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Consider a spark ignition combustion engine with two possible configurartion for turbocharging. Configuration A is conventional turbocharging. Configuration B is a new propsed configuration using a vapor Rankine power cycle. Assuming a typical engine exhust temperature of 650 C, and assuming a typical exhaust mass flow rate and exhaust pressure for an SUV-six-cylinder engine,propse three different vapor cycles for Configuration B using different vapors. Compare the performance of each vapor cycle against the conventional Configuration in terms of gain in engine intake pressure ratio. For pumps, turbines and compressor use 85% isentropic efficiency, for heat exchangers use an effectiveness of 0.8 and assume 5% pressure lose. All specific heats must be treated as varying with temperature
a 10 gram mass is attached to the end of a 2 meter string which is perfectly flexible infinitely strong and weightless.
Calculate the actual power transmitted to the second pulley and calculate the power which can be transmitted if the maximum tension in the belt is limited to half of the ultimate strength of the belt.
Beryllium has an HCP unit cell for which the ratio of the lattice parameters c/a is 1.568. If the radius of the Be atom is 0.1143 nm, (a) determine the unit cell volume, and (b) calculate the theoretical density of Be.
A hemispherical dome is filled with water. The dome arrangement weighs 28kN and is fastened to the floor by bolts equally spaced
the drag characteristics of an airplane are to be determined by model tests in a wind tunnel operated at an absolute
air is made up of nitrogen oxygen carbon dioxide argon water vapor and some other stuff in really small amounts. list
sometime when riding an elevator or driving up or down a hilly road a persons ears pop as the pressure difference
Determine the reactions of simply supported beam to both a concentrated and uniform load. A beam with a span of 21 ft is simply supported at the left-hand end and fixed at the right-hand end.
a fossil-fuel steam power plant operates at about 50 of carnot thermal efficiency. it has been suggested that the air
a strain gauge that has a nominal resistance of 350 ohms and a gauge factor of 1.8 is mounted in an equal-arm bridge
the decision at hand is replacing the high grade muffler system with one made with low grade cheaper materials. the
in each cycle of its operation a refrigerator removes 17j of heat from the inside of the refrigerator and releases 40j
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