Heat Exchanger Design Project

Important Notes:

• This is a group project. Each project will consist of three or four members.
• You should submit a professional report detailing your findings. The report should contain an introduction (max 3 pages), methodology, assumptions, equations, results & discussion, conclusion
• If your calculations include an iterative process; a minimum of one complete iteration should be shown in detail.
• Your solution for the problems described below must follow a logical solution method, be complete, with all work shown
• Incomplete or partial solutions will receive little partial credit.

Sign Pledge:

I have neither given nor received unauthorized aid on this project nor have I discussed the contents of this test with anyone before taking it.

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Objectives
Size heat exchanger using the LMTD method and conduct heat transfer performance calculations using energy balances including identifying controlling resistances for heat exchangers.

Project Description:
In a petrochemical complex, a hydrocarbon stream with a flowrate of 20412 kg/h and 199 °C needs to be cooled to 121 °C using a crude stream available at 68038 kg/h and 38 °C. Process conditions dictate that the maximum permissible pressure drop for both the streams to be 1.03 bar. Due to the presence of salt and Sulphur in the crude, it exhibits significant fouling tendencies and a fouling factor of 0.00053 s.m2.K/J is recommended. As a process engineer working in the plant, you have been tasked to design a shell and tube exchanger for this service.

Fluid property Hydrocarbon Stream Crude
Cp (Btu/lbm. °F) 0.59 0.49
K (Btu/h.ft. °F) 0.079 0.077
µ (lbm/ft.h) 0.97 8.7
Specific gravity 0.785 0.85
Pr 7.24 55.36

Notes:
• List all your assumptions.
• Keep in mind the temperatures of the two streams when determining the properties of the two fluids. List all the fluid properties used in a table.
• Present your findings in a summary table clearly listing all design parameters

Grade Sheet

Report
5
(outstanding)
4 3 2 1
(Poor)
Professional
Preparation
Quality Graphics
Assumptions

Equations

Excel Spreadsheets

Results and Discussion
5
(outstanding)
4 3 2 1
(Poor)
Introduction

Methodology

Presentation of Results

Discussion of Results

Conclusion

Individual Reflection

General Comments: