Study on the Influence of Circulating Water Bypass on the Thermal and Anti-Freezing Characteristics of High-Level Wet Cooling Tower

Zhonghua Wang, Zenggang Yue, Wei Wang, Chenghui Ma, Xiaoguang Li (), Changmin Guo and Yuanbin Zhao ()
Additional contact information
Zhonghua Wang: Jining Huayuan Thermal Power Co., Ltd., Jining 272113, China
Zenggang Yue: Jining Huayuan Thermal Power Co., Ltd., Jining 272113, China
Wei Wang: Jining Huayuan Thermal Power Co., Ltd., Jining 272113, China
Chenghui Ma: Jining Huayuan Thermal Power Co., Ltd., Jining 272113, China
Xiaoguang Li: Ji’nan Lanchen Energy Technology Co., Jinan 250101, China
Changmin Guo: Ji’nan Lanchen Energy Technology Co., Jinan 250101, China
Yuanbin Zhao: School of Energy and Power Engineering, Shandong University, Jinan 250061, China

Energies, 2024, vol. 17, issue 9, 1-12

Abstract: When heating units are operated in winter, the extreme conditions, such as deep peak regulation and large extraction, can easily lead to a low unit load and severe icing in the wet cooling tower, which threatens the safe operation of the unit. Therefore, it is necessary to study the anti-freezing characteristics of the wet cooling tower. In this paper, a three-dimensional numerical model of a high-level, natural draft wet cooling tower is developed based on the constant heat load method. The influence of withdrawing a certain percentage of circulating water into the bypass on the cooling performance and anti-freezing characteristics of the high-level, natural draft wet cooling tower is investigated. The results show that as the percentage of circulating water bypass extraction increases, the temperature drop of circulating water in the tower continues to increase, but the lowest and the average water temperatures at the bottom of the packing continue to decrease. At the same time, the amount of circulating water entering the tower decreases, the pressure difference between the inside and outside of the tower under the same environmental conditions decreases, and the pumping force of the cooling tower decreases. If the circulating water bypass extraction percentage is less than 10%, it can prevent the circulating water from freezing at the bottom of the packing and, at the same time, try to reduce the temperature of the circulating water entering the condenser to ensure the efficiency of the unit.

Keywords: bypass; constant heat load; anti-freezing; wet cooling tower; CFD (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2024
References: View references in EconPapers View complete reference list from CitEc
Citations:

Downloads: (external link)
https://www.mdpi.com/1996-1073/17/9/2073/pdf (application/pdf)
https://www.mdpi.com/1996-1073/17/9/2073/ (text/html)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:gam:jeners:v:17:y:2024:i:9:p:2073-:d:1383747

Access Statistics for this article

Energies is currently edited by Ms. Agatha Cao

More articles in Energies from MDPI
Bibliographic data for series maintained by MDPI Indexing Manager ().