Tracing heat loss coefficient
Tracing heat loss coefficient
(OP)
Hi,
I'm trying to calculate de heat loss coefficient, for a traced line.
It's easy to calculate the heat loss coefficient for a normal pipe with a known insulation thickness, how if we're dealing with a heat tracing case???
In my case i have bituminous products that flow in a pipe and have a tracing pipe whit hot thermal oil in it, and both are insulated together.
I've searched in every book i gave and i saw no reference to this kind of situations.
Can anyone help me?
Thanks!!
I'm trying to calculate de heat loss coefficient, for a traced line.
It's easy to calculate the heat loss coefficient for a normal pipe with a known insulation thickness, how if we're dealing with a heat tracing case???
In my case i have bituminous products that flow in a pipe and have a tracing pipe whit hot thermal oil in it, and both are insulated together.
I've searched in every book i gave and i saw no reference to this kind of situations.
Can anyone help me?
Thanks!!





RE: Tracing heat loss coefficient
I would recommend to consult the Chapter B6 of the "Piping Handbook" Nayyar et al. Mcgraw Hill
RGS
RE: Tracing heat loss coefficient
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RE: Tracing heat loss coefficient
Thanks!!
RE: Tracing heat loss coefficient
The talks mostly about electric tracing. It presents only a table with some heat loss values, but i didn't understand if it was related to electric or steam tracing.
I will consider only the main pipe. Is this a correct approach???
I can't find any specific calculation for this application.
RE: Tracing heat loss coefficient
You might also look at "pipe in pipe" heat exchangers, if you have access to a heat transfer book. The following one is available for free: http://web.mit.edu/lienhard/www/ahtt.html
Patricia Lougheed
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RE: Tracing heat loss coefficient
I've tried earlier that book, but i will give it another try.... maybe i missed something...
Thanks!