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A power plant generates steam from coal burning which burns at 3,000oF and produces about 13,000 BTU per pound. The steam is put into a poorly insulated turbine which allows 2,000 BTU per pound of coal to escape to the atmosphere at 90oF. Knowing the cooling water used is at 55oF what is the minimum amount of coal, in tons, needed to be used per hour needed to produce 667 MW?
Steam flows at steady state through a well-insulated pressure-reducing valve. At the inlet, the pressure is 4 MPa, the temperature is 320°C, and the velocity is 60 m/s. The pressure of the steam at the exit is 700 kPa.
A disc 40 cm in diameter and 5 cm thick is to be cast using pure aluminium in an open mould operation. The melting point of aluminium is 660°C, and the pouring temperature will be 800°C.
a large two-stage liquid rocket with mass of 30000 kg is to be launched from a sea-level launch pad. the main engine
compare it with efficiency of an otto cycle operating with the same maximum pressure?
consider a small simple rankine power cycle which produces 600kw power from an electric generator with an efficiency of
consider a gas turbine cycle with two stages of compression and two stages of expansion. the pressure ratio across each
steam at 1.6 mpa and 400 degrees celcius is contained in a rigid box. the system is then cooled to 200 degees celcius.
the gas inside a cylinder is confined by a piston to a volume of 100 liters. an external force on the piston changes
If the unit can perform its function either in State 1 or 2, find the steady-state availability A for the device.
to use the principle of superposition to determine the total deflection in a cylindrical rod due to a static loading.a
a spur pinion d 100 mm has a torque of 225 nm applied to it. for pressure angle of 20 degreea. calculate wt wn and wr
Refrigerant-134a is throttled from saturated liquid state at 7 bar to a pressure of 1.4 bar. Determine the temperature drop during this process and the final specific volume.
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