Heat transfer improvement in a double pipe heat exchanger by means of perforated turbulators

被引：134
作者：
Sheikholeslami, M. [1 ]
Ganji, D. D. [1 ]
机构：
[1] Babol Univ Technol, Dept Mech Engn, Babol Sar, Iran
来源：
ENERGY CONVERSION AND MANAGEMENT | 2016年 / 127卷
关键词：
Perforated turbulators; CFD; Heat transfer; NSGA II; Pressure loss; Water to air heat exchanger; TRANSFER ENHANCEMENT; THERMAL PERFORMANCE; FREE-CONVECTION; SEMI-ANNULUS; NANOFLUID; WATER; FLOW; FIN; OPTIMIZATION; MICROCHANNEL;
D O I：
10.1016/j.enconman.2016.08.090
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
Forced convective turbulent hydrothermal analysis in a double pipe heat exchanger is presented experimentally. Perforated turbulators have been utilized in annulus region. Hot water makes the cold air in outer tube warmer. Various amounts of pitch ratio, open area ratio and Reynolds number are considered. Correlations for Nusselt number, thermal performance and Darcy friction factor are examined. NSGA II is utilized to optimize the design. Physical phenomena are shown by means of FVM. Results reveal that thermal performance enhances with augment of open area ratio. Temperature gradient reduces with augment of pitch ratio. The maximum value of thermal performance obtained at eta = 1.59 which is occurred for Re = 6000, lambda = 0.07, PR = 1.06. (C) 2016 Elsevier Ltd. All rights reserved.
引用
收藏
页码：112 / 123
页数：12
相关论文
共 30 条
[1]  
[Anonymous], 2006, Introduction to Heat Transfer
[2]   Enhancement of gas turbine power output using earth to air heat exchanger (EAHE) cooling system [J].
Barakat, S. ;
Ramzy, Ahmed ;
Hamed, A. M. ;
El Emam, S. H. .
ENERGY CONVERSION AND MANAGEMENT, 2016, 111 :137-146
[3]   Experimental and lattice Boltzmann simulated operation of a copper micro-channel heat exchanger [J].
Borquist, Eric ;
Thapa, Suvhashis ;
Weiss, Leland .
ENERGY CONVERSION AND MANAGEMENT, 2016, 117 :171-184
[4]   Experimental investigation on performances of trisection helical baffled heat exchangers for oil/water-water heat transfer [J].
Chen, Ya-Ping ;
Wang, Wei-han ;
Wu, Jia-Feng ;
Dong, Cong .
ENERGY CONVERSION AND MANAGEMENT, 2015, 101 :460-469
[5]   Microchannels enhanced by porous materials: Heat transfer enhancement or pressure drop increment? [J].
Dehghan, Maziar ;
Valipour, Mohammad Sadegh ;
Saedodin, Seyfolah .
ENERGY CONVERSION AND MANAGEMENT, 2016, 110 :22-32
[6]   An efficient and low resistant circumferential overlap trisection helical baffle heat exchanger with folded baffles [J].
Dong, Cong ;
Li, Dongshuang ;
Zheng, Youqu ;
Li, Guoneng ;
Suo, Yange ;
Chen, Yaping .
ENERGY CONVERSION AND MANAGEMENT, 2016, 113 :143-152
[7]   Performance study of desiccant coated heat exchanger air conditioning system in winter [J].
Ge, T. S. ;
Dai, Y. J. ;
Wang, R. Z. .
ENERGY CONVERSION AND MANAGEMENT, 2016, 123 :559-568
[8]   Experimental studies on heat transfer and thermal performance characteristics of thermosyphon solar water heating system with helical and Left-Right twisted tapes [J].
Jaisankar, S. ;
Radhakrishnan, T. K. ;
Sheeba, K. N. .
ENERGY CONVERSION AND MANAGEMENT, 2011, 52 (05) :2048-2055
[9]  
Kakac S., 2002, Heat exchanger selection,rating and thermal design, V2nd
[10]   Effect of chevron angle on heat transfer performance in plate heat exchanger using ZnO/water nanofluid [J].
Kumar, Vikas ;
Tiwari, Arun Kumar ;
Ghosh, Subrata Kumar .
ENERGY CONVERSION AND MANAGEMENT, 2016, 118 :142-154
123