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A Brayton cycle uses argon as the working substance. At the beginning of compression, the temperature is 335 K and the pressure is 480 kPa. The compression process is adiabatic with discharge conditions of 645 K and 1930 kPa. The argon is heated and enters the turbine at 1390 K and 1930 kPa and expands adiabatically to 890 K and 490 kPa. Determine a) the compressor efficency; b) the turbine efficiency; c) the thermal efficiency.
drag measurements were taken for a sphere with a diameter of 5 cm moving at 4ms in water at 20 degrees celsius. the
a devise take 5 kgs of water at a pressure of 300 kpa and a temp of 180 degrees c. the water exists the devise at the
develop a mathematical model and use it to determine how fast you would have to ride your bike to make it from the roof
a piston cylinder assembly containing h2o initially has a temperature of 130degc and a specific internal energy of 700
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consider an ideal vapor-compression refrigeration cycle. the refrigerator employs refrigerant 134a as the working fluid
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show how did you do the maintenance during your workshop machines were sent to your workshop from a big
A load of lumber of weight W = 20 kN is being raised by a mobile crane. Knowing the tension is 20 kN in all portions of the cable AEF and that the weight of the boom ABC is 3 kN, determine (a) the tension in rod CD (b) the reaction at pin B.
consider an adiabatic turbine with an isentropic efficiency of 85. the inlet pressure and temperature are 3.50 mpa and
determine head loss and the power required to overcome it given efficiency 73 power of the pump 12hp height 35ft water
consider a homogenous spherical radioactive material of radius ro 0.075 m that is generating heat at a constant rate of
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