Please use this identifier to cite or link to this item: doi:10.22028/D291-35228
Title: Multi-Objective Techno-Economic Optimization of Design Parameters for Residential Buildings in Different Climate Zones
Author(s): Usman, Muhammad
Frey, Georg
Language: English
Title: Sustainability
Volume: 14
Issue: 1
Publisher/Platform: MDPI
Year of Publication: 2021
Free key words: residential building
building envelope
multi-objective genetic algorithm
climate zone
multi-criteria decision making
DDC notations: 600 Technology
Publikation type: Journal Article
Abstract: The comprehensive approach for a building envelope design involves building performance simulations, which are time-consuming and require knowledge of complicated processes. In addition, climate variation makes the selection of these parameters more complex. The paper aims to establish guidelines for determining a single-family household’s unique optimal passive design in various climate zones worldwide. For this purpose, a bi-objective optimization is performed for twenty-four locations in twenty climates by coupling TRNSYS and a non-dominated sorting genetic algorithm (NSGA-III) using the Python program. The optimization process generates Pareto fronts of thermal load and investment cost to identify the optimum design options for the insulation level of the envelope, window aperture for passive cooling, window-to-wall ratio (WWR), shading fraction, radiation-based shading control, and building orientation. The goal is to find a feasible trade off between thermal energy demand and the cost of thermal insulation. This is achieved using multi-criteria decision making (MCDM) through criteria importance using intercriteria correlation (CRITIC) and the technique for order preference by similarity to ideal solution (TOPSIS). The results demonstrate that an optimal envelope design remarkably improves the thermal load compared to the base case of previous envelope design practices. However, the weather conditions strongly influence the design parameters. The research findings set a benchmark for energy-efficient household envelopes in the investigated climates. The optimal solution sets also provide a criterion for selecting the ranges of envelope design parameters according to the space heating and cooling demands of the climate zone.
DOI of the first publication: 10.3390/su14010065
Link to this record: urn:nbn:de:bsz:291--ds-352289
ISSN: 2071-1050
Date of registration: 19-Jan-2022
Faculty: NT - Naturwissenschaftlich- Technische Fakultät
Department: NT - Systems Engineering
Professorship: NT - Prof. Dr. Georg Frey
Collections:SciDok - Der Wissenschaftsserver der Universität des Saarlandes

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