Abstract
This paper shows the experimental results on the thermal performance of the passive solar test house. The house contains two rooms which are south-facing and one corridor settled between the two test rooms. At first, it is confirmed that the two test rooms have the same air-tightness and the same daily air temperature profile. For one part of our investigation, one test room is equipped with a passive system and the other one is not equipped. For another part of our investigation, each room was equipped with a different type of passive system. After measuring the room temperature, the solar radiation etc., over a period of two or three weeks, the performance of the passive system is evaluated by comparing the indoor temperature profiles of the two rooms. The results of the experiments are shown as follows. (1) It was confirmed that the two test rooms had the same degree of airtightness and the same daily air temperature profile under the same conditions. (2) The air temperature of the room which gains solar radiation through the south-facing window reaches 45℃ in the daytime. The daily mean temperature of this room is about 10℃ higher than that of the room with no solar radiation. (3) The air temperature of the room with the night insulating weather shutter is about 5℃ higher during the night than that of the room with no shutter. (4) When the room is furnished with a partition made of insulating material, the air temperature of the northern portion of the room which gains solar radiation through the clearstory is 10℃ higher than that of the northern portion of the other room which receives no solar radiation.
