PROBLEM 3.32
Seven lb of propane in a piston-cylinder assembly, initially at p1 = 200 lbf/in.2 and T1 = 200oF,
undergoes a constant-pressure process to a final state. The work for the process is 88.84 Btu.
At the final state, determine the temperature, in
:PEOBLEH 4.53
_, Air enters a compressor operating at steady state at 1.05
bar, 300 K, with a volumetric ﬂow rate of 12 malmin and
exits at 12 bar, 400 K. Heat transfer occurs at a rate of 2 kW
from the compressor to its surroundings. Assuming the ideal
W0
. .7 v Air enters the diffuser of a ramjet engine (Fig. 9.27c) at
6 lbf/in.z, 420°R, with a velocity of 1600 his and decelerates
essentially to zero velocity. After combustion, the gases
reach a temperature of 2200°R before being discharged
through the
W
The F BD of the object is as shown with an upward applied force of l0 lbf and the force
downward due to gravity where Fgrav = mg and g is given as 32.2 ft/sz. Summing forces
yields the following equation that can be rearranged to solve for acceleration.
9.2! Consider In ur—mndud Diesel cycle. Operating dun n principal states in the cycle It:
given in table below. The enter as numbered :- in Fig 9.5. Determine
(I) the cut-off min.
(b) the heat sddition per unit mus. in lurk;
(c) the net work per unit trus