Steam enters an insulated nozzle at 60 psia and 350°F. The steam exits the nozzle at 40 psia and 330°F, at a velocity of 425 ft/s. Determine the inlet velocity of the steam.
Given: P1 = 60 psia; T1 = 350°F; V2 = 425 ft/s; P2 = 40 psia; T2 = 330°F
Insulated, so assume, Q?=0
What will be an ideal response?
For a nozzle, assume steady –state, steady-flow single-inlet, single-outlet flow, and assume that W?=?pe=0
These assumptions result in the first law being (State 1 is inlet, State 2 is outlet)
Finding steam properties: h1 = 1208.35 Btu/lbm; h2 = 1202.06 Btu/lbm
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