太陽エネルギー
Online ISSN : 2433-5592
Print ISSN : 0388-9564
研究論文
光透過性を有する薄型真空断熱材の開発に関する研究
第1報 構造計算と伝熱計算による芯材検討および真空断熱材の試作と性能評価
葛 隆生楊 樟相原 昌博中村 真人長野 克則
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ジャーナル フリー

2018 年 44 巻 2 号 p. 49-57

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This study aims at developing the vacuum insulation panels (VIPs) with small thickness and light transmittance to contribute retrofitting insulation for existing buildings. The authors are focus on producing the slim and translucent VIPs with vacuum layer which hold by spacers. Firstly, the outlines of vacuum layer type VIPs were introduced. Next, the structural calculation was carried out as a mechanical analysis to determine the specific array of spacers to pillars supported type. Then, the heat transfer model applying the one-dimensional calculation was developed to predict the insulation performance of VIPs. After that, the authors conducted an experiment applying the guarded hot plate method in order to verify the apparent thermal conductivity of VIP according to the set pressure. The result showed that the apparent thermal conductivity was less than 0.1 W/(mK) and was enough low. Finally, the VIPs with different core materials were trial produced and the apparent thermal conductivity were evaluated by the heat flux method.

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