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Week 10 Lecture 02 IG

The document discusses the fundamentals and design analysis of regenerative heat exchangers, specifically focusing on fixed bed analysis. It includes energy balance equations for both fluid and solid components, governing equations, and boundary conditions. The content is supported by references to established literature in cryogenic heat transfer.

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Sreeram Gottumukkala
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15 views9 pages

Week 10 Lecture 02 IG

The document discusses the fundamentals and design analysis of regenerative heat exchangers, specifically focusing on fixed bed analysis. It includes energy balance equations for both fluid and solid components, governing equations, and boundary conditions. The content is supported by references to established literature in cryogenic heat transfer.

Uploaded by

Sreeram Gottumukkala
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
Available Formats
Download as PDF, TXT or read online on Scribd
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Heat Exchangers: Fundamentals and Design Analysis

Regenerator (Fixed Bed) Analysis

Indranil Ghosh
Cryogenic Engineering Centre
IIT Kharagpur

1
Practical Example: Regenerative Cooler

Indranil Ghosh
Cryogenic Engineering Centre 2
Energy Balance: Fluid

Hot Stream Cold Stream

x=0 x x+dx x=L

x x+dx

Barron R.F. & Nellis G. F. 2015 Cryogenic Heat Transfer 2nd Ed.

Indranil Ghosh
Cryogenic Engineering Centre 3
Energy Balance: Fluid

Barron R.F. & Nellis G. F. 2015 Cryogenic Heat Transfer 2nd Ed.

Indranil Ghosh
Cryogenic Engineering Centre 4
Energy Balance: Solid

Barron R.F. & Nellis G. F. 2015 Cryogenic Heat Transfer 2nd Ed.

Indranil Ghosh
Cryogenic Engineering Centre 5
Governing Equations
For Fluid:

For Solid:

Ackermann R.A. 1997 Cryogenic Regenerative Heat Exchangers Barron R.F. & Nellis G. F. 2015 Cryogenic Heat Transfer 2nd Ed.

Indranil Ghosh
Cryogenic Engineering Centre 6
Boundary/ Initial Conditions
Fluid Entry Conditions:

Initial Steady State Conditions:

Ackermann R.A. 1997 Cryogenic Regenerative Heat Exchangers

Indranil Ghosh
Cryogenic Engineering Centre 7
Dimensionless Parameters

Ackermann R.A. 1997 Cryogenic Regenerative Heat Exchangers


Barron R.F. & Nellis G. F. 2015 Cryogenic Heat Transfer 2nd Ed.

Indranil Ghosh
Cryogenic Engineering Centre 8
Faculty Name
Department Name 9

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