A stream of ethylene gas at 250°C and 3800 kPa expands isentropically in a turbine to 120 kPa. Determine the temperature of the
expanded gas and the work produced if the properties of ethylene are calculated by:
(a) Equations for an ideal gas.
(b) Appropriate generalized correlations.
(a) Equations for an ideal gas.
(b) Appropriate generalized correlations.
1 answer:
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Solution:
Given that :
Volume flow is,
So,
Therefore, the equation of a single straight vessel is given by
......................(i)
So there are 100 similar parallel pipes of the same cross section. Therefore, the equation for the area is
or
Now for parallel pipes
...........(ii)
Solving the equations (i) and (ii),
Therefore,
or
Thus the answer is option A). 10