Recent content by joedirt9

ok, might have cleared things out in my head. if the heat exchanger has a pressure drop of X then the flow out will be 20 gpm through the 10LF 1" pipe. So all i really need to know is the pressure that is required to flow 20 gpm of water through the 1" pipe. This seems really low but 1.6 psig...

the water is on the tube side and oil side. Here are the temperature readings i took: T1W=56F, T2W=74, T1Oil=140, T2Oil= 120.

Not sure if i have enough data to tackle this one. I have a 1" pipe with water at 60 psig going into a heat exchanger. The heat exchanger discharges water at a flow rate of 20 gpm. I am unable to access the heat exchanger, but i know its there. How do i determine the pressure at the...

i am working on getting some more info. thanks for sending me in the right direction scotty

well i was able to do that. but i am not sure that really gives a realistic evaluation of the heater. thanks alot though

Lionel, are to elaborate?

Looking to determine the remaining capacity of an Immersion Heater: 480 V 90 kW 1-3 Phase . The readings gave 67 Amps Any ideas on how to determine the remaining capacity of this heater?

Should have stated that I could not find the specs in ASME B31.3

I am not able to find the allowable stress, ksi, at 572 F for this material. Any tips on what i am missing out on. Is this comparable to another material and i am just not aware of it? Thanks

Guess I am stuck on U now.

pipe is going to have 4 inches of insulation. that should have been included. i can solve for how much heat is lost thru the insulation. the btu/hr requred to keep the steam at at the given temp is where i am stuck

this pipe is not unique. there are others that are jacketed that have not clogged question on the film coefficients. not sure which one to use for the steam. still looking into that one

well it is steam traced right now and it is not working need to keep the pipe as hot as possible to keep it from becoming fouled think i am making progress though basicly breaking it into two parts. heat lost thru insulation + {q=UA(dtm)} still working on it but seem to be moving forward...

guess i was looking at it differently. my thinking was to look at this as a heat exchanger with heat coming from the vapor in the jacket to heat the steam. then add in the heat lost through the insulation from the vapor in jacket. what you are saying is to only deal with the heat loss from...

I threw air on there as this pipe needs to be evaluated using different flows, not just steam. This pipe is already insulated and that is not enough. Need to keep the high temp until exiting the pipe