Tingzhen Ming; Haoyu Gui; Tianhao Shi; Hanbing Xiong; Yongjia Wu; Yimin Shao; Wei Li; Xiaohua Lü; Renaud Kiesgen de Richter · 10.1016/j.solener.2021.08.024 https://doi.org/10.1016/j.solener.2021.08.024
Solar Energy
Solar chimney power plant integrated with a photocatalytic reactor to remove atmospheric methane: A numerical analysis Tingzhen Ming; Haoyu Gui; Tianhao Shi; Hanbing Xiong; Yongjia Wu; Yimin Shao; Wei Li; Xiaohua Lu; Renaud Kiesgen de Richter Methane (CH4) is the second largest contributor to global warming among all greenhouses gases. A solar chimney power plant integrated with a photocatalytic reactor (SCPP-PCR) is a promising large-scale method for removing CH4 from the atmosphere. This study used computational fluid dynamics (CFD) to investigate the performance and factors influencing photocatalytic oxidation of methane by the SCPP-PCR system. The geometry of a SCPP is the same as the prototype of the SCPP built in Manzanares (Spain). The PCR is designed based on a honeycomb monolith photoreactor. The numerical results revealed that the SCPP-PCR system can degraded 21,312 g methane per day with the actual solar radiation data when the channel diameter of the honeycomb PCR was 4 mm and channel length was 8 m. Although increasing the length or decreasing the channel diameter of the PCR would improve photocatalytic efficiency, the rate of airflow of the system would be reduced. The maximum methane purification rate of the SCPP-PCR system was determined.
Hybrid system
Numerical / CFD
Solar chimney power plant
2021
Solar Energy
no
2021-08-19 12:00:00 00002441
solar chimney power plant integrated with a photocatalytic reactor to remove atmospheric methane: a numerical analysis
2021
Solar Energy
Tingzhen Ming; Haoyu Gui; Tianhao Shi; Hanbing Xiong; Yongjia Wu; Yimin Shao; Wei Li; Xiaohua Lü; Renaud Kiesgen de Richter
10.1016/j.solener.2021.08.024
Abstract
Methane (CH4) is the second largest contributor to global warming among all greenhouses gases. A solar chimney power plant integrated with a photocatalytic reactor (SCPP-PCR) is a promising large-scale method for removing CH4 from the atmosphere. This study used computational fluid dynamics (CFD) to investigate the performance and factors influencing photocatalytic oxidation of methane by the SCPP-PCR system. The geometry of a SCPP is the same as the prototype of the SCPP built in Manzanares (Spain). The PCR is designed based on a honeycomb monolith photoreactor. The numerical results revealed that the SCPP-PCR system can degraded 21,312 g methane per day with the actual solar radiation data when the channel diameter of the honeycomb PCR was 4 mm and channel length was 8 m. Although increasing the length or decreasing the channel diameter of the PCR would improve photocatalytic efficiency, the rate of airflow of the system would be reduced. The maximum methane purification rate of the SCPP-PCR system was determined.
Abstract by the authors, reproduced under the CC BY-NC-ND 4.0 licence. Original publication via the link below.
Open source