Process Integration has been applied in several industrial processes mainly using standard shell and tube heat exchangers (1-1 or 1-2). The flow arrangement in 1-2 multiple shell and tube heat exchangers involves part counter-current flow and part co-current flow. This fact is accounted for in the design by introducing a correction factor into the 1-1 heat exchanger design equation. To avoid some steep regions in the feasible space of heat exchangers design some authors introduce other parameters like or G. Until now it was not possible to have an overall map to give some guidelines of how to choose between the several approaches established in the literature. This paper summarizes the current existing criteria in a general design algorithm to show a path for the calculations of the main design variables of the heat exchanger. Also a new strategy design algorithm is introduced in this paper to allow the best choice between the existing approaches based on the heat exchanger cost minimisation. Several examples illustrate the advantage of using the developed algorithm and the deviations obtained in the heat exchanger cost if a wrong approach was chosen.
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Technical Papers
A Cost-Based Strategy to Design Multiple Shell and Tube Heat Exchangers
Raquel D. Moita,
Raquel D. Moita
Departamento de Engenharia Quı´mica, Instituto Superior Te´cnico, Av. Rovisco Pais, 1049-001 Lisboa, Portugal
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Cristina Fernandes,
Cristina Fernandes
Departamento de Engenharia Quı´mica, Instituto Superior Te´cnico, Av. Rovisco Pais, 1049-001 Lisboa, Portugal
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Henrique A. Matos,
e-mail: henrimatos@ist.utl.pt
Henrique A. Matos
Departamento de Engenharia Quı´mica, Instituto Superior Te´cnico, Av. Rovisco Pais, 1049-001 Lisboa, Portugal
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Clemente P. Nunes
Clemente P. Nunes
Departamento de Engenharia Quı´mica, Instituto Superior Te´cnico, Av. Rovisco Pais, 1049-001 Lisboa, Portugal
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Raquel D. Moita
Departamento de Engenharia Quı´mica, Instituto Superior Te´cnico, Av. Rovisco Pais, 1049-001 Lisboa, Portugal
Cristina Fernandes
Departamento de Engenharia Quı´mica, Instituto Superior Te´cnico, Av. Rovisco Pais, 1049-001 Lisboa, Portugal
Henrique A. Matos
Departamento de Engenharia Quı´mica, Instituto Superior Te´cnico, Av. Rovisco Pais, 1049-001 Lisboa, Portugal
e-mail: henrimatos@ist.utl.pt
Clemente P. Nunes
Departamento de Engenharia Quı´mica, Instituto Superior Te´cnico, Av. Rovisco Pais, 1049-001 Lisboa, Portugal
Contributed by the Heat Transfer Division for publication in the JOURNAL OF HEAT TRANSFER. Manuscript received by the Heat Transfer Division November 13, 2002; revision received September 8, 2003. Associate Editor: M. K. Jensen.
J. Heat Transfer. Feb 2004, 126(1): 119-130 (12 pages)
Published Online: March 10, 2004
Article history
Received:
November 13, 2002
Revised:
September 8, 2003
Online:
March 10, 2004
Citation
Moita , R. D., Fernandes , C., Matos, H. A., and Nunes, C. P. (March 10, 2004). "A Cost-Based Strategy to Design Multiple Shell and Tube Heat Exchangers ." ASME. J. Heat Transfer. February 2004; 126(1): 119–130. https://doi.org/10.1115/1.1643087
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