放射冷却：10年の進展と今後10年
Radiative cooling: a decade of progress and the decade ahead (原題)
Yeongju Jung, Seung Hwan Ko
🤖 gxceed AI 要約
日本語
放射冷却（RC）は、赤外放射で宇宙空間へ放熱する受動的冷却技術であり、エネルギー集約的な従来空調の代替として注目される。選択的光学材料の進展により、不透明から透明・着色・可変型へと応用が拡大し、建築・電子機器・ウェアラブル・宇宙・生体統合へと広がった。しかし実装には性能指標の不統一、材料の持続可能性、環境適応の課題が残る。標準評価枠組みとライフサイクル炭素中立、政策・エネルギー計画への統合が今後の鍵となる。
English
Radiative cooling (RC) passively dissipates heat to outer space via infrared emission, offering an energy-free alternative to conventional cooling. Advances in spectrally selective optics have extended RC from opaque to transparent, colored, and switchable forms, with applications in buildings, electronics, wearables, space, and bio-integrated systems. Yet scale-up is hindered by inconsistent metrics, material sustainability, and integration challenges. Standardized evaluation, lifecycle carbon neutrality, and policy alignment are needed for societal integration.
Unofficial AI-generated summary based on the public title and abstract. Not an official translation.
📝 gxceed 編集解説 — Why this matters
日本のGX文脈において
日本は夏季の冷房需要と電力ピークが課題で、省エネ技術としてのRCはGX政策・建築物省エネ法と親和的。ただしSSBJ・有報・TCFD開示との直接接続は現状薄く、開示文脈での活用には追加の定量化が必要。
In the global GX context
RC sits at the edge of global disclosure frameworks: it is a mitigation technology, not a reporting standard. Its relevance to TCFD/ISSB lies in Scope 1/2 reduction pathways for buildings and cooling demand, but the paper does not engage disclosure infrastructure directly.
👥 読者別の含意
🔬研究者:放射冷却の材料・システム研究の到達点と標準化課題を整理するのに有用。
🏢実務担当者:建築・電子機器の冷却エネルギー削減策としてRCを検討する際の技術動向と導入障壁を把握できる。
🏛政策担当者:冷房需要対策と省エネ政策にRCを組み込む際の評価枠組み・ライフサイクル視点の必要性を示唆。
📄 Abstract（原文）
Abstract The accelerating rise in global temperatures and growing demand for cooling underscore the urgent need for sustainable thermal management solutions. Conventional cooling systems depend on energy-intensive processes and refrigerants that exacerbate atmospheric warming, creating a feedback loop that intensifies the very climate challenges they aim to mitigate. Radiative cooling (RC) offers a passive alternative by dissipating heat through infrared (IR) emission to the cold sink of outer space, thereby reducing temperature without external energy input. Since the first demonstration of sub-ambient daytime cooling using spectrally selective materials, advances in optical design and hybrid integration have extended RC capabilities from opaque to transparent, colored, and switchable forms. Moreover, applications have spanned buildings, electronics, and wearable systems and further emerged in extreme-environment space systems and bio-integrated platforms. However, the transition from laboratory demonstrations to large-scale implementation remains constrained by inconsistent performance metrics, material sustainability concerns, and integration challenges across diverse environmental conditions. Thus, future progress will require standardized evaluation frameworks, carbon neutrality through the entire lifecycle, and system-level strategies that align energy efficiency with ecological integrity. As RC evolves from a physical phenomenon to a practical technology embedded within infrastructure, its success will depend on not only material performance but also achieving harmony with Earth’s radiative balance. In this way, it will establish its essential role in sustainable thermal management on a planetary scale. Ultimately, RC’s true societal integration will require its incorporation into coordinated energy planning and policy frameworks, establishing it as a core component of a climate-balanced society.
🔗 Provenance — このレコードを発見したソース
- openalex https://doi.org/10.1007/s42114-026-02053-6first seen 2026-10-05 05:16:37
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