Research on water saving performance of a new type of demisting cooler for cooling towers

被引：1
作者：
Liu, Lei [1 ,2 ,3 ]
Xi, Ying [1 ,2 ,3 ]
Zhang, Lin [1 ,2 ,3 ,4 ]
Yu, Zhikang [1 ,2 ]
Sun, Cheng [1 ]
Yang, Lu [1 ,2 ,3 ]
Zhang, Zhifan [1 ,2 ,3 ]
Zhou, Chengman [1 ,2 ,3 ]
Dong, Kexin [1 ,2 ,3 ]
Liu, Kailu [1 ,2 ,3 ]
机构：
[1] Changzhou Univ, Sch Mech Engn & Rail Transit, Changzhou 213164, Peoples R China
[2] Jiangsu Changnuo Energy & Environm Protect Technol, Changzhou 213100, Peoples R China
[3] Xianglai Changzhou Energy Saving Technol Co Ltd, Changzhou 213000, Peoples R China
[4] Jiangsu Prov Engn Res Ctr High Level Energy & Powe, Changzhou 213000, Peoples R China
来源：
CHEMICAL ENGINEERING AND PROCESSING-PROCESS INTENSIFICATION | 2023年 / 192卷
关键词：
Cooling tower; Mist eliminator; Evaporation loss; Water saving; Comprehensive performance; POWER-PLANT; EFFICIENCY; DESIGN; OPTIMIZATION; CONDENSER; SYSTEM; MEDIA;
D O I：
10.1016/j.cep.2023.109488
中图分类号：
TE [石油、天然气工业]; TK [能源与动力工程];
学科分类号：
0807 ; 0820 ;
摘要：
During the operation of the cooling tower, a large amount of white mist will be generated due to drift, evapo-ration, and other reasons. The droplets condensed from white mist in winter are easy to freeze and adsorb at the outlet of the cooling tower, affecting the service life of the equipment and increasing operating costs. In order to reduce the mist, a new type of mist removal cooler was developed. The influence of the structure of the mist removal cooler (baffle spacing, cooling pipe diameter, and baffle vertical height) on resistance characteristics, droplet separation characteristics, and heat transfer characteristics was studied through numerical simulation and obtain surface regression equations related to all factors. The results showed that the mist removal cooler can effectively recover water vapor from wet air. The optimal structure of the demister cooler was determined to be a combination structure with a baffle plate placed on one side of the cooling tube, a plate spacing of 0.1 m, a pipe diameter of 0.03 m, and a vertical height of 0.1 m. This structure can separate 48.29% of droplets while recovering 18.62% of water vapor, with significant water-saving benefits.
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页数：19
相关论文
共 29 条
[1]   Parametric study on spray cooling system for optimising nozzle design with pre-cooling application in natural draft dry cooling towers [J].
Alkhedhair, Abdullah ;
Jahn, Ingo ;
Gurgenci, Hal ;
Guan, Zhiqiang ;
He, Suoying .
INTERNATIONAL JOURNAL OF THERMAL SCIENCES, 2016, 104 :448-460
[2]  
[Anonymous], 2009, ASHRAE HDB FUND
[3]   3E (Energy-Exergy-Economic) comparative study of integrating wet and dry cooling systems in solar tower power plants [J].
Boukelia, T. E. ;
Bouraoui, A. ;
Laouafi, A. ;
Djimli, S. ;
Kabar, Y. .
ENERGY, 2020, 200
[4]  
Buss J.R., 1968, POWER NY, V112, P1
[5]   AN IMPROVED METHOD FOR PREDICTING SEASONAL AND ANNUAL SHADOWING FROM COOLING-TOWER PLUMES [J].
CARHART, RA ;
POLICASTRO, AJ ;
DUNN, WE .
ATMOSPHERIC ENVIRONMENT PART A-GENERAL TOPICS, 1992, 26 (15) :2845-2852
[6]   Feasibility study for reduce water evaporative loss in a power plant cooling tower by using air to Air heat exchanger with auxiliary Fan [J].
Deziani, M. ;
Rahmani, Kh. ;
Roudaki, S. J. Mirrezaei ;
Kordloo, M. .
DESALINATION, 2017, 406 :119-124
[7]   Structural improvement to accelerate the start-up process of natural draft dry cooling towers in dispatchable power plants [J].
Dong, Peixin ;
Wang, Jianyong ;
Li, Xiaoxiao ;
Guan, Zhiqiang ;
Gurgenci, Hal ;
Hooman, Kamel .
APPLIED THERMAL ENGINEERING, 2020, 181
[8]   Cooling tower fog harvesting in power plants - A pilot study [J].
Ghosh, Ritwick ;
Ray, Tapan K. ;
Ganguly, Ranjan .
ENERGY, 2015, 89 :1018-1028
[9]   Selection of wetted media for pre-cooling of air entering natural draft dry cooling towers [J].
He, Suoying ;
Xu, Yi ;
Zhang, Guanhong ;
Hooman, Kamel ;
Gao, Ming .
APPLIED THERMAL ENGINEERING, 2017, 114 :857-863
[10]   Enhancing COP of an air-cooled chiller with integrating a water mist system to its condenser: Investigating the effect of spray nozzle orientation [J].
Heidarinejad, Ghassem ;
Moghaddam, Mohammad Reza As'adi ;
Pasdarshahri, Hadi .
INTERNATIONAL JOURNAL OF THERMAL SCIENCES, 2019, 137 :508-525
123