I am drawing a blank. I need to raise the temp of sludge from ambient to 132 degrees, through a heat exchanger. how do I calculate my BTU's necessary to do this?
Q = m * Cp * dT UNITS [Btu = lbm * Btu/lbm-°F * °F] In a heat exchanger, you typically deal with flows, so the Q and m terms are Qdot and mdot (heat rate and mass flow rate). There are types of exchangers that can handle sludge, depending upon its composition and viscosity. I personally have no experience with them, however.
You need to know the heat capacity of the sludge.
Why do you want to put sludge through a heat exchanger? Unless the viscosity is low, it will probably thicken inside the tubes and plug the unit.
