The phenomenon of steam condensation occurring on one surface in a rectangular horizontal channel was experimentally studied. The experiment was conducted using a visualization method with a steam quality of 0.1–0.9 and mass flux of 20–50 kg/m2 s. Four flow patterns (annular, wave, slug, and plug) were observed, and the effects of quality and mass flux on the condensing heat transfer were analyzed. The mass flux and steam quality primarily affect the condensing heat transfer coefficient in the shear-dominated flow regime. The condensing heat transfer coefficients are nearly constant only in a certain range of steam quality. This result is disparate from what has been reported in previous literatures. It was also observed that the condensing heat transfer coefficient rises with an increase in the quality. Two flow regime maps were employed to predict the flow regimes observed in this study. The result reveals that the Tandon flow regime map agrees quite well with the experimental results.
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Visualization Study of Steam Condensation in Rectangular Channel of Multichannel Cylinder Dryer
Yan Yan,
Yan Yan
College of Mechanical and Electrical Engineering,
Shaanxi University of Science and Technology,
Xi'an, Shaanxi 710021, China
e-mail: yy8923507@163.com
Shaanxi University of Science and Technology,
Xi'an, Shaanxi 710021, China
e-mail: yy8923507@163.com
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Dong Jixian,
Dong Jixian
College of Mechanical and Electrical Engineering,
Shaanxi University of Science and Technology,
Xi'an, Shaanxi 710021, China
e-mail: 175235610@qq.com
Shaanxi University of Science and Technology,
Xi'an, Shaanxi 710021, China
e-mail: 175235610@qq.com
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Tang Wei,
Tang Wei
College of Mechanical and Electrical Engineering,
Shaanxi University of Science and Technology,
Xi'an, Shaanxi 710021, China
e-mail: 1725125274@qq.com
Shaanxi University of Science and Technology,
Xi'an, Shaanxi 710021, China
e-mail: 1725125274@qq.com
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Feng Shiyu
Feng Shiyu
College of Aerospace Engineering,
Nanjing University of Aeronautics and Astronautics,
Nanjing, Jiangsu 210016, China
e-mail: shiyuf@nuaa.edu.cn
Nanjing University of Aeronautics and Astronautics,
Nanjing, Jiangsu 210016, China
e-mail: shiyuf@nuaa.edu.cn
Search for other works by this author on:
Yan Yan
College of Mechanical and Electrical Engineering,
Shaanxi University of Science and Technology,
Xi'an, Shaanxi 710021, China
e-mail: yy8923507@163.com
Shaanxi University of Science and Technology,
Xi'an, Shaanxi 710021, China
e-mail: yy8923507@163.com
Dong Jixian
College of Mechanical and Electrical Engineering,
Shaanxi University of Science and Technology,
Xi'an, Shaanxi 710021, China
e-mail: 175235610@qq.com
Shaanxi University of Science and Technology,
Xi'an, Shaanxi 710021, China
e-mail: 175235610@qq.com
Tang Wei
College of Mechanical and Electrical Engineering,
Shaanxi University of Science and Technology,
Xi'an, Shaanxi 710021, China
e-mail: 1725125274@qq.com
Shaanxi University of Science and Technology,
Xi'an, Shaanxi 710021, China
e-mail: 1725125274@qq.com
Feng Shiyu
College of Aerospace Engineering,
Nanjing University of Aeronautics and Astronautics,
Nanjing, Jiangsu 210016, China
e-mail: shiyuf@nuaa.edu.cn
Nanjing University of Aeronautics and Astronautics,
Nanjing, Jiangsu 210016, China
e-mail: shiyuf@nuaa.edu.cn
1Corresponding author.
Presented at the 2016 ASME 5th Micro/Nanoscale Heat and Mass Transfer International Conference. Paper No. MNHMT2016-6693.
Contributed by the Heat Transfer Division of ASME for publication in the JOURNAL OF HEAT TRANSFER. Manuscript received June 19, 2016; final manuscript received December 19, 2016; published online February 14, 2017. Assoc. Editor: Zhuomin Zhang.
J. Heat Transfer. May 2017, 139(5): 054503 (5 pages)
Published Online: February 14, 2017
Article history
Received:
June 19, 2016
Revised:
December 19, 2016
Citation
Yan, Y., Jixian, D., Wei, T., and Shiyu, F. (February 14, 2017). "Visualization Study of Steam Condensation in Rectangular Channel of Multichannel Cylinder Dryer." ASME. J. Heat Transfer. May 2017; 139(5): 054503. https://doi.org/10.1115/1.4035590
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