Ma'bdeh Shouib Nouh, Ghani Yasmeen Abdull, Obeidat Laith, Aloshan Mohammed
Department of Architecture, Jordan University of Science and Technology, Irbid 22110, Jordan.
Department of Architectural Engineering, Imam Mohammad Ibn Saud Islamic University, Riyadh 11564, Saudi Arabia.
Heliyon. 2023 Feb 9;9(2):e13574. doi: 10.1016/j.heliyon.2023.e13574. eCollection 2023 Feb.
Climate change impacts have been increasingly noticeable worldwide, especially as energy concerns have increased. Because buildings consume significant amounts of energy, sustainably retrofitting existing buildings has become essential. However, several countries are pretty concerned about the affordability of retrofitting and energy conservation measures. Therefore, this research assesses the affordability of selected passive heating and cooling retrofitting strategies using the residual approach methodology. Specifically, this work studies the effects and efficiency of retrofitting the residential buildings in Irbid, Jordan, through life cycle analysis, where dynamic thermal simulation (IES-VE) is employed. This strategy determines the required heating and cooling loads, the life cycle carbon dioxide emissions, and the economic feasibility of retrofitting using the Net Present Value methodology. The results show that passive building retrofitting can generate considerable economic and environmental benefits. Additionally, the affordability assessment reveals that retrofitting measures are affordable for 73-78% of Jordanian households. Furthermore, retrofitting makes the energy required for building conditioning affordable for 82.8-85.8% of households. This affordability assessment proved that the initial investment cost of retrofitting is the major obstacle to implementing it, especially for low-income households, despite the long-term economic and environmental benefits of this process. Thus, governmental financial support for the retrofitting projects would support achieving the sustainable development goals and mitigating climate change impacts.
气候变化的影响在全球范围内日益显著，尤其是随着能源问题日益突出。由于建筑物消耗大量能源，对现有建筑进行可持续改造变得至关重要。然而，一些国家非常关注改造和节能措施的可承受性。因此，本研究采用剩余方法评估选定的被动供暖和制冷改造策略的可承受性。具体而言，这项工作通过生命周期分析研究了约旦伊尔比德住宅建筑改造的效果和效率，其中采用了动态热模拟（IES-VE）。该策略确定了所需的供暖和制冷负荷、生命周期二氧化碳排放量以及使用净现值方法进行改造的经济可行性。结果表明，被动式建筑改造可以产生可观的经济和环境效益。此外，可承受性评估显示，改造措施对73%-78%的约旦家庭来说是可承受的。此外，改造使82.8%-85.8%的家庭用于建筑调节的能源变得可承受。这项可承受性评估证明，尽管改造过程具有长期的经济和环境效益，但改造的初始投资成本是实施改造的主要障碍，尤其是对低收入家庭而言。因此，政府对改造项目的财政支持将有助于实现可持续发展目标并减轻气候变化的影响。
