Da Costa Duarte Daniela Carolina, Rosa-Jiménez Carlos
Universidad de Málaga - Escuela Técnica Superior de Arquitectura de Málaga. Campus El Ejido, Plaza El Ejido, nº 2, Málaga, Andalucía, 29013, Spain.
Heliyon. 2022 Mar 3;8(3):e09020. doi: 10.1016/j.heliyon.2022.e09020. eCollection 2022 Mar.
The Energy Performance of Buildings Directive (EPBD) requires the transformation of European buildings into nearly zero-energy buildings (nZEBs) before 2050 as a mitigation strategy against the imminent climate emergency. This paper aims to determine the cost-optimal nZEB reform strategy for Spanish university buildings located in the Mediterranean climate, evaluating the influence of the building's orientation on nZEB cost optimality. The present work carries out a case study on three similar buildings at the University of Málaga. The optimal cost-efficiency nZEB reform strategy is determined, rigorously maintaining the formal design of the building through energy simulations with Sefaira Systems software under the EPBD framework. Six reform options were proposed to determine the cost-optimal strategy meeting nZEB requirements for each building. The results show that the most profitable strategy is to improve the efficiency of the thermal envelope and the HVAC system, reducing the energy consumption of the studied buildings by 85-93%. Although a general strategy for nZEB renovations was identified, building orientation proved to be a governing factor in energy performance. As such, the cost-optimal reform strategy was found to be specific to each particular building.
《建筑能效指令》（EPBD）要求到2050年将欧洲建筑转变为近零能耗建筑（nZEBs），作为应对迫在眉睫的气候紧急情况的缓解策略。本文旨在确定位于地中海气候区的西班牙大学建筑的成本最优nZEB改造策略，评估建筑朝向对nZEB成本最优性的影响。本研究对马拉加大学的三座相似建筑进行了案例分析。通过在EPBD框架下使用Sefaira Systems软件进行能源模拟，严格保持建筑的形式设计，确定了成本效益最优的nZEB改造策略。提出了六种改造方案，以确定满足每栋建筑nZEB要求的成本最优策略。结果表明，最有利可图的策略是提高热围护结构和暖通空调系统的效率，将研究建筑的能耗降低85%-93%。虽然确定了nZEB翻新的总体策略，但建筑朝向被证明是能源性能方面的一个关键因素。因此，发现成本最优的改造策略因每栋特定建筑而异。
