Derive this equation from the basic material and enthalpy balances. Show all your steps in detail.
Qd = Qe (Te – Tf / Tf –Td) |Td / Te |
How do I work this problem? Air Dilution equation.
Qd = dilution airflow rate needed
Qe= exhaust airflow rate to be cooled
Te = temperature of the exhaust air
Td = temperature of the dilution air
Tf = final temperature of the mixed stream
Absolute value signs serve as a reminder that, at this point Td and Te must be expressed as absolute temperatures.