Tek-Tips is the largest IT community on the Internet today!
Members share and learn making Tek-Tips Forums the best source of peer-reviewed technical information on the Internet!
-
Congratulations MintJulep on being selected by the Eng-Tips community for having the most helpful posts in the forums last week. Way to Go!
Buried sewer line in the berm+heat loss 1
- Thread starter pkmac
- Start date
-
1
- #2
Hi pkmac
in order to calculate heat loss from the sewer, you need to know the temperature of the surroundings. This is often taken as the local groundwater/air temperature. The convection heat loss will be considerably less than the free convection loss because the gravel locks up the water/air on the outside of the pipe.
In many cases, the result is insignificant when the sewer flow rate, inherent pipe insulation properties etc are taken into account.
However in certain circumstances such as CI sewers run in permafrost conditions, the result can be significant.
Perhaps if you described in more detail what it is that you are trying to achieve, then you may get a more useful reply.
Cheers
Steve
in order to calculate heat loss from the sewer, you need to know the temperature of the surroundings. This is often taken as the local groundwater/air temperature. The convection heat loss will be considerably less than the free convection loss because the gravel locks up the water/air on the outside of the pipe.
In many cases, the result is insignificant when the sewer flow rate, inherent pipe insulation properties etc are taken into account.
However in certain circumstances such as CI sewers run in permafrost conditions, the result can be significant.
Perhaps if you described in more detail what it is that you are trying to achieve, then you may get a more useful reply.
Cheers
Steve
Telephone these guys …
Maybe
Books?
Buried Pipe Design, 2nd Edition
by A. Moser (Author)
Pipelines & permafrost: Science in a cold climate @
Cold Regions Engineering: Proceedings of the Fourth International Conference
by William L. Ryan (Author)
US List Price: USD $72.00
Book list here
Maybe
Books?
Buried Pipe Design, 2nd Edition
by A. Moser (Author)
Pipelines & permafrost: Science in a cold climate @
Cold Regions Engineering: Proceedings of the Fourth International Conference
by William L. Ryan (Author)
US List Price: USD $72.00
Book list here
- Status
Similar threads
- Question
- Locked
- Question
- Question
