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Water behind a dam enters an intake pipe at a pressure of 1.05 bar and velocity of 1 m/s, flow through a hydraulic turbine-generator, and exits at a point 100 m below the intake at 1 bar, 15 degrees C, 10 m/s. the diameter of the exit pipe is 1.2 m and the local acceleration of gravity is 9.8 m/s^2. Evaluating the electricity generated at 8 cents per kWh, determine the value of the power produced, in $/day, for operation at steady state and in the absence of internal irreversibilities.
a rigid tank a of volume 0.6 m3 contains 3 kg water at 120 degrees celsius and the rigid tank b is 0.4 m3 with water at
in water at a depth of 7 m the absolute pressure is read to be 164 kpa. determine a the local atmospheric pressure and
a double effect evaporator is to be employed in concentrating 15 solution of naoh at 700f to 40. the condensing
a big fireplace can be approximated as 1.5 m3 of volume. its made of firebrick with properties ? 2600 kgm3 and c 950
a specimen of a 4340 steel alloy having a plane strain fracture toughness of 45 mpa m is exposed to a stress of 1000
at rockland steel we make steel coils that are ultimately used to form many common consumer products. one of our
a uniform beamoflength l flexural rigidity ei and cross-sectional plastic moment mp is built-in at both ends and
air undergoes a polytropic expansion process in a piston-cylinder assembly from 75 psia and 300 f to 15 psia. employing
consider a piston-cylinder arrangement containing 5.057 x 10-4 kg of dry air. for an isothermal expansion process
a steam turbine produces power w 3000 hp from a mass flux m 20000 lbhr. the steam enters at temperature t1 810.78 k
the hot gas supply to a propulsion nozzle is at a pressure of 55kpa and temperature of 800k. the ambient pressure is
a certain metal frame supports a platform and motor. the combined mass of the platform and motor is 600kg. at a motor
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