Zepeng Wang, Guanqiu Li, Jingliang Xu, 等. Analysis of fouling characteristic in enhanced tubes using multiple heat and mass transfer analogies[J]. 中国化学工程学报(英文版), 2015,23(11):1881-1887.
Zepeng Wang, Guanqiu Li, Jingliang Xu, JinjiaWei, Jun Zeng, Decang Lou, Wei Li. Analysis of fouling characteristic in enhanced tubes using multiple heat and mass transfer analogies[J]. Chin.J.Chem.Eng., 2015, 23(11): 1881-1887.
Zepeng Wang, Guanqiu Li, Jingliang Xu, 等. Analysis of fouling characteristic in enhanced tubes using multiple heat and mass transfer analogies[J]. 中国化学工程学报(英文版), 2015,23(11):1881-1887.DOI: 10.1016/j.cjche.2015.07.011.
Zepeng Wang, Guanqiu Li, Jingliang Xu, JinjiaWei, Jun Zeng, Decang Lou, Wei Li. Analysis of fouling characteristic in enhanced tubes using multiple heat and mass transfer analogies[J]. Chin.J.Chem.Eng., 2015, 23(11): 1881-1887.DOI: 10.1016/j.cjche.2015.07.011.
Analysis of fouling characteristic in enhanced tubes using multiple heat and mass transfer analogies
摘要
Abstract
This paper provides a comprehensive analysis on cooling tower fouling data taken from seven 15.54 mm I.D. helically ribbed
copper tubes and a plain tube at Re = 16000. There are two key processes during fouling formation: fouling deposition and fouling removal
which can be determined by mass transfer and fluid friction respectively. The mass transfer coefficient can be calculated through three analogies: Prandtl analogy
Von-Karman analogy
and Chilton-Colburn analogy. Based on our analyses
Von-Karman analogy is the optimized analogy
which can well predict the formation of cooling tower fouling. Series of semi-theoretical fouling correlations as a function of the product of area indexes and efficiency indexes were developed
which can be applicable to different internally ribbed geometries. The correlations can be directly used to assess the fouling potential of enhanced tubes in actual cooling tower water situations.
关键词
Keywords
references
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