Numerical simulations of solar chimney power plant with radiation model |
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| Affiliation: | 1. Department of Renewable Energies, Faculty of New Science and Technologies, University of Tehran, Tehran, Iran;2. Department of Energy Engineering, Science and Research Campus, Islamic Azad University, Tehran, Iran;1. Department of Renewable Energies, Faculty of New Science and Technologies, University of Tehran, Tehran, Iran;2. Department of Energy Engineering, Faculty of Environment and Energy, Science and Research branch, Islamic Azad University, Tehran, Iran;1. Department of Mechanics, Huazhong University of Science and Technology, Wuhan 430074, PR China;2. Hubei Key Laboratory for Engineering Structural Analysis and Safety Assessment, Wuhan 430074, PR China;1. Department of Mechanical Engineering, The University of Hong Kong, Pokfulam Road, Hong Kong, China;2. Locision Technology Limited, Thrive United IFC, Shilong South Road, Foshan, Guangdong 528200, China |
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| Abstract: | A three-dimensional numerical approach incorporating the radiation, solar load, and turbine models proposed in this paper was first verified by the experimental data of the Spanish prototype. It then was used to investigate the effects of solar radiation, turbine pressure drop, and ambient temperature on system performance in detail. Simulation results reveal that the radiation model is essential in preventing the overestimation of energy absorbed by the solar chimney power plant (SCPP). The predictions of the maximum turbine pressure drop with the radiation model are more consistent with the experimental data than those neglecting the radiation heat transfer inside the collector. In addition, the variation of ambient temperature has little impact on air temperature rise despite its evident effect on air velocity. The power output of the SCPP within the common diurnal temperature range was also found to be insensitive to ambient temperature. |
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| Keywords: | Solar chimney power plant Numerical simulation Radiation model Solar load model |
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