, assumptions commonly used in studies their simplicities. One frequently expresses equality mean temperature. However, accuracy this assumption needs further experimental research order evaluate comfort, especially free-running buildings. To aim, study proposes determine equals a building where Adaptive Comfort approach applied summer condition. Environmental measured via objective sensors, adaptive assessed software program. The statistical results show that there significant deviations between two conditions for building.