Dear sshep and Katmar,
Thanks for the reply..
I've referred to API 2000, there is a table 2A which lists the thermal venting requirement for a specific capacity of the tank. Is that the correct table I'm looking at??
My tank volume is 1200 gallon, it means that I can have thermal venting...
Dear All,
I have a vessel operating at atmospheric pressure and the fluid is Ethanol. The operating temperature of this vessel will be about 90 deg C and ethanol boils at 78.4 deg C at atm. pressure. THis tank will be drained out to another tank quickly as soon it is filled up. To minimise the...
Dear All,
Need your help in selection of a Steam Trap..
I got a exchanger which is operated on a temperature control, the condendate load is about 2600 lb/hr The operating pressure is 60 psig and the condensate is drained to atmosphere.
The vendor quoted me a 1.5" flat type trap with a...
Dear 25362,
Thanks for the e-mail.
I was using a Heat transfer coefficient of 5 btu/hr-deg-ft2, but 3.5 is a more conservative value.
The heat area is the cross section of the pipe, it does not take into account the length of the piping.
Once I solve the heat transfer equation it will...
Dear Snorgy,
Can you tell me how this equation works??
Nusset number to be calculated based on the calculated Prantl and Rayliegh number (Both based on air properties. After I get Nu, I can calculate H-T coefficient.
The unit of Q is Btu/hr, I need to calculate heat loss Btu/linear foot...
Dear All,
Need your help..
I've a got situation where I need to condense and cool a vapour stream from 260 deg C to about 200 deg C using natural convection or by leaving it bare. I need to know the amount of uninsulated length needed to do that. The process line is a 1/2" tubing.
Thanks in...
Dear Experts,
I'm trying to calculate the boil-up rate for a MEA stripper.
Need your help as how to proceed with the calculations.
Thanks in advance,
Timewrap.
dcasto,
I'm sizing the overhead coendenser and the reflux drum.
How can I calculate the boil up rate in the MEA stripper?
I know the bottom temperature 121 deg C and the vapor pressure of MEA at that temperature.
Thanks for your help
Timewrap
Thanks dcasto,
I'm considering an internal heater at the bottom to maintain 121 deg C. Let's me be clear what you are suggesting. The column will operate at near atmospheric pressure with a bottom temperature of 121 deg C. I have a overhead condenser to condense the vaporized water & MEA, it...
Maddocks & dcasto,
I will appreciate your comments. Need your help.
My regenerator operating temperature is around 121 deg C and the vapor pressure of MEA at that temperature is very low. The question is, whether I'll still be losing MEA with steam. If I try to recover the MEA by condensing...
Thanks for all the replies.
My regenerator operating temperature is around 121 deg C and the vapor pressure of MEA at that temperature is very low. The question is, whether I'll still be losing MEA with steam.
If I try to recover the MEA by condensing and refluxing back to the column, then...
Dear Experts,
I'm doing a pilot plant study where I have a stripper which uses live steam to strip off acid gas to recover rich MEA solution. The MEA flow-rate is about 0.5 gpm and it contains H2S and C02. The exact composition of the acid gas is unknown at this point.
I'm looking for a...
Dear Experts,
I've got a column with bottom part made from Incoloy 800 H and top section from Chrome Moly.
It is possible to weld these two materials directly, if not, then I might have to go with a full body flange (40") for the transition.
Thanks in advance for your help.
Timewrap.
Hi All,
Here is a little problem on which I need your help.
This is a batch process.
A tank intially start with a temperature of -90 deg C and had to be heated up to -80 deg C in two hours. I'm considering a heat transfer fluid circulating through the vessel jacket at about 35 deg C, the...
