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温度に適応する放射性コーティング
Kechao Tang1,2,3, Kaichen Dong1,2, Jiachen Li2,4
1Department of Materials Science and Engineering, University of California, Berkeley, CA 94720, USA.
まとめ
この研究は,全季節の建物の熱調節のための新しい温度適応性放射性コーティング (TARC) を導入します. このスマートコーティングは 周囲の温度に基づいて 熱放出量を調整することで エネルギー節約を最適化します
科学分野:
- 材料科学
- 建物の物理
- 持続可能なエネルギー
背景:
- 放射性冷却は空を建物用の散熱器として利用します
- 現在の屋根のコーティングは昼間の冷却を最適化しますが,夜や冬には過度に冷却し,暖房コストを増加させます.
- 効率的な熱調節には,特に暖房需要の高い気候では,全季節のアプローチが必要です.
研究 の 目的:
- 柔軟で温度に適応する放射性コーティングを開発し,年間を通してビルのエネルギーを節約します.
- 周囲の温度に応じて 熱放出量を動的に調整する材料を 作り出すこと
- 寒い時期の過冷却の問題を緩和し,暖かい時期の冷却の利点を維持する.
主な方法:
- 温度に依存する熱放出力を有する機械的に柔軟なコーティングの製造.
- 光学的に増幅された金属隔離器の移行メカニズムを使用して,放出スイッチングを行う.
- 既存のソリューションと比較して開発されたコーティングのエネルギー節約性能をシミュレートします.
主要な成果:
- 開発された温度適応性放射性コーティング (TARC) は,ダイナミックな熱放出スイッチングを示す.
- TARCの放出量は15°C以下で0.20から30°C以上で0.90に変化する.
- シミュレーションにより,さまざまな気候,特に季節的な変動がある気候において,優れたエネルギー節約の可能性が示されています.
結論:
- TARCは被動的な建物熱管理のための革新的なソリューションを提供します.
- この適応コーティングは静的な放射性冷却材料の限界を効果的に解決します.
- TARCは建築物の年間エネルギー消費を大幅に削減する可能性を証明しています.
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