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It is desired to double the efficiency of a carrot heat engine from 30% by raising its temperatureof heat addition, while keeping the temperature of heat rejection constant. What percent increase in high temperature is required?
a rankine cycle steam plant operates between the pressures of 15 mpa and 6 kpa. steam exiting the boiler is 550 degrees
a paperclip is made of wire 1.25mm in diameter. if the original material from which the wire is made nbspwas 15mm in
Use thin airfoil theory to show that the pressure coefficient across the length of the ellipse in the stream-wise direction is constant when it is assumed T
a heat engine in each cycle absorbs energy from a reservoir as heat and does an equivalent amount of work with no other
determine the location Yc of the centroid C of the beam cross sectional area . then compute the moment of inertia of the area about the x axis.
A piston -cylinder device contains 0.06 m3 of saturated water vapor at 350 KPa pressure. Determine the temperature and the mass of the vapor inside the cylinder.
Solve this problem with a linear programming model. Describe the optimum mix of raw materials and production levels for the products. How much profit does the business make?
liquid water is cooled at a constant pressure of 200 kpa in a piston-cylinder device from a temperature of 110 degc to
a particle of mass m is at rest at the origin of a coordinate system.nbsp at t 0 a force of the form f bt2e-lambdat
a two-cylinder 250 cm3 displacement motorcycle engine that operates on an ideal otto cycle at 4500 rpm. the compression
At a section in a passage, the pressure is 150 kPa (abs), the temperature is 10 deg C, and the speed is 120 m/s. For isentropic flow of air, determine the Mach number at the point where the pressure is 50 kPa (abs). Sketch the passage shape.
a composite wall made up of two materials. the temperatures on the left and right faces are maintained at constant
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