太陽電池パネルを利用した屋根システムの自然換気効果に関する実測研究

概要

論文の詳細を見る
Most solar photovoltaic (PV) cells are incorporated in building only for electricity supply. As the temperature of interior surface of the photovoltaic cells is increased to about 60℃, the air nearby is heated. If the PV cells are used as roof materials in the atrium space, the stack effect can also be expected, which will assisted the natural ventilation in the building. Here a roof system integrated with amorphous silicon PV cells is proposed in a model house. The air temperature stratification is measured by model experiment, as well as the air change rate by stack effect. Results show that the proposed roof system can turn 5% of solar radiation into electricity, and the other 5%〜7% of the solar radiation can be discharged by natural ventilation. When the solar transmission of the solar roof is too strong, a curtain can prevent the room being overheated. In total, the proposed roof with an interior curtain can use about 10% of the solar irradiation by natural ventilation and electricity generation, while the room temperature is similar to that in the conventional room with insulated roof system.
社団法人日本建築学会の論文
2008-11-30