Hi, I want to ask how to find the energy balance PFR manually? I've tried using the formula Q=mass flow×cp× delta T and it still doesn't match the energy stream results in dwsim
Last edit: ditt 2024-06-09
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Hi ditt:
Try summing the Enthalpy of the exiting streams and subtracting the Enthalpy of the entering streams. The difference should equal the Energy stream either positive or negative. Sum the Enthalpy of each component on a mass or mole basis multiplied by the mass or moles as appropriate.
The MCpDelta T method may not be accurate if there are large changes in Cp and/or Delta T.
If you would like to refer to this comment somewhere else in this project, copy and paste the following link:
Hi, I want to ask how to find the energy balance PFR manually? I've tried using the formula Q=mass flow×cp× delta T and it still doesn't match the energy stream results in dwsim
Last edit: ditt 2024-06-09
Hi ditt:
Try summing the Enthalpy of the exiting streams and subtracting the Enthalpy of the entering streams. The difference should equal the Energy stream either positive or negative. Sum the Enthalpy of each component on a mass or mole basis multiplied by the mass or moles as appropriate.
The MCpDelta T method may not be accurate if there are large changes in Cp and/or Delta T.