Mohammad Hossein Yazdi; Евгений Викторович Соломин; Ahmad Fudholi; Kamaruzzaman Sopian; Perk Lin Chong · 10.1016/j.tsep.2021.101127 https://doi.org/10.1016/j.tsep.2021.101127
Thermal Science and Engineering Progress
Numerical analysis of the performance of a hybrid solar chimney system with an integrated external thermal source Mohammad Hossein Yazdi; Евгении Викторович Соломин; Ahmad Fudholi; Kamaruzzaman Sopian; Perk Lin Chong In this study, a three-dimensional hybrid solar chimney with an integrated external thermal source is developed to complements the solar energy for uninterruptible power generation using flue gas channels as a supply source in the collector. The hybrid system is examined numerically using ANSYS Fluent software including a solar air collector with a diameter of 6 m, a 6.65-meter-long chimney, and four thermal channels. The timetable is set for different hours, namely for two modes, i.e. without flue gas during daytime (1st Case), with flue gas during daytime (Case 2-A), and with flue gas during night (Case 2-B). Moreover, the turbine effect in different day hours and with different heat sources during night are applied. The numerical method is validated by comparing its results with previous works based on different chimney heights. The present results show that the hybrid approach increases system performance significantly. Simulation is done in thermal channel with 0.0015 kg/s in chimney temperature of 116 °C. The results indicate that mass flow rate and power increased by 7.63% and 11.48%, respectively, compared to the mode with no flue gas. This study proved that the proposed method can eliminate the night defect and allow the operation of solar chimney power plants at night.
Hybrid system
Numerical / CFD
Solar chimney power plant
2021
Thermal Science and Engineering Progress
no
2021-10-31 12:00:00 00002413
numerical analysis of the performance of a hybrid solar chimney system with an integrated external thermal source
2021
Thermal Science and Engineering Progress
Mohammad Hossein Yazdi; Евгений Викторович Соломин; Ahmad Fudholi; Kamaruzzaman Sopian; Perk Lin Chong
10.1016/j.tsep.2021.101127
Abstract
In this study, a three-dimensional hybrid solar chimney with an integrated external thermal source is developed to complements the solar energy for uninterruptible power generation using flue gas channels as a supply source in the collector. The hybrid system is examined numerically using ANSYS Fluent software including a solar air collector with a diameter of 6 m, a 6.65-meter-long chimney, and four thermal channels. The timetable is set for different hours, namely for two modes, i.e. without flue gas during daytime (1st Case), with flue gas during daytime (Case 2-A), and with flue gas during night (Case 2-B). Moreover, the turbine effect in different day hours and with different heat sources during night are applied. The numerical method is validated by comparing its results with previous works based on different chimney heights. The present results show that the hybrid approach increases system performance significantly. Simulation is done in thermal channel with 0.0015 kg/s in chimney temperature of 116 °C. The results indicate that mass flow rate and power increased by 7.63% and 11.48%, respectively, compared to the mode with no flue gas. This study proved that the proposed method can eliminate the night defect and allow the operation of solar chimney power plants at night.
Abstract by the authors, reproduced under the CC BY-NC-ND 4.0 licence. Original publication via the link below.
Open source