An Experimental Study on a Sustainable Novel Laminar Convective–Radiative Heating Terminal: Optimized Localized Heating Toward Energy Conservation and Low-Carbon Office Buildings
持続可能な新規層流対流放射暖房端末に関する実験的研究：エネルギー節約と低炭素オフィスビルに向けた最適化局所暖房 (AI 翻訳)
Li Liu, N Li, Zeng Lin, Sun H, Xingchi Jiang, Cheng Zhu
🤖 gxceed AI 要約
日本語
本論文は、放射パネルと下向き層流空気供給を組み合わせた局所暖房端末を提案し、実験によりその性能を評価した。最適条件下では、頭足温度差が1.2℃に低減し、供給熱の65-75%が占有ゾーンに集中する。二重動作モードにより、部分負荷運転が可能で、低炭素オフィスビルに適した暖房ソリューションを提供する。
English
This paper proposes a novel localized heating terminal combining radiant panels and downward laminar air supply for low-carbon office buildings. Experimental results under optimal conditions show a head-foot temperature difference of only 1.2°C and 65-75% of heat concentrated in occupied zones. The dual-mode design supports intermittent occupancy, offering an energy-efficient and comfortable heating solution.
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
日本ではZEB（ネット・ゼロ・エネルギー・ビル）推進や省エネ基準強化が進んでおり、本提案のような局所暖房技術は業務部門のエネルギー消費削減に貢献する可能性がある。ただし、日本の気候や建築様式に合わせた追加検証が必要。
In the global GX context
Globally, this study addresses the challenge of reducing building energy consumption through localized heating, aligning with net-zero building goals. The dual-mode operation and high efficiency make it relevant for green building certification systems like LEED and BREEAM.
👥 読者別の含意
🔬研究者:Provides experimental data on a novel heating terminal design that can inspire further optimization and integration with building energy management systems.
🏢実務担当者:Offers a viable low-carbon heating solution for office buildings, potentially reducing operational costs and improving occupant comfort.
🏛政策担当者:Supports the development of policies promoting energy-efficient heating technologies in commercial buildings to meet climate targets.
📄 Abstract（原文）
Conventional full-space heating systems waste massive fossil-derived energy on unoccupied indoor areas and cause uncomfortable “warm head, cold feet” issues against sustainable building targets. To fill this gap and advance low-carbon indoor heating solutions for sustainable office development, this study proposes an innovative localized heating terminal combining radiant panels and downward laminar air supply. An experimental platform was established, with twelve testing cases covering varied supply air velocity, supply air temperature and radiant panel temperature to explore its thermal comfort and energy-saving sustainability performance. Experimental results demonstrate that, under the optimal operating condition (0.55 m/s airflow, 23.5 °C supply air, 36 °C radiant panel), the vertical head–foot temperature difference reduces to merely 1.2 °C, far below the 3–5 °C threshold of conventional heating equipment; the draught rate approaches zero to eliminate cold draft discomfort. Critically, 65–75% of total supplied heat concentrates within human-occupied zones, drastically cutting redundant heat loss and advancing building heating sustainability. The terminal features dual working modes: convection contributes 78.7–94.4% of total heat for rapid warm-up while radiant heat maintains stable long-term comfortable surroundings. Such flexible dual-mode design supports sustainable part-load operation matching intermittent office occupancy, making this terminal a feasible low-carbon option for modern sustainable office buildings prioritizing energy efficiency and a healthy indoor environment.
🔗 Provenance — このレコードを発見したソース
- openalex https://doi.org/10.3390/su18126017first seen 2026-06-14 04:49:12 · last seen 2026-06-14 04:49:17
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