subsea pipe in pipe insulation - 2
subsea pipe in pipe insulation - 2
(OP)
Thank you so much for the replies I got.
I think I found out the calculation and it is the result I have.
Initial oil temp = 250F
Length of pipeline = 25km
Insulation material = polyurethane (k=0.025)
Surrounding temp (temp sea water) = 39F
I get the final temp at around 125F with 1in thick insulation. Could someone verify this please? It just sounds like too good to be true.
I am new to this industry and I don't have any previous project that I can compare this against.
Thanks!
I think I found out the calculation and it is the result I have.
Initial oil temp = 250F
Length of pipeline = 25km
Insulation material = polyurethane (k=0.025)
Surrounding temp (temp sea water) = 39F
I get the final temp at around 125F with 1in thick insulation. Could someone verify this please? It just sounds like too good to be true.
I am new to this industry and I don't have any previous project that I can compare this against.
Thanks!





RE: subsea pipe in pipe insulation - 2
What's the cP values at 20ºC and 90ºC
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"Pumping systems account for nearly 20% of the world's energy used by electric motors and 25% to 50% of the total electrical energy usage in certain industrial facilities." - DOE statistic (Note: Make that 99.99% for pipeline companies) http://virtualpipeline.spaces.live.com/
RE: subsea pipe in pipe insulation - 2
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"Pumping systems account for nearly 20% of the world's energy used by electric motors and 25% to 50% of the total electrical energy usage in certain industrial facilities." - DOE statistic (Note: Make that 99.99% for pipeline companies) http://virtualpipeline.spaces.live.com/
RE: subsea pipe in pipe insulation - 2
We use an old fashioned stamp/signature and file check copy QA system - it works! I often get "blind" to my litle typos.
Best regards
Morten
RE: subsea pipe in pipe insulation - 2
flow rate is about 2000m3/day with 5" diameter pipe.
Yes it has to go thought internal check but I was just curious.
RE: subsea pipe in pipe insulation - 2
cP values ?
**********************
"Pumping systems account for nearly 20% of the world's energy used by electric motors and 25% to 50% of the total electrical energy usage in certain industrial facilities." - DOE statistic (Note: Make that 99.99% for pipeline companies) http://virtualpipeline.spaces.live.com/
RE: subsea pipe in pipe insulation - 2
not familiat about yout mentioned field .
before you do it .you should confirmation it .