Numerical evaluation of heat transfer in corrugated heat exchangers

被引：0

作者：

Chorak, Aicha ^{[1
]}

Ihringer, Ernest ^{[1
]}

Ben Abdellah, Abdellatif ^{[1
]}

Dhimdi, Said ^{[2
]}

Essadiqi, El Hachmi ^{[3
]}

Bouya, Mohsine ^{[3
]}

Faqir, Mustapha ^{[3
]}

机构：

[1] Abdelmalek Essaadi Univ, Innovat & Management Ind Syst FST, Engn Res Team, Tangier, Morocco

[2] Dept Electromech IEPSCF Uccle, Brussels, Belgium

[3] Int Univ Rabat, Renewable Energy & Adv Mat Lab REAM, Sale, Morocco

来源：

2014 INTERNATIONAL RENEWABLE AND SUSTAINABLE ENERGY CONFERENCE (IRSEC) | 2014年

关键词：

Heat transfer coefficient (HTC); turbulent flow; corrugated tube; k e model; Computational Fluid Dynamics (CFD); TUBES;

D O I：

暂无

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

in this study, we carried out several simulations by investigating numerically an important geometrical factor in the corrugated tubes, very known in heat exchangers technology and applied in solar and desalination plants, specifically we focused our interest on the influence of the pitch length parameter over the heat transfer in these tubes using CFO (ANSYS/FLOTRAN). The used duct is a cylindrical pipe and the hecklers are spherical cavities. The 2d axisymmetric model is used and the model k -epsilon turbulence is adopted. The working fluid is water, and the usual boundary conditions such as outlet pressure and wall temperature are fixed. Based on the numerical results obtained in this study, it is found that for small pitches, the grooves produce more turbulence but away from the walls, unlike the case of large pitch. Besides, the variation of the heat transfer efficiency according to the pitch length for various velocities is presented and analyzed. It is revealed that the positive effect of the pitch is not always found.

引用

页码：401 / 406

页数：6

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