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Numerical simulation of cooling tower for low-temperature adsorption of co-fired flue gas
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Xinye WANG1, Ke LI1, Kenan HUANG1, Zifu SHI2, Pei LI2, Yonggang ZHOU2
Thermal Power Generation | 2025, 54(9) : 145 - 153
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Thermal Power Generation | 2025, 54(9): 145-153
• Thermal energy science research •
Numerical simulation of cooling tower for low-temperature adsorption of co-fired flue gas
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Xinye WANG1, Ke LI1, Kenan HUANG1, Zifu SHI2, Pei LI2, Yonggang ZHOU2
Affiliations
  • 1.Department of Energy and Environment System Engineering, Zhejiang University of Science and Technology, Hangzhou 310023, China
  • 2.State key Laboratory of Clean Energy Utilization, Zhejiang University, Hangzhou 310027, China
Published: 2025-09-25 doi: 10.19666/j.rlfd.202411239
Outline
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Low-temperature adsorption technology for coal-fired flue gas pollutants can synergistically remove various pollutants and achieve near-zero emission. Focusing on the key equipment of this technology, flue gas spray cooling tower, ANSYS Fluent software is used to simulate the inside of the tower, and the impacts of various parameters are analyzed. The results indicate that, increasing the spray height effectively extends the contact time between flue gas and cooling water, thus significantly enhances heat exchange. Reducing the temperature of the cooling water strengthens the tower’s cooling capacity. Additionally, moderately reducing the inlet flue gas velocity increases its residence time in the tower, promoting more thorough heat exchange. Reducing the droplet diameter of the cooling water enhances the heat transfer efficiency by increasing the contact area. Enlarging the spray angle extends the residence time of cooling water within the tower and lengthens the contact duration with flue gas, boosting heat exchange. Increasing the cooling water flow rate expands the heat exchange area, further improving the heat transfer performance. The addition of packing material improves the heat exchange capacity of the tower while conserving cooling water. Comprehensively optimizing these parameters can substantially reduce the temperature of cooled flue gas, providing theoretical support for the design, manufacturing, and optimization of spray cooling towers in the low-temperature adsorption technology for coal-fired flue gas pollutants.

low temperature adsorption  /  spray cooling tower  /  numerical simulation  /  multiphase flow
Xinye WANG, Ke LI, Kenan HUANG, Zifu SHI, Pei LI, Yonggang ZHOU. Numerical simulation of cooling tower for low-temperature adsorption of co-fired flue gas[J]. Thermal Power Generation, 2025 , 54 (9) : 145 -153 . DOI: 10.19666/j.rlfd.202411239
Funding
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  • National Key Research and Development Program(2022YFB4100202)
  • Youth Science Fund Project of Zhejiang University of Science and Technology(2023QN008; 2023QN028)
Appendix
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Year 2025 volume 54 Issue 9
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Article Info
doi: 10.19666/j.rlfd.202411239
  • Receive Date：2024-11-25
  • Online Date：2026-03-05
  • Published：2025-09-25
Article Data
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History
  • Received：2024-11-25
Funding
National Key Research and Development Program(2022YFB4100202)
Youth Science Fund Project of Zhejiang University of Science and Technology(2023QN008; 2023QN028)
Affiliations
    1.Department of Energy and Environment System Engineering, Zhejiang University of Science and Technology, Hangzhou 310023, China
    2.State key Laboratory of Clean Energy Utilization, Zhejiang University, Hangzhou 310027, China
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https://castjournals.cast.org.cn/joweb/rlfd/EN/10.19666/j.rlfd.202411239
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红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
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光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
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