An Experimental Study on a Sustainable Novel Laminar Convective–Radiative Heating Terminal: Optimized Localized Heating Toward Energy Conservation and Low-Carbon Office Buildings

Unofficial AI-generated summary based on the public title and abstract. Not an official translation.

🔬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.

従来の全空間暖房システムは、未使用の室内領域において大量の化石由来エネルギーを浪費し、持続可能な建築目標に反する「頭部が暖かく足元が冷たい」という不快な問題を引き起こす。このギャップを埋め、持続可能なオフィス開発のための低炭素室内暖房ソリューションを前進させるため、本研究は放射パネルと下向き層流空気供給を組み合わせた革新的な局所暖房端末を提案する。実験プラットフォームを構築し、供給気流速度、供給気温、放射パネル温度を変化させた12の試験ケースを設定して、その熱的快適性と省エネルギー持続可能性性能を調査した。実験結果は、最適運転条件（0.55 m/sの気流、23.5 °Cの供給空気、36 °Cの放射パネル）において、垂直方向の頭部と足元の温度差がわずか1.2 °Cに低減し、従来の暖房機器の3〜5 °Cの閾値をはるかに下回ることを実証している。ドラフト率はゼロに近づき、冷気流による不快感を解消する。重要なことに、総供給熱量の65〜75%が人体占有ゾーンに集中し、冗長な熱損失を大幅に削減して建築暖房の持続可能性を向上させる。本端末は二つの動作モードを備える。対流は総熱量の78.7〜94.4%を寄与して急速な暖房を実現し、放射熱は安定した長期の快適な周囲環境を維持する。このような柔軟なデュアルモード設計は、断続的なオフィス占有に適合する持続可能な部分負荷運転を支援し、本端末はエネルギー効率と健康的な室内環境を優先する現代の持続可能なオフィスビルにとって実現可能な低炭素オプションとなる。

AI 翻訳（deepseek-v4-flash）。 正確を期す場合は下の原文を参照してください。

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.

• openalex https://doi.org/10.3390/su18126017first seen 2026-06-14 04:49:12 · last seen 2026-06-17 07:12:39