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A geothermal pump is used to pump brine whose density is 1050 kg/m3 at a rate of 0.3 m3/s from a depth of 200 m, For a pump efficiency of 74 percent, determine the required power input to the pump. Disregard frictional losses in the pipes, and assume the geothermal water at 200 m depth to be exposed to the atmosphere.
what is the difference between steady state and non steady state diffusion procces? use mathematical expresions for
a 1030 steel is given an improper quench and temper heat treatment producing a final structure composed of 60
a vehicle of mass m isaccelerated from rest when a constant power p is supplied by its engine showthat a the velocity
ater is the working fluid in a regenerative rankine cycle. the pressure andnbsptemperature at the turbine inlet are
a pneumatic displacement gage is to be used to measure displacement between 0.1 and 0.2 mm. the output of the device is
A cylinder fitted with a frictionless piston contains 2 kg of superheated refrigerant R-134a vapor at 350 kPa, 100oC. The cylinder is now cooled so that the R-134a remains at constant pressure until it reaches a quality of 75%. Calculate the heat tra..
A well-insulated rigid tank contains 1 kg of air at 30°C. A paddle wheel rotates inside the tank and increases the temperature of the air to 60°C. If the environment is at 100 kPa and 25°C, determine the exergy destroyed and the minimum work input fo..
In a sealed piston cylinder device Nitrogen gas executes a CARNOT POWER CYCLE. The source and sink temperatures are 999 K and 333 K. Minimum pressure in the cycle is 20 kPa. The minimum volume is (1/40) of the maximum volume in the cycle. The cycle w..
two particles of equal weight are released from rest on a 35 degree incline when they are 20 m apart. the coefficient
a sheet of plywood 1.39 cm thick is used to make a cabinet door 55.5 cm wide by 69.5 cm tall with hinges mounted on the
a straight fin of uniform cross section is fabricated from a material of thermal conductivity 50 wmk thickness w6mm and
Determine the smallest horizontal force required to lift the 260- crate. The coefficient of static friction at all contacting surfaces is = 0.7. Neglect the mass of the wedge.
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