Pengfu Ding
ABSTRACT
Abstract: In this paper, the condensation heat transfer characteristics of light tubes and spiral finned tubes are studied by numerical analysis. The condensation characteristics of vertical spiral finned tube containing non-condensing gas vapor were explored, and the distribution of steam velocity, pressure and temperature near the wall of the heat transfer tube was analyzed. The enhanced heat transfer method of non-condensing gas vapor was obtained, which provided a theoretical basis for the enhanced heat transfer of steam condensation. The results show that the spiral finned tube can increase the heat exchange performance as high as 40%. The spiral fin can effectively increase the heat exchange area and reduce the thickness of the liquid film, which can impressively enhance the heat transfer performance.
- Ganguli A, Patel A G, Maheshwari N K. 2008. Theoretical modeling of condensation of steam outside different vertical geometries (tube, flat plates) in the presence of noncondensable gases like air and helium. Nuclear Engineering and Design, 2008,238(9):2328-2340Google Scholar
Cross Ref
- Jiaqi Tao, Hanyang Gu, Zhenqin Xiong, Xing Jiang, Yongcheng Xie. 2019. Investigation on transient thermal hydraulics of reduced scale passive residual heat removal heat exchanger in tank[J] . Annals of Nuclear Energy . 2019Google Scholar
- Jiaqi Tao, Hanyang Gu, Zhenqin Xiong, Xing Jiang, Yongcheng Xie. 2018. Parametric analysis of heat transfer rate of passive residual heat removal heat exchanger submerged in water tank[J] . Experimental Thermal and Fluid Science . 2018Google Scholar
- Daogang Lu, Yuhao Zhang, Xiaoliang Fu, Zhongyi Wang, Qiong Cao, Yanhua Yang. 2016. Experimental investigation on natural convection heat transfer characteristics of C-shape heating rods bundle used in PRHR HX[J] . Annals of Nuclear Energy . 2016Google Scholar
- Yuhao Zhang, Daogang Lu, Zheng Du, Xiaoliang Fu, Guanghao Wu. 2015. Numerical and experimental investigation on the transient heat transfer characteristics of C-shape rod bundles used in Passive Residual Heat Removal Heat Exchangers[J] . Annals of Nuclear Energy . 2015Google Scholar
- C.O. Popiel, J. Wojtkowiak, K. Bober. 2007. Laminar free convective heat transfer from isothermal vertical slender cylinder[J] . Experimental Thermal and Fluid Science . 2007 (2)Google Scholar
- T.L. Schulz. 2006. Westinghouse AP1000 advanced passive plant[J] . Nuclear Engineering and Design . 2006 (14)Google Scholar
- E. N. Sieder, G. E. Tate. 2002. Heat Transfer and Pressure Drop of Liquids in Tubes[J] . Industrial & Engineering Chemistry . 2002 (12)Google Scholar
- Rongfu Wen, Xuehu Ma, Yung-Cheng Lee, Ronggui Yang. 2018. Liquid-Vapor Phase-Change Heat Transfer on Functionalized Nanowired Surfaces and Beyond[J] . Joule . 2018 (11)Google Scholar
- Kaixin Meng, Wenli Fan, Hao Wang. 2018. Dynamic scenario simulation of dropwise condensation on a superhydrophobic surface with droplet jumping[J] . Applied Thermal Engineering . 2018Google Scholar
- Yajing Zhao, Daniel J. Preston, Zhengmao Lu, Lenan Zhang, John Queeney, Evelyn N. Wang. 2018. Effects of millimetric geometric features on dropwise condensation under different vapor conditions[J] . International Journal of Heat and Mass Transfer . 2018Google Scholar
- Patricia B. Weisensee, Yunbo Wang, Qian Hongliang, Daniel Schultz, William P. King, Nenad Miljkovic. 2017. Condensate droplet size distribution on lubricant-infused surfaces[J] . International Journal of Heat and Mass Transfer . 2017Google Scholar
- Rongfu Wen, Qian Li, Jiafeng Wu, Gensheng Wu, Wei Wang, Yunfei Chen, Xuehu Ma, Dongliang Zhao, Ronggui Yang. 2017. Hydrophobic copper nanowires for enhancing condensation heat transfer[J] . Nano Energy . 2017Google Scholar
- H.W. Hu, G.H. Tang, D. Niu. 2016. Experimental investigation of convective condensation heat transfer on tube bundles with different surface wettability at large amount of noncondensable gas[J] . Applied Thermal Engineering . 2016Google Scholar
- Jiqiang Su, Zhongning Sun, Guangming Fan, Ming Ding 2013 Experimental study of theeffect of non-condensable gases on steam condensation over a vertical tube external surface[J]. Nuclear Engineering and Design, 262(9), 2013, 201-208Google ScholarCross Ref
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