Energy Conservation (Bernoulli’s Equation)

Energy Conservation (cont.)

U = mu, u(internal energy per unit mass),

KE = (1/2)mV2 and PE = mgz

Flow work Wflow= m (p/r)

It is common practice to combine the total energy with flow work or flow work.

Thus:

The difference between energy in and out is due to heat transfer (into or out)

and work done (by or on) the system.