CFD simulation on indirect dry cooling towers of an incorporate three-tower system

MENG Derun; ZHANG Hongbo; ZHANG Qing

doi:10.13205/j.hjgc.202511013

Volume 43 Issue 11

Nov. 2025

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Article Navigation > ENVIRONMENTAL ENGINEERING > 2025 > 43(11): 115-122

MENG Derun, ZHANG Hongbo, ZHANG Qing. CFD simulation on indirect dry cooling towers of an incorporate three-tower system[J]. ENVIRONMENTAL ENGINEERING , 2025, 43(11): 115-122. doi: 10.13205/j.hjgc.202511013

Citation:

MENG Derun, ZHANG Hongbo, ZHANG Qing. CFD simulation on indirect dry cooling towers of an incorporate three-tower system[J]. ENVIRONMENTAL ENGINEERING , 2025, 43(11): 115-122. doi: 10.13205/j.hjgc.202511013

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CFD simulation on indirect dry cooling towers of an incorporate three-tower system

doi: 10.13205/j.hjgc.202511013

1. FORCE Technology (Beijing) Co., Ltd., Beijing 100020, China;
2. Hainan Vocational University of Science and Technology, Haikou 571126, China;
3. China Datang Group Technology Innovation Co., Ltd., Xiongan 071800, China

Received Date: 2023-04-11
Accepted Date: 2023-05-30
Rev Recd Date: 2023-05-12

Available Online: 2026-01-09

Abstract

Abstract

The incorporation technology， the three-tower system of indirect dry cooling tower， FGD， and exhaust flue gas stack in power plants has developed rapidly， especially in Northwest China. It has advantages including energy saving， water saving， and environmental protection. But there is no operating experience of the three-tower system for 1000 MW power plants and cooling towers higher than 200 m. Due to the large volume of the two air cooling towers and their close proximity， there is no relevant practical experiences on their mutual impact and surrounding tall buildings’ impact on their performance. Therefore， numerical simulation methods were proposed. Through numerical simulation， a detailed calculation was conducted on the air cooling system of a 2×1000 MW unit， to analyze the impacts of winds with different directions and speeds in summer， surrounding tall buildings， and cooling tower spacing on the airflow field inside the tower and the thermal performance of the radiator， as well as the safety of the unit. The results indicated that the wind affects the airflow velocity and temperature distribution inside the cooling tower obviously， different wind speeds and directions had different influences on heat transfer， and there will be reverse flow and penetrating flow when the wind speed was higher than 16 m/s； the surrounding tall buildings also had some protective effect for the cooling towers； both will affect the heat transfer and the flue gas exhaust. Under the extreme condition， the back pressure of the boiler raised， the maximum back pressure was 32.2 kPa， which was still lower than the warning limit value of 48 kPa， and within the controllable range， then the boiler can operate safely.
- incorporate three-tower system,
- numerical simulation,
- indirect dry cooling tower

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References(15)

References

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