Energy–Carbon Trade-Offs of Windcatcher Integration in a High-Thermal-Mass Courtyard House: A Combined EnergyPlus and CFD-Based Assessment in a Hot–Arid Climate
高温熱容量の中庭住宅における風取り込み装置統合のエネルギー・炭素トレードオフ：暑く乾燥した気候でのEnergyPlusとCFDを組み合わせた評価 (AI 翻訳)
Mohammad Ahmad Hussein Khataybeh, Alpay Akgüç, Dilek Yaşar
🤖 gxceed AI 要約
日本語
この研究は、暑く乾燥した気候の中庭住宅における風取り込み装置（ウィンドキャッチャー）のエネルギーと炭素負荷への影響を評価した。EnergyPlusとCFDを組み合わせた解析により、運転スケジュールや形状などのシナリオを検討した結果、連続運転では性能が低下し、季節運転でバランスが取れた。最も良い構成でも年間エネルギー需要は0.17%減少したが、炭素排出量は1.53%増加した。伝統的な受動的システムは総合的な評価が必要である。
English
This study assesses the energy and carbon implications of integrating a windcatcher into a high-thermal-mass courtyard house in a hot-arid climate. Using EnergyPlus and CFD, scenarios varied operation, geometry, and materials. Results showed context-dependent performance: continuous operation worsened annual performance, while seasonal operation was more balanced. The best configuration reduced annual energy demand by only 0.17% but increased carbon emissions by 1.53%, indicating limited benefit. The study emphasizes the need for integrated annual energy and carbon analysis for vernacular passive systems.
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
日本の建築分野では、伝統的なエコハウスやパッシブデザインの再評価が進んでいるが、本論文はEnergyPlusとCFDを組み合わせた評価手法が有効であることを示している。日本でも同様の手法で、伝統的建築のパッシブ性能を定量的に評価し、省エネルギー改修やゼロエネルギーハウス（ZEH）設計に活用できる。
In the global GX context
Globally, this paper provides a rigorous methodology for evaluating vernacular passive systems using integrated building energy simulation and CFD. It highlights that even well-known passive strategies may have limited energy and carbon benefits under contemporary comfort control, cautioning against uncritical adoption. This is relevant to net-zero building design and renovation strategies worldwide.
👥 読者別の含意
🔬研究者:This study provides a method for integrated annual energy and carbon assessment of passive systems, useful for building performance simulation researchers.
🏢実務担当者:Building designers can use the findings to critically evaluate windcatcher integration, noting that operational schedule and geometry are critical.
📄 Abstract（原文）
Traditional windcatchers are often discussed as passive cooling devices for hot–arid climates, yet their sustainability performance under contemporary comfort-controlled operation remains insufficiently understood. This study evaluates the energy and load-based carbon implications of integrating a windcatcher into a high-thermal-mass courtyard house in Şanlıurfa, Türkiye. A combined DesignBuilder v6.1/EnergyPlus v8.2 and CFD-based assessment was used: annual heating and cooling loads were calculated through EnergyPlus-based building energy simulation, while CFD analyses were used to interpret representative airflow behavior and localized thermal effects within the semi-open iwan. Scenarios varied operational schedule, geometry, material configuration, ventilation openings, and water pool integration. The results show strongly context-dependent performance rather than uniform energy or carbon benefit. Continuous operation weakened annual performance, whereas seasonal operation produced more balanced outcomes. The P.1 configuration produced the lowest total annual energy demand among the tested scenarios, decreasing total demand from 70,929.99 to 70,806.65 kWh/a, corresponding to a reduction of 123.34 kWh/a or 0.17% relative to the baseline. However, this limited reduction was accompanied by a 6.02% increase in cooling demand and a 2.52% decrease in heating demand. Consequently, the total load-based carbon indicator increased from 18.32 to 18.60 tCO2/year, corresponding to an increase of 0.28 tCO2/year or 1.53%. CFD results indicate that the semi-open iwan geometry and its orientation relative to prevailing winds constrained airflow effectiveness and limited the transfer of local cooling effects to conditioned zones. This study demonstrates that vernacular passive systems should be evaluated through integrated annual energy, airflow, and load-based carbon analyses before being adopted in sustainable renovation or climate-responsive design.
🔗 Provenance — このレコードを発見したソース
- openalex https://doi.org/10.3390/su18147283first seen 2026-07-19 04:57:20
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