Introduction to Chemical Engineering Thermodynamics
8th Edition
ISBN: 9781259696527
Author: J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
Publisher: McGraw-Hill Education
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A steam turbine in a small electric power plant is designed to accept 4500 kg / hr of steam at 60 bar and 500oC and exhaust the steam at 10 bar.
(a) Assuming that the turbine is adiabatic and has been very well designed, compute the power generated by the turbine.
(b) In off-peak hours, the power output of the turbine is decreased by adjusting a throttling valve that reduces the turbine inlet steam pressure to 30 bar (see figure) while keeping the flow rate constant. Calculate the power output of the turbine.
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- 5. A steam power plant operates on the cycle below. Complete the table. -2200.0 kJ/kg Ideal Turbine Work Turbine Efficiency Ideal Pump Work Pump Efficiency 0.75 100.0 kJ/kg 0.80 4000.0 kJ/kg 125 kg/s Boiler Heat Transfer Steam Rate Condenser Heat Transfer Cycle Thermal Efficiency Power Rating (kW)arrow_forward[1] Repeat Example 7.10 (pages 288-289) but with the following exceptions: water is discharged at 9,000 kPa, and n=0.8. Calculate the work of the pump and AT using steam tables and equation 7.25arrow_forwardThe trimerization 3A(g) → A3(g.l) is carried out isothermally and without pressure drop in a PFR at 298 K and 2 atm. As the concentration of A3 increases down the reactor and Ag begins to condense. The vapor pressure of A3 at 298 K is 0.5 atm. If an equal molar mixture of A and inert, I, is fed to the reactor at what conversion of A will A3 begin to condense?arrow_forward
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