Abstract
Future building renovations must rely on a holistic perspective in relation to sustainability. This paper presents a Decision Support Systems (DSS) that can be used by architects and engineering consultants to generate and evaluate the sustainability of renovation scenarios in a holistic manner during the early design stage of renovation projects. Firstly, this paper discusses both the notion of a sustainable renovation, together with various renovation approaches, towards the appreciation of the developing DSS for the generation of holistic scenarios. Secondly, it provides details about the mechanism and types of Multiple Criteria Decision Making methods to be exploited in the main body of the DSS. As such, a hybrid approach including a search algorithm with the Genetic Algorithm is used to combine and develop countless optimal scenarios. The performance of the generated scenarios is simulated and evaluated in terms criteria for Energy Consumption, Investment Cost, and Thermal Indoor Comfort. The trade-off between the criteria is addressed using the Pareto-front approach, and subsequently, the optimal scenarios are determined and selected using MCDM-based rating methods. The outcome is verified discussing a case study about an actual [recently] renovated dwelling and the top ranked generated scenarios using the DSS in this paper.
Highlights
The renovation of existing buildings plays a crucial role in reducing energy consumption and greenhouse gas emissions in the building sector and the built environment
We lean on the conceptual design framework entitled Tectonic Sustainable Building Design (TSBD) from the study by Kamari et al [18], in which the authors address the TSBD for the development of holistic renovation scenarios
The application of methodologies and methods in the early design stages for interdisciplinary collaborations in renovation projects plays a significant role in coping with the multiple criteria, i.e., energy efficiency and indoor comfort, together with the existing interactions and trade-offs between them
Summary
The renovation of existing buildings plays a crucial role in reducing energy consumption and greenhouse gas emissions in the building sector and the built environment. The extent of the potential for energy improvements within the building renovation field can be described and made up in several ways [5]. This can happen with a focus on climatic interests, security of supplies, environmental impacts, life-cycle cost, indoor climate, building functionality, spatial quality, etc. When all of these interventions are summated, they can move the renovation case towards the goal of overall sustainability that demands the development of holistic renovation scenarios
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