Parametrical analysis of the design and performance of a solar heat pipe thermoelectric generator unit |
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| Authors: | Wei He Yuehong Su S.B. Riffat JinXin Hou Jie Ji |
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| Affiliation: | 1. Department of Thermal Science and Energy Engineering, University of Science and Technology of China, Hefei 230026, China;2. Institute of Sustainable Energy Technology, Department of Architecture and Built Environment, University of Nottingham, University Park, Nottingham NG7 2RD, UK |
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| Abstract: | This paper describes a solar heat pipe thermoelectric generator (SHP-TEG) unit comprising an evacuated double-skin glass tube, a finned heat pipe and a TEG module. The system takes the advantage of heat pipe to convert the absorbed solar irradiation to a high heat flux to meet the TEG operating requirement. An analytical model of the SHP-TEG unit is presented for the condition of constant solar irradiation, which may lead to different performance characteristics and optimal design parameters compared with the condition of constant temperature difference usually dealt with in other studies. The analytical model presents the complex influence of basic parameters such as solar irradiation, cooling water temperature, thermoelement length and cross-section area and number of thermoelements, etc. on the maximum power output and conversion efficiency of the SHP-TEG. Simulation based on the analytical model has been carried out to study the performance and design optimization of the SHP-TEG. |
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| Keywords: | Constant solar irradiation Heat pipe (HP) Thermoelectric generator (TEG) Parametrical analysis |
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