Direct Measurement of Occupants' Skin Temperature and Human Thermal Comfort Sensation for Building Comfort Control

摘要

Providing conditioned and fully controlled indoor environment is one of goals of building design. But on the other hand, smart building controllers are providing the required cooling and heating load depending on occupants' real time feelings. This study focuses on evaluating meaningful and steady state relationship between human thermal perception and body physiological behavior and express comfort feeling perception as a measurable and sensible variable in general occupants through their ambient. For this purpose different body part reaction in the same ambient situation has been studied and two body parts which have the biggest linear temperature changes to ambient condition, has been selected to evaluate this research hypothesis. For these tests, wrist and palm temperatures on different people have been measured accurately with thermal camera to follow the temperature trend on various comfort levels which has been caused by different ambient condition. It has been founded that each person has his own unique temperature on wrist and palm when he feels comfort in the ambient he is in. In the other words each person's body temperature at comfort level is a precise indicator for comfort feeling of his own. So in the future by having this unique comfort temperature for each person, controlling the indoor condition with the occupants' body temperature to approach them to their unique hand comfort temperature would be a rational choice to bring convenience while energy has been saved more.