0
TECHNICAL PAPERS: Heat Exchangers

A Cost-Based Strategy to Design Multiple Shell and Tube Heat Exchangers

[+] Author and Article Information
Raquel D. Moita, Cristina Fernandes, Henrique A. Matos, Clemente P. Nunes

Departamento de Engenharia Quı́mica, Instituto Superior Técnico, Av. Rovisco Pais, 1049-001 Lisboa, Portugal

J. Heat Transfer 126(1), 119-130 (Mar 10, 2004) (12 pages) doi:10.1115/1.1643087 History: Received November 13, 2002; Revised September 08, 2003; Online March 10, 2004
Copyright © 2004 by ASME
Your Session has timed out. Please sign back in to continue.

References

Smith, R., 1995, Chemical Process Design, McGraw-Hill, New York, Chap. 7.
Ahmad,  S., Linnhoff,  B., and Smith,  R., 1988, “Design of Multipass Heat Exchangers: An Alternative Approach,” ASME J. Heat Transfer, 110, pp. 304–309.
Shenoy, U. V., 1995, Heat Exchanger Network Synthesis—Process Optimization by Energy and Resources Analysis, Gulf Publishing Company, Houston, pp. 255–264, Chap. 6.
Gulyani,  B. B., 2000, “Estimating Number of Shells in Shell and Tube Heat Exchangers: A New Approach Based on Temperature Cross,” ASME J. Heat Transfer, 122, pp. 566–571.
Wales,  R. E., 1981, “Mean Temperature Difference in Heat Exchangers,” Chem. Eng., 88(4), pp. 77–81.
Santos,  L. C., and Zemp,  R. J., 2000, “Energy and Capital Targets for Constrained Heat Exchanger Networks,” Braz. J. Chem. Eng., 17(4–7), pp. 659–669.
Floudas, C. A., 1995, Nonlinear and Mixed-Integer Optimization—Fundamentals and Applications, Oxford University Press, Oxford, UK, pp. 314–315.

Figures

Grahic Jump Location
(a) 1-1 shell and tube exchanger with pure counter-current flow; (b) 1-2 shell and tube exchanger with partial counter-current and partial co-current flow
Grahic Jump Location
Generic FT(R,P) chart and inlet/outlet temperature situations that can occur when using 1-2 heat exchangers: (1) Temperature approach; (2) Small temperature cross; (3) Large temperature cross
Grahic Jump Location
Different criterions used to define the region of one shell or multiple shell heat exchangers: FT criterion (FT Minimum=0.75),XP criterion (XP=0.9), slope (∂FT/∂P)R approach (XPP) and slope (∂FT/∂Xp)R approach (XPC)
Grahic Jump Location
Heat exchanger area and cost design algorithm (DeAl12)
Grahic Jump Location
Design results for E1, E2, and E3 exchangers according to approaches Ap1 to Ap5. For each criterion, above its line one shell is used and below it multiple shells are required. (▵,○,□)—Infeasible points obtained with N=1; (▴,•,▪)—Design results
Grahic Jump Location
Design results for E4, E5, E6, and E7 exchangers according to the approaches Ap1 to Ap5. For each criterion, above its line one shell is used and below it multiple shells are required.
Grahic Jump Location
Approaches 1 and 2, with XP equal to XP1 and XP2, respectively, which lead to different values of the number of shells and area of the exchanger
Grahic Jump Location
Effect of the area reduction fraction (ΔA/A1) in the cost difference value (ΔC), for different A1,N1,ΔN and cost law constant c illustrative values, with b=7 000
Grahic Jump Location
Variation of the critical area reduction—(ΔA/A1)critical—with the cost law constant c and the number of shells N1, for ΔN=1
Grahic Jump Location
Three situations that can occur due to the use of the different approaches 1 and 2, for ΔN=1 and b=7 000: (1) (ΔA/A1)critical>(ΔA/A1)max; (2) 0<(ΔA/A1)critical<(ΔA/A1)max; (3) (ΔA/A1)critical≤0
Grahic Jump Location
Heat exchanger design situations that can occur with the approaches 1 and 2: (1) P≤PLimit 2; (2) PLimit 2<P≤PLimit 1; (3) P>PLimit 1
Grahic Jump Location
XP variation with R for the constant XP criterions and constant slopes approaches presented in Table 1 of Sec. 4
Grahic Jump Location
Strategy design algorithm (StratDeAl12), which minimizes the heat exchanger cost
Grahic Jump Location
Location in the FT(R,P) chart of each design example (Ex1 to Ex5)
Grahic Jump Location
Inlet/outlet temperature situations corresponding to each design example: (1) Ex1 to (5) Ex5

Tables

Errata

Discussions

Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging and repositioning the boxes below.

Related Journal Articles
Related eBook Content
Topic Collections

Sorry! You do not have access to this content. For assistance or to subscribe, please contact us:

  • TELEPHONE: 1-800-843-2763 (Toll-free in the USA)
  • EMAIL: asmedigitalcollection@asme.org
Sign In