Energy
exchange (conservation) in a thermal system
Energy added, hA
(ex. pump, compressor)
Energy extracted, hE
(ex. turbine, windmill)
Energy lost, hL
(ex. friction, valve, expansion)
pump
turbine
heat
exchanger
condenser
hE
hA
hL, friction
loss
through pipes
hL
loss through
elbows
hL
loss through
valves
