Crosswinds Effect on the Thermal Performance of Wet Cooling Towers Under Variable Operating Conditions

Chen, You Liang; Shi, Yong Feng; Hao, Jian; Chang, Hao Teng; Sun, Feng

doi:10.1088/1755-1315/114/1/012007

Cited by 2 publications

(2 citation statements)

References 4 publications

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“…Al-Waked and Behnia [8] pointed out that regardless of the direction of the crosswind, the outlet water temperature will increase by about 1.30 • C, when the crosswind speed exceeds 4 m/s. Chen et al [9,10] investigated the effect of crosswind on the cooling performance of wet cooling towers through thermal experiments. The results showed that there was a critical value for the cooling performance with the change in the crosswind speed, and the dimensionless value of the critical crosswind speed was provided.…”

Section: Introductionmentioning

confidence: 99%

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

Wang,

Yue,

Wang

et al. 2024

Energies

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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.

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Section: Introductionmentioning

confidence: 99%

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

Wang,

Yue,

Wang

et al. 2024

Energies

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“…It has been reported that for a NDDCT, the thermal performance of the tower could drop significantly and certain parts of the cooling tower may even stop functioning under crosswind conditions [26][27][28][29]. The crosswind has a less but still significant effect on wet cooling towers [30][31][32]. The research of the crosswind effect on natural draft cooling towers has attracted a lot of attention in the past few decades.…”

Section: Introductionmentioning

confidence: 99%

A review of the crosswind effect on the natural draft cooling towers

Gurgenci

Guan

et al. 2019

Applied Thermal Engineering

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Crosswind is a significant concern for the design and operation of a natural draft cooling tower. The negative effects of crosswind on the thermal performance of natural draft cooling towers have been shown in many cases, for a variety of tower types. This paper presents a comprehensive review to synthesize the current research status in this field. At first, three common cooling tower research methods used to quantify the crosswind effect: full-scale/field measurements, lab-scale tests and CFD modelling, are reviewed and discussed. Then, based on the existing literature, the crosswind effect and its working mechanism on different types of natural draft cooling towers are summarized and discussed. Finally, the most current findings and solutions to address the crosswind issue are reported. The main advantages and disadvantages of each solution are presented and discussed. The information collected in this review paper could be a useful guidance for the design and optimization of natural draft cooling tower.

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Crosswinds Effect on the Thermal Performance of Wet Cooling Towers Under Variable Operating Conditions

Cited by 2 publications

References 4 publications

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

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

A review of the crosswind effect on the natural draft cooling towers

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