Heat Tranfer Equation for Mud Drum Heating Coils
Heat Tranfer Equation for Mud Drum Heating Coils
(OP)
I have a water tubed boiler and I am trying to find out what is the temperature of my boiler water in the mud drum when it is on a cold stand-by operation... I have a carbon steel mud drum heating coil tubing with medium pressure steam of 140-lb at 390 deg F going into the mud drum. The boiler feed water and the main high pressure steam outlet is valved closed. The boiler water eventually settles to a certain temp after the heat transfer of the mud drum heating coil. Is there any kind of equation I can use to find out the resulting temperature of the boiler feed water from the heat transfer of the heating coil? The boiler water is stagnant in cold stand-by operation. Any help would be appreciated!!!





RE: Heat Tranfer Equation for Mud Drum Heating Coils
All the above have a bearing on any potential for generating a formula for calculating heat transfer.
rmw
RE: Heat Tranfer Equation for Mud Drum Heating Coils
RE: Heat Tranfer Equation for Mud Drum Heating Coils
Tunalover
RE: Heat Tranfer Equation for Mud Drum Heating Coils
I think that you have misconceptions about the water and steam circulation of your boiler, so you should get the manufacturer's literature to read more about the medium circulation within your boiler.
RE: Heat Tranfer Equation for Mud Drum Heating Coils
Add to that the conditon that Chicopee notes, namely that a mud drum is a nasty place and any accumulated sludge or scale will further impede good heat transfer, and what you end up with is a heat exchanger with very poor efficiency.
If you could find some heat transfer coefficients for this type of service, then you could solve a Q=UAdT considering all the film and metal coefficients needed for the "U" term. You should know the "A" and should be able to make a reasonable approximation of the dT.
rmw