環境が学習に与える影響を計測するため, 被験者実験を実施して検討を行った. 学習の定義は様々であるが, 学習を集中力, 注意力, 記憶力に基づく精神作業と定義し, 環境がそれぞれの作業に与える影響の計測を行うこととした. 実験では, 方式の頭寒足熱型とその逆の環境である頭部が暑く足下が寒い頭熱足寒型の環境を設定し, それぞれの環境で学習を計測して比較を行った. その結果, 集中力を計測するために行った連続加算テストでは, 環境では作業量の降下が見られず集中力が持続していることが確認できた. ブルドン抹消テストによる注意力の計測では, 環境下で高い注意力が現れていることを確認した. また, 記憶力のテストでは, 短期記憶の再生, 及び記憶の再認する2つのテストにおいて環境はともに良い結果であった. これらの結果は, 環境が学習を行うのに適した環境であること示唆している.

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起動時における床温や室温の変化が生理的および心理的反応に及ぼす影響を検討するため，実験住宅にて実験を行った．実験は冬服（0.9clo）を着用した健康な若年女性8人を対象に，立ち上がり加温速度の異なる4条件で，起動時と安定時における皮膚温，深部体温，温冷感，快適感などをそれぞれ210分間測定した（30分の休憩を含む）．その結果，起動時に急激に床温が上昇した場合，環境温の変化に対し平均皮膚温の変化が追いつかず，一方で深部体温が低下した．さらに床温が40℃という高温にもかかわらず温冷感は「暖かい」程度にとどまるため，暖かいほど快適と感じる傾向が認められた．また温冷感は，足底部皮膚温や平均皮膚温のみならず深部体温の低下に関係していた．起動時は自身の温冷感や快適感に基づき温度設定を行うと，必要以上に環境温を上昇させてしまう可能性が示唆された．

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The purpose of this paper is to improve the performance of the HOT WATER FLOOR-HEATING SYSTEM WITH HEAT PIPE by solving the problems suggested in the previous paper. The problems were uneven temperature of the floor surface and slow temperature rising. THERMO-UNIFORMITY PLATE were developed to solve the problems. Effect of this member was verified in the artificial climate room. The results are as follows; Because of improvement of THERMO-UNIFORMITY PLATE from plywood covered with aluminum foil to Aluminum extrusion panel, 1) The heat transfer from pipe to THERMO-UNIFORMITY PLATE was promoted extremely. 2) Heating performance can be improved by about 30 %. 3) Accordingly uneven temperature and rising speed of temperature of floor surface were improved.

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Combined use of an airconditioner and floor heating with heat storage tanks installed in the space under the floor board of a house is proposed for space heating in order to reduce the size of the floor heating system, which is considered to be a solar hot water system in the future. The surface area of the floor of a room of an experimental house is 10m^2 and 32 water tanks with total mass of 672 kg are installed in the space under the floor board. The floor is heated either by a vinyl tube of 200 m long or an electric carpet which is installed under the water tanks. The room temperature is set at 22℃ by the airconditioner and the temperature of the hot water or carpet is set at 35℃. It was found that the present floor heating system worked well. The temperature drop of the water tanks after 8 hours from the time at which space heating was stopped was only 2℃. Then, the temperature of the surface of the floor was maintained at 15℃ in the morning when the ambient air temperature was near 0℃.

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Building parts and building systems are changed with the times. But records of development and changes of details are not almost handed down. Those records of change will be helpful to produce better development. In this study, we took notice floor heating systems, and surveyed connection between researches on patent and literature about those changes. As a result, the floor heating systems have importance to the improvement in floor of building parts, panels and dry building systems, and requirements of related to the manufacture/construction and the heat.

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The object of this study is improvement of floor heating in the quality of thermal storage and heat release and floor cooling without changing specification. Outdoor facility experiment which consists of 4 kinds of floor structure prototypes (Concrete burial, Panel cell, Charcoal+Insulation and Charcoal) were tested about thermal storage/release performance. Characteristics of heat transfer of Panel cell were also tested in the temperature-controlled room. Moreover, floor cooling using conventional floor heating system is tried in the model house. The results show that the Panel cell is superior to charcoal in performance and floor cooling system can be operated.

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とエアコン暖房の熱的快適域の比較を目的とし、住宅で被験者実験を行った。その結果、全身温冷感が中立となる室内気温はで22.7℃、エアコン暖房で24.8℃となり、がエアコン暖房より約2℃低い室内気温で温冷感の中立が得られた。また、では室内気温22℃、エアコン暖房では室内気温24℃で熱的快適感が得られ、で床面温度が室内気温より高くなると、エアコン暖房時より低い室内気温で熱的快適域となった。

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Using the feature of the thermal conductivity of copper, the authors developed the void pipe floor heating system. Indoor experiments verified that the system has the same heating performance as the general heating ones. In this paper, the data from the experimental house equipped with our newly developed system and the data from indoor experiments on the same system were compared. Also, by using the simplified floor panel model we computed the heating performance of the systems in the experimental houses with different insulation capacities. The data from the experimental house showed that the system in the steady state can keep the floor surface temperature at about 31℃ and indoor temperature at about 25℃. However, although the system has an improved heating performance, it still takes about 8-10 hours to reach the steady state even in case that the house has high insulation capacity.

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