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ABSTRACT
The method of Computational Fluid Dynamics (CFD) simulation has been extensively employed in the stack and tower integration technology (STIT) research; however, a significant number of studies overlooked the impact of thermal buoyancy on the external flow field of cooling tower. In light of this, an improved approach is proposed in this study. A model of a cooling tower and its surrounding flow field was established, and its reliability was confirmed too. Based on our model, the performance of three enhancement strategies under various crosswind speeds and ambient temperatures was simulated. The results indicate that all three enhancement strategies can effectively simulate the effects of thermal buoyancy. In the simulations, the elevation of the flue gases increased from 306 m to either 426 m or 476 m. In the present study, ambient conditions characterized by crosswind speeds below 4 m/s and temperatures below 297.15 K were deemed suitable for the dispersion of stack and tower integration (STI) flue gases. A power function distribution was identified between crosswind speed and the mean height of the plume, while a linear relationship was observed between ambient temperature and the mean height of the plume.
Disclosure statement
No potential conflict of interest was reported by the author(s).
Data availability statement
The datasets generated and/or analyzed during this study are available upon reasonable request from the corresponding author.
Authorship statement
Author 1 (First Author): Conceptualization, Methodology, Software, Investigation, Formal Analysis, Writing – Original Draft;
Author 2: Data Curation, Writing – Original Draft;
Author 3: Writing – Original Draft, Investigation;
Author 4: Resources, Supervision;
Author 5: Software, Validation;
Author 6: Software, Validation;
Author 7: Visualization, Writing – Review & Editing;
Author 8 (Corresponding Author): Conceptualization, Funding Acquisition, Resources, Supervision, Writing – Review & Editing.
Additional information
Funding
Notes on contributors
Shuqiao Xu
Shuqiao Xu is a master’s student at North China Electric Power University, focusing on computational fluid dynamics simulation of flue gas.
Wentong Chen
Wentong Chen is a senior engineer at ShenZhen Energy Baoding Power Co., Ltd., engaged in the management of coal-fired power plant boilers and environmental protection equipment.
Qiang Xie
Qiang Xie is a doctoral student at North China Electric Power University, focusing on advanced treatment of wastewater from coal-fired power plants.
Anliang Sun
Anliang Sun is an engineer at ShenZhen Energy Baoding Power Co., Ltd., involved in the management of coal-fired power plant equipment.
Zhonglin Xia
Zhonglin Xia is a master’s student at North China Electric Power University, focusing on exhaust gas treatment in power systems.
Zhongsheng Wu
Zhongsheng Wu is the General Manager and Engineer at ShenZhen Energy Baoding Power Co., Ltd., responsible for the production management of coal-fired power plants.
Jingxiang Ma
Jingxiang Ma is a doctoral student at North China Electric Power University, focusing on exhaust gas treatment in power systems.
Shuangchen Ma
Shuangchen Ma is a professor of environmental engineering at North China University of Electric Power, China. Mr. Ma majors in Coal-fired pollution control, such as desulfurization and denitrification, carbon reduction, desulfurization wastewater treatment, and high-temperature and high-pressure water chemistry. He has published 3 Chinese monographs and more than 150 SCI and EI papers. He has been responsible for 2 National Natural Science Foundation of China, 2 sub-projects of the National Key Research and Development Program, 1 key special project in Hebei Province, and several crosswise tasks. And he has received 5 provincial and ministerial awards and over 20 authorized patents.