温水式床暖房による室内垂直方向温度分布の実測と解析  [in Japanese] MEASUREMENT AND MODEL EXPERIMENT OF AIR TEMPERATURE DISTRIBUTION IN NATURAL CONVECTION BY HOT WATER FLOOR HEATING SYSTEM  [in Japanese]

Floor heating systems are recently coming into wide use in general Japanese houses. To apply the floor heating systems not only to general houses, but also to high-ceiling houses and large-scale facilities, we must clarify indoor air-temperature distributions and its formation processes in various shape and scale buildings with heating systems. We thus measured vertical air-temperature distributions at three actual houses of different ceiling heights, i.e., one storied house, house with an atrium, and gymnasium with hot-water floor heating systems. Moreover we cleared the air-temperature distribution in a general room with the floor heating system and its formation process by model experiment. Consequently, the followings were revealed regarding the houses. 1. Although the ceiling heights were different, the air-temperature distributions of the houses and model with the hot-water heating-floor systems were similar. 2. The temperature difference in vertical direction was small.