Performance enhancement for the natural draft dry cooling tower under crosswind condition by optimizing the water distribution

被引：47

作者：

Li, Xiaoxiao ^{[1
]}

Xia, Lin ^{[2
]}

Gurgenci, Hal ^{[1
]}

Guan, Zhiqiang ^{[1
]}

机构：

[1] Univ Queensland, Sch Mech & Min Engn, Brisbane, Qld, Australia

[2] Hohai Univ, Coll Water Conservancy & Hydropower Engn, Nanjing, Jiangsu, Peoples R China

来源：

INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER | 2017年 / 107卷

关键词：

Natural draft dry cooling tower; Performance enhancement; Crosswind; Water distribution; THERMO-FLOW PERFORMANCES; VERTICAL DELTA RADIATORS; AMBIENT WINDS; EFFICIENCY; SYSTEM; SIMULATION; DESIGN; LAYOUT; WALLS;

D O I：

10.1016/j.ijheatmasstransfer.2016.11.046

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

Crosswind is a big challenge to the cooling performance of natural draft dry cooling towers (NDDCTs) and has attracted a lot of attention in previous research. This study proposed a new method to increase the performance of NDDCT under crosswind conditions by optimizing the hot water mass flow rate in the air-cooled heat exchangers. The 20 m UQ Gatton NDDCT was selected as a case study to test and validate this method. The cooling performance of this cooling tower under crosswind condition was evaluated by the 3-D CFD model. The results show that the crosswind redistributes the air flow and result in a non-uniform heat exchanger performance. By optimizing the hot water mass flow rate among the heat exchanger bundles, the cold fluids and hot fluids of the air-cooled heat exchanger can be better matched. The cooling performance of the NDDCT is increased by 18% when the crosswind speed is 4 m/s. (C) 2016 Elsevier Ltd. All rights reserved.

引用

页码：271 / 280

页数：10

共 35 条

[1] The performance of natural draft dry cooling towers under crosswind: CFD study [J].

Al-Waked, R ;

Behnia, M .

INTERNATIONAL JOURNAL OF ENERGY RESEARCH, 2004, 28 (02) :147-161

[2]

[Anonymous], APPL ENERGY

[3]

[Anonymous], 2012, TERMODINAMICA

[4] Comparison between evaporative cooling and a heat pipe assisted thermal loop for a commercial wind tower in hot and dry climatic conditions [J].

Calautit, John Kaiser ;

Chaudhry, Hassam Nasarullah ;

Hughes, Ben Richard ;

Ghani, Saud Abdul .

APPLIED ENERGY, 2013, 101 :740-755

[5] A novel layout of air-cooled condensers to improve thermo-flow performances [J].

Chen, Lei ;

Yang, Lijun ;

Du, Xiaoze ;

Yang, Yongping .

APPLIED ENERGY, 2016, 165 :244-259

[6] A robust stochastic approach for design optimization of air cooled heat exchangers [J].

Doodman, A. R. ;

Fesanghary, M. ;

Hosseini, R. .

APPLIED ENERGY, 2009, 86 (7-8) :1240-1245

[7] The effect of the heat exchanger arrangement and wind-break walls on the performance of natural draft dry-cooling towers subjected to cross-winds [J].

duPreez, AF ;

Kroger, DG .

JOURNAL OF WIND ENGINEERING AND INDUSTRIAL AERODYNAMICS, 1995, 58 (03) :293-303

[8]

engel Y.A., 2015, Heat and Mass Transfer: Fundamentals Applications

[9] Influence of non-uniform layout fillings on thermal performance for wet cooling tower [J].

Gao, Ming ;

Zhang, Lei ;

Wang, Ni-ni ;

Shi, Yue-tao ;

Sun, Feng-zhong .

APPLIED THERMAL ENGINEERING, 2016, 93 :549-555

[10] Alternative geometry for cylindrical natural draft cooling tower with higher cooling efficiency under crosswind condition [J].

Goodarzi, M. ;

Ramezanpour, R. .

ENERGY CONVERSION AND MANAGEMENT, 2014, 77 :243-249

← 1 2 3 4 →