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Steam enters the turbine of a Rankine cycle at 16 MPa, 5608C. The condenser pressure is 8 kPa. The turbine and pump each have isentropic efficiencies of 85%, and the mass flow rate of steam entering the turbine is 120 kg/s. Determine
(a) the net power developed, in kW.
(b) the rate of heat transfer to the steam passing through the boiler, in kW.
The isentropic pump efficiency is 82%. Cooling water enters the condenser at 188C and exits at 368C with no significant change in pressure. Determine
(b) the thermal efficiency.
(c) the mass flow rate of cooling water, in kg/s.
An air standard dual cycle operates with a compression ratio of 15. At the beginning of the compression the conditions are 17°C, 0.95 bar, and 3.8L. The amount of heat added is 6.3 kJ, of which one-third is added at constant volume and the remainder ..
Consider the electrical heater of Problem 7.49. If the blower were to malfunction, terminating airflow while the heater continued to operate at 1000 W/m, what tem- perature would the heater assume?
a gas is contained in a vertical cylinder fitted with a piston. atmospheric pressure outside is 1 bar and the piston
the governing equation for a simple mass-spring system exemplified in class ism? kx 0if m 2.0 kg determine the
Consider a Carnot heat pump cycle executed in a steady-flow system in the saturated liquid-vapor mixture region of R-134a. The R-134a is flowing at a rate of 0.264 kg/s. It is known that the maximum absolute temperature in the cycle is 1.25 times the..
A viscous fluid flows under its own weight between two very wide, stationary, flat plates inclined at an angle theta to the horizontal. Develop an expression for the velocity profile of the fluid assuming fully developed steady, laminar flow
Using the transport theorem approach, derive the conservation of linear momentum equations. State all assumptions. Why the transport theorem is required in the context of aircraft dynamics?
a pump accepts liquid water at 60 acircdegf and 14 psia and compresses it to a pressure of 100 psia. the pump has a
steam expands isentropically from 2 mpa and 500 k to a final state in which the quality is 0.90. determine the final
a raindrop of mass 3.36 10-5 kg falls vertically at constant speed under the influence of gravity and air resistance.
Air in a piston cylinder assembly undergoes a Carnot power cycle. The isothermal expansion and compression processes occur at 1400 Kelvin and 350 Kelvin, respectively. The pressures at the beginning and end of the isothermal compression are 100 kPa a..
calculate the radius of a vanadium atom given that v has a bcc crystal structure a density of 5.96gcm3 and an atomic
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