Theoretical and experimental analyses of solar-thermoelectric liquid-chiller system |
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| Affiliation: | 1. College of Chemistry, Research Center for Analytical Sciences, State Key Laboratory of Medicinal Chemical Biology (Nankai University), Tianjin Key Laboratory of Molecular Recognition and Biosensing, Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Nankai University, 94 Weijin Road, Tianjin 300071, China;2. State Key Laboratory of Medicinal Chemical Biology (Nankai University), College of Life Science, Nankai University, 94 Weijin Road, Tianjin 300071, China;3. The First Central Clinic College, Tianjin Medical University, and Department of Radiology, Tianjin First Central Hospital, 24 Fukang Road, Tianjin 300192, China;4. National Chromatographic Research and Analysis Center, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116011, China;1. Department of Architecture and Built Environment, Faculty of Engineering, University of Nottingham, University Park, NG7 2RD, Nottingham, UK;2. Cyprus International University, Faculty of Fine Arts, Design and Architecture, Department of Interior Architecture, Haspolat-Lefkoşa, Mersin 10, Turkey;3. Department of Mechanical Engineering, Eastern Mediterranean University, G. Magosa, TRNC Mersin 10, Turkey;1. Faculty of New Sciences and Technologies, University of Tehran, Tehran, Iran;2. School of Chemical Engineering and Technology, Xi''an Jiaotong University, Xi''an 710049, China;3. Department of Energy and Refrigerating Air-Conditioning Engineering, National Taipei University of Technology, Taipei 10608, Taiwan;1. Centre for Sustainable Energy Technologies, University of Hull, HU6 7RX, UK;2. School of Mechanical Engineering, Southwest Jiaotong University, Chengdu, Sichuan, PR China;1. Universidad de Navarra, Construction Building Services and Structures Department, Campus Universitario, 31080, Pamplona, Spain;2. Dept. of Materials Engineering, Ben-Gurion University of the Negev, Beer-Sheva, Israel |
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| Abstract: | A solar-thermoelectric liquid chiller (STLC) system is constructed and characterized using both theoretical and experimental analyses. A cold-plate (plate and tube type) heat exchanger, attached to the cold side of the STLC system, is utilized for removing the heat from the circulating water in the system. Analytical models include the thermoelectric Peltier effect, thermal convections in air and water, and conductions within the solid parts of the STLC system. Proposed analytical models are used to calculate different performance parameters (e.g., heat removal rate and coefficient of performance) of STLC system at different input electrical currents, temperature differences (between the bulk mean temperature of the liquid and the surrounding environmental temperature), and flow rates. Optimum values of the electrical current are calculated to achieve maximum heat removal rates for a wide range of temperature differences. It is observed that the heat removal rate by the STLC system increases with increasing bulk mean temperature of the water for considered ambient temperature conditions. However, small changes in the heat removal rate are observed when liquid flow rate changes inside the cold-plate heat exchanger. A prototype of the conditioned space is constructed to perform the experimental analysis. Experimental analysis includes the monitoring of the cooling down period of the water and conditioned space to achieve desired temperatures. |
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| Keywords: | Air-conditioning Cooling down period Coefficient of performance (COP) Liquid chiller Thermoelectric Solar PV Conditionnement d'air Période de refroidissement Coefficient de performance (COP) Refroidisseur de liquide Thermoélectrique Solaire photovoltaique |
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