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In a reheat rankine cycle, steam enters the turbine at 4 MPa and 400 C. After expanding to 400 kPa, the steam is reheated again to 400 C, and expands in the low pressure turbine to 10 kPa. If the efficiency of the turbine and the pump is 100% and there is no friction loss, please determine the work output, isentropic efficiency of the cycle, back work ration, and draw and label the T-s diagram.
an air-hockey puck has a mass of 0.01 kg and a diameter of 90 mm. when it is placed on the air table an air film of
in state and national forests it is common to store water in large water towers for reserve in the case of forest
air in pistoncylinder at 200 kpa 600k is expanded in a constant-pressurenbspprocess to twice the initial volume state
determine the breakeven resale price 10 years from now of an apartment house that can be bought today for 449000. its
a sample of wet silty clay soil has a mass of 126 kg. the following data were obtained from laboratory tests on the
for incompressible liquids flow work could usually be neglected in the steady-flow energy equation. in the trans-alaska
calculate the percentage volume change that would occur if a material were to be transformed from fcc to bcc. assume
a piston-cylinder assembly contains carbon monoxide modeled as an ideal gas with constant specific heat ratio k 1.4.
A 1.2Âm3 rigid tank contains nitrogen gas at 200 kPa and 350 K. Now heat is transferred to the nitrogen in the tank and the pressure of nitrogen rises to 900 kPa. The work done during this process is
1. Water vapour at 90kPa and 150°C enters a subsonic diffuser with a velocity of 150m/s and leaves the diffuser at 190kPa with a velocity of 55m/s and during the process 1.5 kJ/kg of heat is lost to surroundings. Determine (i) The final temperature (..
a heat pump with refrigerant 134a is used maintain a house at 25 degc by absorbing heat from a geothermal water source
the velocity in a two-dimensional flow field is given by the equation v i2xt - j2yt where the velocity is in ms when x
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