Shell and tube for low delta T with steam
Shell and tube for low delta T with steam
(OP)
I'm trying to replace an existing shell and tube heat exchanger that was oversized by quite a bit, but want to make sure I'm not missing a better piece of equipment for this application...
Fluid:
Glycol (40%)
EWT - 85 F
LWT - 115 F
GPM - 2000
Steam:
60 psig
I think with the big delta T between the steam and glycol is causing the problems. I've seen the welded plate and frame units with a super small contact area. Is this the right application for this unit.
Fluid:
Glycol (40%)
EWT - 85 F
LWT - 115 F
GPM - 2000
Steam:
60 psig
I think with the big delta T between the steam and glycol is causing the problems. I've seen the welded plate and frame units with a super small contact area. Is this the right application for this unit.





RE: Shell and tube for low delta T with steam
Or can you divide the load between several heat exchangers so you can reduce the supply pressure, and main size, there by keeping the approach a little closer. Just some thoughts to ponder
I'm not a real engineer, but I play one on T.V.
A.J. Gest, York Int.
RE: Shell and tube for low delta T with steam
plate frame exchanges are beneficial in that they are compact and have a relatively smaller plot space when compared to s&t exchangers of same duty.
yorkman's suggestions are worthy of consideration.
good luck!
-pmover
RE: Shell and tube for low delta T with steam
www.niagarablower.com
RE: Shell and tube for low delta T with steam
When you say you think the high differential temperatures are giving you problems, what are they?
RE: Shell and tube for low delta T with steam
If it were me, I would consider two heat exchangers or 1/3-2/3 steam control depending on the ACTUAL minimum and maximum flow rates of the glycol, and you will DEFINATELY need gravity drainage and a couple of massive steam traps....
RE: Shell and tube for low delta T with steam
If it were me, I would consider two heat exchangers or 1/3-2/3 steam control depending on the ACTUAL minimum and maximum flow rates of the glycol, and you will DEFINATELY need gravity drainage and a couple of massive steam traps....