Thermoeconomic optimization of insulation thickness considering condensed vapor in buildings |
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| Affiliation: | 1. Department of Energy, Politecnico di Torino, TEBE Research Group, Turin, Italy;2. Vimark srl Peveragno, Cuneo, Italy;1. Division of Building Physics, Department of Building and Environmental Technology, Lund University, SE-22363, Lund, Sweden;2. Division of Building Technology, Department of Architecture and Civil Engineering, Chalmers University of Technology, Gothenburg, Sweden;1. MINES ParisTech, PSL Research University, PERSEE – Centre procédés, énergies renouvelables et systèmes énergétiques, CS 10207 rue Claude Daunesse 06904 Sophia Antipolis Cedex, France;2. CEA-INES, LEB—Building Energy Lab, 50 av. du Lac Léman, 73377 Le Bourget du Lac, France;3. Department of Mathematics and Interactions, University of Nice Sophia-Antipolis, Nice, France;4. Centre Scientifique et Technique du Bâtiment, CSTB, 24, rue Joseph Fourier, 38400 Saint Martin d’Hères, France;1. School of architecture, State Key Laboratory of Subtropical Building Science, South China University of Technology, Guangzhou 510640, China;2. Chair of Building Construction and Material Science, Department of Architecture, Technical University of Munich, Munich 80333, Bayern, Germany;1. Centre for Energy Studies, Indian Institute of Technology, Delhi, Hauz Khas, New Delhi 110016, India;2. BAG Energy Research Society, Varanasi, India;3. Department of Agricultural Engineering, College of Food & Agricultural Sciences, King Saud Univ., P.O. Box 2460, Riyadh 11451, Saudi Arabia |
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| Abstract: | Developing technology and increasing population makes energy consumption more important. Most of energy is used for space heating in Turkey, consequently, insulation of external walls is too important. In the present work, optimum insulation thickness considering condensed vapor in existing buildings for Kutahya which is one of coldest cities in Turkey has been studied. The optimization is based on the thermoeconomic analysis. Since Kutahya is the most polluted city in Turkey, and the source of this pollution is energy consumption, it has become an obligation to save energy and to reduce its effects. In this study, exergy method with the different reference states which are normally available in a building has been used. The effect of condensed vapor on exergy also has been taken into account. The optimum insulation thickness determined as 0.060, 0.065, 0.075 m with a rate of 74.9%, 76.3% and 78.8% in the energy saving for indoor temperature of 18, 20 and 22 °C, respectively. Therefore, a decreasing in the air pollutants about at same rates has been obtained. |
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