Characteristic study on flue gas of a 'three-in-one' indirect air cooling tower

Autor: LI Jinfang, HAN Gaoyan, XIE Na, ZHANG Xiaoqing, WANG Zhi
Jazyk: čínština
Rok vydání: 2023
Předmět:
Zdroj: Zhejiang dianli, Vol 42, Iss 2, Pp 106-116 (2023)
Druh dokumentu: article
ISSN: 1007-1881
DOI: 10.19585/j.zjdl.202302014
Popis: Different unit loads affect the flow heat transfer characteristics and flue gas diffusion of a “three-in-one” indirect air-cooling system. A numerical study is carried out on the tower of a 1 000 MW unit. The results show that as the load increases, the extraction effect and ventilation capacity of the tower at 100% load are 1.47 and 1.3 times higher than those at 50% load, respectively. Moreover, the cooling capacity of the tower is larger at higher loads. Load increase can reduce the concentration of SO2 on the inner wall of the air-cooling tower and raise the lift height of flue gas. At 100% load, the SO2 concentration is reduced by 4.55 mg/m3, and the maximum flue gas diffusion height is raised by up to 16.72 m compared to 50% load.
Databáze: Directory of Open Access Journals