Study on Thermal Comfort of Task-Ambient Air Conditioning System

Task-ambient air conditioning system is one of the systems developed to achieve quality indoor thermal environment and energy conservation simultaneously. The purpose of this study is to find the optimum supply air conditions of floor air outlet required to make thermally comfortable environment in the task area without cold draft. To achieve the purpose were carried out the experiments with subjects, who were allowed to control the supply air volume and the direction of inclined jet according to their tastes. The main results are as follows: the suitable combination of the room air temperature and the supply air temperature is 28°C-20°C under which thermally comfortable environment is created in the task area without cold draft. And the subjects have a tendency to use positively the cooling effect of the air flow by leading the jet to their bodies no matter whether the jet hits them directly or indirectly.