Basics of Energy balance

Energy balance at steady state is

       Heat input=Heat output

All sources of heat input should be considered for example

• Heat of reaction at 298 K
• Heat of fusion and evaporation
• Sensible heat in reactants

Many a time specific heat capacity is required to calculate sensible heat. Also heat of formation of compound would be required. In the reference section some sources are given to obtain the thermo chemical data.

Similarly all different sources of heat output must also be considered. To mention few:

• Sensible heat in solid products
• Sensible heat in gases exiting the reactor
• Sensible heat in liquid products
• Heat losses

In all heat calculations a convenient   reference  temperature 298K is selected.