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Refrigerant 134a is the working fluid in a solar power plant operating on an ideal Rankine cycle. Saturated vapor (x1=1.0) at 60oC enters the turbine, and the condenser operates at a pressure of 6 bar. Calculate the work output per unit time in the turbine if the flow rate is 30 kg/s. Neglect potential and kinetic energy changes. The turbine is insulated.
a robot unloads a finished component from a machine and places it on a gravity conveyor. the conveyor accelerates from
a car tows a 400kg block up a 45 degree incline. the coefficients of static and kinetic friction are 0.6 and 0.4. the
assuming that steam can be treated as an ideal gas what would the specific volume of steam be at 600deg f and 120 psia
three horizontal forces are applied as shown to a vertical cast-iron arm. determine the resultant of the forces and the
in an archery test the acceleration of the arrow decreases linearly with distance s from its initial value of 16000
the collars are pin connected at b and are free to move along rod oa and the curved guide oc having the shape of a
an hydraulic turbine operates under an available head of 85 m at a flow rate of 0.25 m3s. the electrical power output
a 2in-diameter steel propeller shaft of an experimental high-speed boat transmits 2500hp at 2000rpm. bending and axial
a 1 m3 rigid tank contains a two-phase mixture of saturated liquid water and saturated water vapor at atmospheric
a walk-in cooler using a vapor compression refrigeration cycle is configured as shown below. the cycle uses cfc22 or
Describe on your own words the three strengthen mechanism for metals (i.e. grain size reduction, solid solution strengthening and strain hardening). Be sure to explain how dislocations are involved in each of the strengthening techniques.
A 90N force is applied to control rod AB as shown. Knowing the length of the rod is 225mm, determine the moment of the force about point B by resolving the force into components along AB and in direction perpendicular to AB?
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