Numerical simulation of flow-through heat exchanger having helical flow passage using high order accurate solution dependent weighted least square based gradient calculations

被引:18
作者
Chandrakant, Sonawane [1 ]
Panchal, Hitesh [2 ]
Sadasivuni, Kishor Kumar [3 ]
机构
[1] Symbiosis Int Deemed Univ, Symbiosis Inst Technol, Dept Mech Engn, Pune, Maharashtra, India
[2] Govt Engn Coll Patan, Dept Mech Engn, Patan, Gujarat, India
[3] Qatar Univ, Ctr Adv Mat, Doha, Qatar
关键词
Heat exchanger; incompressible flow; helical flow; solution dependent weighted least square; artificial compressibility method; CFD simulation; PRESSURE-DROP; DESIGN;
D O I
10.1080/15567036.2021.1900457
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
Improving the fluid flow and heat transfer characteristics of a heat exchanger has always been desired for any heat transferring application. Various active, passive, and combined methods were adopted for heat transfer improvements by different heat exchangers. Here, an investigation on an annulus heat exchanger having a helical flow passage - known as a helixchanger is presented. A continuous helical fin is inserted in an annulus region which forces the fluid to flow in a helical manner. This helixchanger is planned to be used as a part of the absorber in a solar-assisted vapor absorption refrigeration system. In this paper, a high-order accurate numerical simulation of the three-dimensional flow through a helixchanger is presented. Three-dimensional Navier-Stokes equations for unsteady incompressible flows are written in artificial compressibility formulation. The convective fluxes at the cell interface are estimated using Harten Lax and van Leer with Contact for artificial compressibility Riemann solver. The high order accuracy over unstructured meshes is obtained by finding the gradient using solution-dependent weighted least squares approach. The flow-through helixchanger is simulated for various Reynolds numbers (Re = 1500-6500), corresponding pressure drop, and the average heat transfer coefficient is presented. It has been observed that, due to the helical flow path, the flow becomes naturally turbulent, thereby helping in increasing heat transfer. The experimental setup is also developed, and the numerical results are validated against the experimental results. A correlation is also proposed for the heat transfer through the helical flow path.
引用
收藏
页数:26
相关论文
共 48 条
[1]   Flow and heat transfer enhancement in tube heat exchangers [J].
Ahmed, Sayed Ahmed E. Sayed ;
Mesalhy, Osama M. ;
Abdelatief, Mohamed A. .
HEAT AND MASS TRANSFER, 2015, 51 (11) :1607-1630
[2]   Evaluation of heat transfer and exergy loss in a concentric double pipe exchanger equipped with helical wires [J].
Akpinar, Ebru Kavak .
ENERGY CONVERSION AND MANAGEMENT, 2006, 47 (18-19) :3473-3486
[3]   Heat transfer enhancement - The encouragement and accommodation of high heat fluxes [J].
Bergles, AE .
JOURNAL OF HEAT TRANSFER-TRANSACTIONS OF THE ASME, 1997, 119 (01) :8-19
[4]  
Bischof, 1999, LAPACK USERS GUIDE
[5]   Thermal characteristics of air-water two-phase flow in a vertical annularly corrugated tube [J].
Cao, Yan ;
Phong Thanh Nguyen ;
Jermsittiparsert, Kittisak ;
Belmabrouk, Hafedh ;
Alharbi, Sayer O. ;
Khorasani, Mir Saleh .
JOURNAL OF ENERGY STORAGE, 2020, 31 (31)
[6]   Optimization of a finned concentric pipes heat exchanger for industrial recuperative burners [J].
Cavazzuti, Marco ;
Agnani, Elia ;
Corticelli, Mauro A. .
APPLIED THERMAL ENGINEERING, 2015, 84 :110-117
[7]   Numerical simulation on flow field in circumferential overlap trisection helical baffle heat exchanger [J].
Chen, Ya-Ping ;
Sheng, Yan-Jun ;
Dong, Cong ;
Wu, Jia-Feng .
APPLIED THERMAL ENGINEERING, 2013, 50 (01) :1035-1043
[8]   NUMERICAL SOLUTION OF NAVIER-STOKES EQUATIONS [J].
CHORIN, AJ .
MATHEMATICS OF COMPUTATION, 1968, 22 (104) :745-&
[9]  
Choudhari SS, 2013, Int. J. Comput. Eng. Res., V3, P32
[10]  
Davis E.S., 1943, ASME, P755