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A generator with a surface area of 30 m2 operating at steady state rotates a shaft at 2000 rpm producing a torque of 20,000 N-m and creates a current of 230 amps at 10,000 Volts. If the ambient temperature is 27 0C and the coefficient of heat transfer is 100 W/m2 determine a) the surface temperature of the generator in K and b) rate of entropy production in kW/K.
you are manufacturing a frame for a vehicle out of some aluminum alloy 6061-t451 tubing. the frame is to be welded
A cylindrical steam boiler shell is riveted in construction; it is made from plates 18mm thick, and has a diameter of 1.8m, Calculate the circumferential and longitudinal stresses in the plates when the internal pressure is 800 kN/m2 if the ultimate ..
A piston cylinder device contains 8.00 kg of water at an initial pressure of 200 kPa. Initially the piston is at rest on a set of stops and the initial volume is 2.00m3. Heat is transferred to the water until the pressure increases to 1000 kPa when t..
an equimolar mixture of n2 and o2 is heated to 2100 k at 1 atm which generates no. calculate the molar values of the
qualitatively plot the following processes on p-v t-v and p-t diagrams. use an arrow sign pointing to the process
the temperature profile at a location in water flowing over a flat surface is -800y experimentally measure to be tdegc
A water brake is used to measure the power output of an engine, ?W . The water mass flow rate through the brake is m? = 7 kg s?1. Water temperatures at the brake inlet and outlet are T1 = 290K and T2 = 305K, respectively. The heat loss from the engin..
Determine the flow rate of steam from the boiler in lb/h
lead shot is formed by dropping molten lead through the center of a high tower. the frictional resistance of the air as
a retarding force is applied to a body moving in a straight line so that during an interval of its motion its speed u
a printing pigment solution having a viscosity of 0.05 n s m2 and the yield stress of 0.6 nm2 flows in a three meter
suppose that the mass in a mass-spring-dashpot system with m10 c9 and k2 is set in motion with x00 and x05 a find the
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