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Maldistribution in X-Shells

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DK44

Mechanical
Joined
Sep 20, 2017
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196
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IN
What are the guide lines for avoiding Flow Maldistribution on Shell side for X-Type Shells in Shell & Tube Heat Exchangers.
 
Request guidance on the subject.
 
DK44 - this is not an easy answer. A few considerations are:

- height under nozzle for distribution (plenum area)
- length
- nozzle size
- flow velocities at various points - in nozzle, in plenum above bundle, through bundle
- is there adequate pressure drop through bundle ("back pressure") to cause the flow to spread out
- impingement plate of perforated plates to assist with distribution

 
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