air static dP in the side frame of HE
air static dP in the side frame of HE
(OP)
Hi,
I am working on air-cooled Heat Exchanger which has side plate with slots. When I use blower or sucker fan I would like to know how to calculate the static dP or the air flow that leakes through these slots.
Thanks ! !
KB
I am working on air-cooled Heat Exchanger which has side plate with slots. When I use blower or sucker fan I would like to know how to calculate the static dP or the air flow that leakes through these slots.
Thanks ! !
KB





RE: air static dP in the side frame of HE
The static pressure through the slots you describe will be the same as the differential between that portion of the tube bundle and the ambient pressure.
The question is: Why would you want to have slots in the side channels in the first place?
The second question is: How much air is leaking into (induced draft) or out of (forced draft) the tube bundle?
Regards,
Speco (www.stoneprocess.com)
RE: air static dP in the side frame of HE
How much air leaking was the one I was trying to find. I think it may not be too much. But the air static dP in those slots may be significantly smaller than the core. So, cfm of air through slots will be larger than expected.
Atlast, I used delta P = C (V/1097)^2*rho to find out delta P in inwg., where C is a loss coefficient & V vel. in ft/min.
Thanks Speco for your reply