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An ideal Otto cycle with Argon as the working fluid has a compression ratio of 6.8. The minimum and maximum temperatures in the cycle are 450 R and 2,260 R. Assuming constant specifc heats, determine
a) the amount of heat transferred to the argon during the heat-addition process
b) the thermal efficiency
c) the thermal efficiency of a Carnot cycle operating between the same temperature limits.
A new vehicle propulsion scheme calls for the use of liquid nitrogen as "fuel". The details of the power cycle are basically liquid nitrogen is heated in contact with the atmosphere, pressurised and expanded through a turbine) .
design a chain drive for a steam turbine driving a centrifugal pump. the input speed is 2200 rpm and output is around
a midwestern power plant burns 2 x 106 tons of coal annually. the coal contains 2 sulfur by weight. a limestone
for an undamped sdof spring mass system m5kg and k2000 nm. plot the displacement and acceleration of the system using
Converging duct flow is modeled by the steady two-dimensional velocity field. For the case in which Uo = 3.56 ft/s and b = 7.66s^-1, Plot several streamlines from x = 0 to 5 ft and y = -2 to 2 ft. Be sure to show the direction of the streamlines.
An alloy contains 105.0 kg of iron, 0.2 kg of carbon, and 1.0 kg of chromium. Calculate the alloy composition in weight percent. Calculate the alloy composition in atom percent.
Two lead lumps attract each other gravitationally with force F. Now you double the mass of one lump, halve the mass of the other lump, and double the separation between them. What is the magnitude of the new gravitational force between them?
Weekly sales for watermelons over the summer at a local produce stand exhibit a linear trend. The demand for weeks 1 through 10 was 91, 94, 95, 97, 92, 101, 107, 116, 113, and 121. Calculate the forecasts for weeks 2 through 10 using Holt’s double ex..
air at 300 k and 200 kpa is throttled by a valve to pressure of 100 kpa. if the valve is adiabatic and the change in
in usa 53 of total electric power is currently generated by coal-fired power plants. typically generation of 1 kwh of
a coast guard cutter detects an unidentified ship at a distance of 19.6 km in the direction 17.8deg east of north. the
a propeller driveshaft is to transmit 2500 hp at 75 rpm. it is to be made of aisi 1040 wqt 1300 steel. use a design
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