Envelope Design Trade-Offs for Low-Carbon Residential Buildings in Dubai: A Simulation-Based Multi-Objective Optimization Study
Dubaiにおける低炭素住宅の外皮設計トレードオフ: シミュレーションベース多目的最適化研究 (AI 翻訳)
Mohamad Khaled Bassma, Ghayth Tintawi
🤖 gxceed AI 要約
日本語
ドバイの気候下での住宅外皮設計の多目的最適化を実施。窓壁比、ガラス種、日射遮蔽、壁・屋根構造を変数とし、年間エネルギー消費と熱的不快感を最適化。ベースライン比55%のエネルギー削減を達成。低放射ガラス、断熱屋根、適度な窓壁比が有効。
English
This study optimizes envelope design for low-carbon residential buildings in Dubai using multi-objective simulation. Five variables (window-to-wall ratio, glazing, shading, wall, roof) were optimized, reducing annual site energy by 55% from baseline. Preferred solutions include moderate WWR, low-e glazing, insulated roofs, and external shading.
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
ドバイの事例だが、日本の住宅の省エネ基準やZEH実現に向けた外皮設計に示唆を与える。特に冷房主体の気候での外皮最適化手法は、日本の温暖地でも応用可能。
In the global GX context
While focused on Dubai, this study's methodology for balancing operational and embodied carbon in cooling-dominated climates is relevant to global building decarbonization, particularly for regions with high cooling loads. It contributes empirical evidence for envelope design trade-offs.
👥 読者別の含意
🔬研究者:Provides a simulation-based multi-objective optimization framework for building envelope design that can be adapted to other climates.
🏢実務担当者:Offers specific design recommendations (low-e glazing, insulated roofs, moderate WWR) for reducing operational energy and carbon in residential buildings.
🏛政策担当者:Supports the development of building energy codes that consider both operational and embodied carbon.
📄 Abstract（原文）
Residential buildings in Dubai experience high cooling demand due to extreme climatic conditions, increasing both operational energy consumption and carbon-related environmental impacts. While previous studies have commonly focused on operational energy reduction, fewer investigations have simultaneously examined thermal comfort and embodied carbon implications within residential envelope optimization. This study investigates envelope design trade-offs for low-carbon residential buildings in Dubai through a simulation-based multi-objective optimization framework. A two-story residential villa prototype was developed in DesignBuilder and evaluated under Dubai climatic conditions using an EnergyPlus engine and hourly weather data. Five envelope-related variables were optimized, including window-to-wall ratio, glazing type, external shading depth, wall construction, and roof construction, while occupancy, HVAC performance, ventilation, and operational schedules remained fixed. Optimization was conducted to identify balanced envelope solutions based primarily on annual site energy consumption and thermal discomfort, while embodied carbon was retained as a supporting material-impact indicator. The baseline model recorded an annual site energy use of 40,427.48 kWh/year, corresponding to 189.44 kWh/m²·year, with 3,036.50 annual discomfort hours. Optimized solutions achieved reductions in annual site energy use to approximately 18,107 kWh/year, representing an improvement of nearly 55% relative to the baseline case. Results consistently favored moderate window-to-wall ratios, low-emissivity glazing, insulated roof assemblies, and external shading strategies. The findings provide practical guidance for climate-responsive residential envelope design in Dubai and contribute evidence for balancing operational and embodied environmental performance in cooling-dominated climates
🔗 Provenance — このレコードを発見したソース
- openalex https://doi.org/10.20944/preprints202606.0424.v1first seen 2026-06-10 05:05:45 · last seen 2026-06-16 04:50:02
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