Which efficiency does that correspond to
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A nozzle involves no actual work; how should you then interpret the reversible work? Can entropy change in a control volume process that is reversible?
The filling is done quickly, so it is adiabatic. How much mass of R-134a is in the cannister? How much entropy was generated?
Discuss how noncash charges for depreciation, depletion, and amortization can be used to obtain a shortrun view of times interest earned.
Air from a line at 1800 lbf/in.2, 60 F flows into a 20-ft3 rigid tank that initially contained air. What is the net entropy change for the overall process?
A steam turbine inlet is at 200 psia, 800 F. The exit is at 40 psia. What is the highest possible exit temperature? Which efficiency does that correspond to?
The inlet temperature is 1800 R, and it exhausts to the atmosphere. Find the required inlet pressure and the exhaust temperature.
The isentropic efficiency may be assumed to be 90%. What pressure and temperature are required in the line upstream of the nozzle?
Would you expect a telephone company to have a high debt ratio? Discuss.
Find the actual compressor work and its exit temperature and find the actual nozzle exit velocity.
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