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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?
a specimen of a 4340 steel alloy having a plane strain fracture toughness of 45 mpa m is exposed to a stress of 1000
a brass rod k 133 wmk 150mm long and 10mm in diameter extends horizontally from a casting at 200 c. the rod is in an
A regenerative gas turbine is planned to operate with inlet conditions of 100 kPa and 300 K, a pressure ratio of 6, a turbine inlet temperature of 1600 K, and a net power output of 150 kW. The effectiveness of the regenerator is 90% and the adiabatic..
a cannon-ball of 5 kg acts as a piston in a cylinder of 0.15 m diameter. as the gun-powder is burned a pressure of 7
The extrusion ratio, die geometry, extrusion speed, and billet temperature all affect the extrusion pressure. Explain why.
refrigerant 134a is compressed at steady state from 2.4 bar 0oc to 12 bar 50oc. refrigerant enters the compressor with
A ball with a mass of 0.25 kg is thrown vertically upward with an initial velocity of 10 m/s. What is the velocity of the ball when it reaches the highest point?
determine the air and kerosene flow rates for a 100-mw regenerative gas turbine with 1800k turbine inlet temperature
A rigid tank contains nitrogen gas with an absolute pressure of 113.1 kPa. A vacuum pressure gage connected to the tank reads -14.2 kPa-vacuum. What is the local atmospheric pressure (in kPa)?
the area of a rectangle with a perimeter of 200 cm is modeled by a function a 100l - l2 where l is the length of the
refrigerant 134a at 140f and 125 psia enters a condenser of a chiller at 800 lbh and exits as a saturated liquid at the
a boat is traveling along a circular path having a radius of 20m . determine the magnitude of the boats acceleration if
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