Heat Transport Equipment

1
Heat Transport Equipment

• Team Green
• Yoshiko Katori
• Branson Kester
• Venkatesh Rajan
• Maria Sari
• Michael Mc Allister
• Constance Burris

2
Overview

• Background
• Design of heat exchangers
• Manual Design
• Pro/II Software
• Select the material type
• Create T-Q diagram
• Design the column
• Recommendation

3
Background

• IRI needs to design heat exchangers
• for cyclohexane production plant

4
Design of HX -Manual Design

• Methodology
• Select trial value for U
• Calculate the mean temperature diffrerence
• Find Area - Initial Design
• Find individual coefficients
• Find new U
• Repeat until new U is near old U
• Results

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Rigorous Model Heat Exchanger
Design of HX

• Pressure Drop
• Cold side outlet temperature250oF
• Hot side inlet temperature435oF

• Baffle spacing is 20 of overall shell length
• ¾ in. tubes 20 feet long are used
• Constructed entirely of 304 stainless steel

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Material type for the heat exchangers

• Material type chosen Stainless Steel
• Advantages
• - resistance to hydrogen
• - longer life time
• - higher salvage value
• - resistance to temperature changes

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T-Q diagram, Single Pass
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T-Q diagram, Single Pass
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T-Q diagram, Double Pass
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FCI for Heat Exchangers

• Direct cost 224,000
• Total price for 3 heat exchangers 64,750
• Indirect cost 47,900
• Fixed Capital Investment 312,770

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Rigorous Model Column

• Column operates at atmospheric pressure with
  partial condenser and re-boiler
  
• Feed from bottom of flash drum to middle of
  column
  
• Must yield 99 pure cyclohexane
• Random packing - Super INTALOX saddles

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Recommendations

• Fixed Capital Investment
• 312,765
• E1 and E3 single pass
• E2 double pass
• Construction Material
• 304 Stainless Steel
• Distillation Column
• Intalox Ceramic Saddles
• 42 ft tall, 8 ft diameter

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Questions?

• For more information, please visit
• http//students.ou.edu/B/Constance.M.Burris-1.html