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1. Refrigerant 134a as saturated vapor at 210°C enters a compressor operating at steady state with a mass flow rate of 0.3 kg/s. At the compressor exit the pressure of the refrigerant is 5 bar. Stray heat transfer and the effects of motion and gravity can be ignored. If the rate of exergy destruction within the compressor must be kept less than 2.4 kW, determine the allowed ranges for (a) the power required by the compressor, in kW, and (b) the exergetic compressor efficiency. Let T0 5 298 K, p0 5 1 bar.
2. For the turbine-compressor arrangement of Problem 6.164, determine the exergetic efficiency for (a) the turbine, (b) the compressor, (c) an overall control volume enclosing the turbine and compressor. Let T0 5 300 K.
a 3 m x 3 m x 2.4 m room losses heat through the walls at a rate of 520 w. determine the final temperature of the room
For each configuration shown in table 1, determine the angular displacements, angular velocities and angular accelerations of links 3 and 4 graphically and analytically . Use the Excel sheet discussed in the lecture to help you do the analytical s..
determine the force in member of the loaded truss. assume that the four external reactions at and are equal in
two solid cylinders rods AB and BC are welded together at B and loaded. determine the magnitude of the force P for which the tensile stress in rod AB is twice the magnitude of the compressive stress in rod BC?
the arrhenius equation was originally developed for comparing rates of chemical reactions. compare the rates of a
refrigerant 134a at 10 bars 38oc flows at 10.0 kgs through a heat exchanger leaving at 9.0 bars and 80oc. it exchanges
a reheat regenerative rankine cycle. steam enters the turbine at 8mpa and 500 c at a rate of 15 kgs and is condensed to
Demonstrate application of advanced kinetic and kinematic concepts to various mechanisms both from a practical and theoretical context Recognise, Develop and Solve numerical problems related to kinetic and kinematic based mechanisms.
what was its velocity during this time? (Hint: Take the origin to be the location of the radar.)
calculate the gibbs free energy change of a rubber band stretched to 5 times its original length with concurrent
a steam turbine has an inlet pressure of 1200 kpa and temperature of 400 degc. the steam exits the turbine at a
the acceleration of a particle is given by a -ks2 where a is in meters per second squared k is a constant and s is in
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