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10 kilogrms of steam is inside a piston-cylinder. The steam goes through an iso-thermal expansion from 500 kPa and 200 degrees Celsius to 300kPa. During the expansion, 90kJ of heat is transferred to the steam. A propelling wheel transfers 20.5 kJ energy to the stream by work. KE and PE are negligible. Find the transfer of energy through work from the steam to the piston during the process in kJ.
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a distillation column is purchased for 300000. the firm finance 40 of the investment with its own resources and the
If a rod of 1025 steel 0.5 m (19.7 in) long is heated from 20 to 80 deg C (68 to 176 deg F) while its ends are maintained rigid, determine the type and magnitude of stress that develops. Assume that at 20 deg C the rod is stress free.
a friction less piston-cylinder device initially contains 50 l of saturated liquid refrigerant-134a. the piston is free
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the motion of a particle is defined by the equations x10t-5sint and y10-5cost where x and y are expressed in feet and t
a truck travels on a level roadway. after traveling initially at 65 mph the brakes are applied so all tires are on the
feedwater in a steam power plant is to be heated in an ideal open feedwater heater that operates at a pressure of 0.5
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water vapor at 800 lbfin.2 1000 degrees f enters a turbine operating at steady state and expands to 2 lbfin.2 the mass
an internal crack has been detected by means of x-rays in the shell of a large cylindrical pressure vessel. the
jon has decided to install a wind turbine at the top of the ridge. assume the wind velocity is hitting the turbine at a
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