半乾燥気候におけるネット・ゼロ・エネルギー建築のためのエネルギー負荷削減モデリング枠組み：事例研究
Modelling Framework for Reducing Energy Loads to Achieve Net-Zero Energy Building in Semi-Arid Climate: A Case Study (原題)
Azam, Umair, Farooq, Muhammad, Munir, Muhammad Adeel, Riaz, Fahid, Sultan, Muhammad, Rehman, Ateekh Ur, Imran, Muhammad
🤖 gxceed AI 要約
日本語
本研究は、財政制約のある経済において低コストの改修で既存建物のエネルギー消費を大幅に削減できることを示す。パキスタンの教育施設を対象に、機器の効率化と太陽光発電の導入をモデル化し、冷房負荷を767kWから408kWに削減、投資回収期間は2.5年、太陽光を含めると5.7年でネット・ゼロ・エネルギー建築が達成可能と結論付けた。
English
This study demonstrates that low-cost retrofits can significantly reduce building energy consumption in financially strained economies. Modeling an institutional building in Pakistan, it shows cooling load reduction from 767 kW to 408 kW with a 2.5-year payback, and adding solar PV achieves net-zero with a 5.7-year payback.
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普及が進むが、既存建物の改修と太陽光併設によるNZEB実現の具体的な投資回収データは参考になる。特に中小企業や自治体の施設更新に際し、費用対効果の高い改修計画の立案に役立つ。
In the global GX context
This case study provides empirical evidence on cost-effective retrofits for net-zero buildings in semi-arid climates, relevant to global efforts on building decarbonization and energy efficiency, especially in developing economies.
👥 読者別の含意
🔬研究者:Provides a modeling framework combining HAP and SAM for retrofit analysis, useful for similar studies in other climates.
🏢実務担当者:Offers concrete payback periods for energy-efficient retrofits and solar integration, aiding investment decisions.
🏛政策担当者:Highlights the potential of low-cost retrofits to achieve net-zero targets, informing building codes and incentive programs.
📄 Abstract（原文）
Buildings consume a significant 40% of global energy, where, reducing the building energy consumption to a minimum, virtually zero, has become a thriving research area. Accordingly, this research aimed to determine and portray the huge potential of energy conservation in existing structures by making a retrofit at relatively low costs in finance strained economies. A walk-through of the survey of energy consuming appliances determined the energy consumption based on the power rating; the appliances were then virtually replaced and the reduced energy consumption was determined in terms of the cooling loads. Modelling these intervention using the hourly analysis program (HAP) showed significantly positive results. The pre- and post-retrofit model analysis of an institutional building in Pakistan exhibited significant potential for reducing the cooling load of 767 kW (218 TON) to 408 kW (116 TON) with an investment payback period of 2.5 years. The additional benefit is the reduced greenhouse gas (GHG) emissions which reduce the overall energy requirements. The study continues with the design of a solar energy source using the system advisor model (SAM) for the reduced energy demand of a retrofitted building. It is then concluded that using the available area, a solar energy source with a capital payback period of 5.7 years would bring an institutional building within its own energy footprint making it a net-zero building, since it will not be consuming energy from any other source outside of its own covered area. The study has the limitation to exposure and climate related conditions. In addition, the decline in heating and cooling loads represents model values which may vary when calculated after an actual retrofit for the same structure due to any site related issues.
🔗 Provenance — このレコードを発見したソース
- base https://publications.aston.ac.uk/id/eprint/45710/first seen 2026-09-01 12:01:33
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