为解决管壳式换热器传热性能提升的同时伴随流体流动阻力增加的矛盾,提出了壳程流体"斜向流"的新概念,开发了具有导向型折流栅管束支撑结构的新型高效节能斜向流换热器,证明了在该类换热器壳程中流体速度场与温度梯度场具有良好的协同关系,具有显著的强化传热和降低流阻的性能.对其几何结构对传热和压降的影响规律进行了数值模拟研究,为其工程设计和推广应用提供了参考依据.
参考文献
| [1] | Zhang, J.-F.;Li, B.;Huang, W.-J.;Lei, Y.-G.;He, Y.-L.;Tao, W.-Q. .Experimental performance comparison of shell-side heat transfer for shell-and-tube heat exchangers with middle-overlapped helical baffles and segmental baffles[J].Chemical Engineering Science,2009(8):1643-1653. |
| [2] | Yong-Gang Lei;Ya-Ling He;Rui Li .Effects of baffle inclination angle on flow and heat transfer of a heat exchanger with helical baffles[J].Chemical Engineering and Processing,2008(12):2336-2345. |
| [3] | 张少维,桑芝富.结构和操作参数对螺旋折流板换热器性能影响[J].石油化工设备,2004(03):17-20. |
| [4] | 古新 .管壳式换热器数值模拟与斜向流换热器研究[D].郑州大学,2006. |
| [5] | Z.Y. Guo;W.Q. Tao;R.K. Shah .The field synergy (coordination) principle and its applications in enhancing single phase convective heat transfer[J].International Journal of Heat and Mass Transfer,2005(9):1797-1807. |
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