Pipe Heater Equation(s)
Pipe Heater Equation(s)
(OP)
It has been a while since I have dealt with heat transfer, but I have the following issue. I need to heat up water going to some equipment that needs a min temp. The supply temperature is somewhat variable and with the onset of cold weather, we are going below the temperature we need.
One option thrown out is to route our supply pipe next to a duct of hot flue gas and recover the heat from that. The design would be to route the pipe close to the duct and then insulate the pipe and duct together. Essentially the water pipe would have all kinds of heat available since it is a large duct.
Basically, can someone point me in the right direction for calculating this. Would this just be a straight conduction problem since the hot service would be a constant temperature?
One option thrown out is to route our supply pipe next to a duct of hot flue gas and recover the heat from that. The design would be to route the pipe close to the duct and then insulate the pipe and duct together. Essentially the water pipe would have all kinds of heat available since it is a large duct.
Basically, can someone point me in the right direction for calculating this. Would this just be a straight conduction problem since the hot service would be a constant temperature?





RE: Pipe Heater Equation(s)
Many of the things in flue gas are the components of acids. When flue gas condenses, you make acid. This acid will corrode your duct and your pipe.
Flue gas flow is typically buoyancy driven. If you take enough heat out of a flue gas stream you can stop the flow.
RE: Pipe Heater Equation(s)
RE: Pipe Heater Equation(s)