Ken,
You could model the heat exchanger as a liquid filled accumulator if
your software allows. otherwise take a conservative approach of
modellling it as a dead end. i find with unusual elements that
modelling of a number of different nodes to check sensitivity is the
best way. you may find that you dont have a problem.
On one gas rig I worked on the plates deformed and created a pressure
wave in the secondary cooling system that tripped the pumps.
Geoff Stone
- In PipingDesign@yahoogroups.com, "Ken Nisly-Nagele"
<knislynagele@...> wrote:
>
> I'd like to understand what constitutes a "dead end" for a
transient event
> that results in a reflected wave. In reviewing some of the
literature
> (Wylie/Streeter/Suo, Chaudhry, Thorley), it is clear that closed
valves and
> capped pipe would qualify as dead ends. Would an open heat
exchangers
> qualify as such? I am examining a system with a plate and frame
heat
> exchanger. I think that such equipment would produce a reflected
wave,
> though some of the source wave may also be transmitted.
>
> Would members have input on this or suggested additional reading?
>
> Ken Nisly-Nagele, P.E.
> Project Engineer
> Applied Engineering Services, Inc.
> Indianapolis, Indiana, USA
>
>
> [Non-text portions of this message have been removed]
>
Received on Mon Apr 30 20:33:00 2007