A 12 shell-and-tube heat exchanger has the following dimensions: Tube length: 20 ft Tube diameter: 1-in, BWG

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A 1–2 shell-and-tube heat exchanger has the following dimensions:

Tube length: 20 ft

Tube diameter: 1-in, BWG 14 carbon steel (kcs = 45 W/m/K)

Number of tubes in shell: 608

Shell diameter: 35 in

Tube arrangement: Triangular pitch, center-to-center = 1.25 in

Number of baffles: 19

Baffle spacing: 1 ft

Baffle: Horizontal baffle with baffle cut = 25%

The fluids in the shell and tube sides of the exchanger have the following properties:Shell Side Tube Side 120 30 120 180 4.2 Specific heat capacity, c, (kJ/kg/K)2.0 Cp Thermal conductivity, k

It may be assumed that neither fluid changes phase, and the viscosity correction factor at the wall may be ignored for both fluids. Determine the following:

The inside heat transfer coefficient

The shell-side heat transfer coefficient

The overall heat transfer coefficient (assuming that fouling may be ignored)

The exit temperatures of both fluids

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Related Book For  book-img-for-question

Analysis Synthesis And Design Of Chemical Processes

ISBN: 9780134177403

5th Edition

Authors: Richard Turton, Joseph Shaeiwitz, Debangsu Bhattacharyya, Wallace Whiting

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