Economical Aspect of Heat Exchanger Cleaning Affected by Fouling

Mades Darul Khairansyah, Totok R. Biyanto

Abstract


Fouling is the accumulation of foulant in a heat exchanger. Fouling increases the pressure drop and energy loss. Losses due to fouling in the distillation unit for crude oil reached US $ 4.2-10 billion per year in the United State. Fouling couldn’t be avoided, but it could be mitigation. One of the mitigation method is periodic cleaning of the heat exchanger. The time interval of a heat exchanger cleaning schedule is 1-36 months. Energy recovery, additional costs due to the performance of the pump and the cleaning cost are used as variables to determine saving. Results from this research showed that the heat exchanger is cleaned at 9 month is optimal cleaning schedule. Heat exchanger has savings about IDR 7.9 billion at 9 month. The amount is derived from the energy recovery about IDR 8.8 billion, reduced by a cleaning cost about IDR 0.2 billion and the advantage due to additional pumping cost about IDR 1.1 billion.

Keywords


Cleaning schedule; fouling; heat exchanger; optimization

Full Text:

PDF

References


Á. Martín and F. a. Mato, “Hint: An educational software for heat exchanger network design with the pinch method,” Educ. Chem. Eng., vol. 3, no. 1, pp. 6–14, 2008.

T. R. Bott, Fouling of Heat Exchanger, 26th ed. Amsterdam: Elsevier Ltd, 1995.

F. Smaïli, V. S. Vassiliadis, and D. I. Wilson, “Mitigation of fouling in refinery heat exchanger networks by optimal management of cleaning,” Energy and Fuels, vol. 15, no. 5, pp. 1038–1056, 2001.

L. Wang, B. Sundén, and R. M. Manglik, Plate Heat Exchangers: Design, applications and performance, vol. 25, no. 3. Southampton, UK: WIT Press, 2007.

D. Lawler, Fouling of Crude Oil in Refinery Heat Exchangers. UK, 1979.

W. L. Van Nostrand, S. H. Leach, and J. L. Haluska, “Economic penalties associated with the fouling of refinery heat transfer equipment,” Fouling heat Transf. Equip., pp. 619–643, 1981.

T. R. Biyanto, Optimal cleaning schedule for crude pre heat train affected by fouling using genetic algorithm. Bandar Seri Iskandar, Perak: Universiti Teknologi Petronas, 2013.

S. Sanaye and B. Niroomand, “Simulation of heat exchanger network (HEN) and planning the optimum cleaning schedule,” Energy Convers. Manag., vol. 48, no. 5, pp. 1450–1461, 2007.

T. R. Biyanto, S. W. Suganda, Y. Susatio, and H. Justiono, “Cleaning Schedule Optimization of Heat Exchanger Networks Using Particle Swarm Optimization,” in Applied Science for Technology Innovation, 2014, no. August, pp. 13–14.




DOI: http://dx.doi.org/10.12962/j23546026.y2015i1.1022

Refbacks

  • There are currently no refbacks.


View my Stat: Click Here

Creative Commons License
This work is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License.