This paper reports the experimental results of the performance evaluation of direct gain systems using a twin-type test house. Bricks or water is used as heat storage material. Before starting the experiment, it was confirmed that the two test rooms had the same degree of air-tightness and the same daily temperature profile. For purpose of our investigation, one test room usually had a brick floor with a depth of 30 cm as a reference, while the other room had various types of direct gain systems. After measurement of such things as the temperature at various points and the amount of solar radiation over a period of two to three weeks, the effect of factors such as the depth of the bricks, the surface area of the bricks in contact with room air, the carpet covering the brick floor, etc. , on the room temperature profiles was evaluated by examining the two factors, the daily mean room temperature based on outdoor temperature and the width of room temperature swing.
|Title of host publication||Unknown Host Publication Title|
|Publisher||Japan Solar Energy Soc|
|Number of pages||6|
|Publication status||Published - 1985 Dec 1|
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