Performance simulation of a parabolic trough solar collector |
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| Authors: | Weidong Huang Peng Hu Zeshao Chen |
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| Affiliation: | 1. Department of Earth and Space Science, University of Science and Technology of China, 96 Jinzhai Road, Hefei, Anhui 230026, China;2. Department of Thermal Science and Energy Engineering, University of Science and Technology of China, 96 Jinzhai Road, Hefei, Anhui 230026, China;1. Department of Earth Chemistry and Environmental Science, University of Science and Technology of China, 96 Jinzhai Road, Hefei, Anhui 230026, China;2. Department of Thermal Science and Energy Engineering, University of Science and Technology of China, 96 Jinzhai Road, Hefei, Anhui 230026, China;1. Department of Earth and Space Science, University of Science and Technology of China, 96 Jinzhai Road, Hefei, Anhui 230026, China;2. Department of Thermal Science and Energy Engineering, University of Science and Technology of China, 96 Jinzhai Road, Hefei, Anhui 230026, China;1. Department of Earth Chemistry and Environmental Science, University of Science and Technology of China, 96 Jinzhai Road, Hefei, Anhui 230026, China;2. Department of Thermal Science and Energy Engineering, University of Science and Technology of China, 96 Jinzhai Road, Hefei, Anhui 230026, China |
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| Abstract: | A new analytical model for optical performance and a modified integration algorithm are proposed and applied to simulate the performance of a parabolic trough solar collector with vacuum tube receiver. The analytical equation for optical efficiency of each point at reflector is derived first, then the optical efficiency of the system is simulated by numerical integration algorithm. The cosine factor, receiver efficiency, heat loss and efficiency of conversion of solar energy into net heat energy at any time can be calculated with the program. The annual average efficiency is also simulated considering discard loss. The effects of optical error, tracking error, position error from installation of receiver, optical properties of reflector, transmittance and absorptivity of vacuum tube receiver on efficiencies of the trough system are simulated and analyzed as well as optical parameter. |
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