Selection of fouling factors is somewhat arbitrary in heat exchanger networks (HENs) synthesis. Fouling factors were reconsidered in this article for heat exchanger networks design. An objective function based on exergoeconomic analysis was introduced to assess optimal less conservative fouling factors. The objective took account of exergy consumption expense and heat exchanger capital cost at the same time. The exergy consumption of heat transfer in HENs was calculated using subsection integral on balanced composite curves. The proposed method was applied to an industrial case. Numerical results indicated that the optimal less conservative fouling factors were 80% of the original values and the heat transfer area of the system saved compared with root design. So it is necessary to reconsider the values of fouling factors for HENs design and that exergoeconomic analysis is useful in determining the optimal less conservative fouling factors.
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Exergy Study of Fouling Factors in Heat Exchanger Networks
Zunlong Jin,
Zunlong Jin
Thermal Energy Engineering Research Center,
e-mail: zljin@zzu.edu.cn
Zhengzhou University
, Zhengzhou 450002, P.R. China
Search for other works by this author on:
Qiwu Dong,
Qiwu Dong
Thermal Energy Engineering Research Center,
Zhengzhou University
, Zhengzhou 450002, P.R. China
Search for other works by this author on:
Minshan Liu
Minshan Liu
Thermal Energy Engineering Research Center,
Zhengzhou University
, Zhengzhou 450002, P.R. China
Search for other works by this author on:
Zunlong Jin
Thermal Energy Engineering Research Center,
Zhengzhou University
, Zhengzhou 450002, P.R. Chinae-mail: zljin@zzu.edu.cn
Qiwu Dong
Thermal Energy Engineering Research Center,
Zhengzhou University
, Zhengzhou 450002, P.R. China
Minshan Liu
Thermal Energy Engineering Research Center,
Zhengzhou University
, Zhengzhou 450002, P.R. ChinaJ. Heat Transfer. Jan 2010, 132(1): 011802 (4 pages)
Published Online: October 30, 2009
Article history
Received:
December 30, 2008
Revised:
May 28, 2009
Published:
October 30, 2009
Citation
Jin, Z., Dong, Q., and Liu, M. (October 30, 2009). "Exergy Study of Fouling Factors in Heat Exchanger Networks." ASME. J. Heat Transfer. January 2010; 132(1): 011802. https://doi.org/10.1115/1.3194766
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