Engineering, 21.08.2019 05:30 desirekotta20
An ideal otto cycle has a compression ratio of 9. at the beginning of the compression process p =100 kpa and t=27°c. the maximum cycle temperature is 1100°c. find the temperature, pressure and specific volume at states 1,2,3, and 4. find the heat supplied, heat rejected, work done by the system, work done on the system, net work done, and thermal efficiency. calculate the thermal efficiency of a carnot cycle operating between the same temperature limits.
Answers: 3
Engineering, 03.07.2019 14:10
Explain the difference laminar and turbulent flow. explain it with the shear stress and the velocity profiles.
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Engineering, 04.07.2019 18:10
Aflywheel accelerates for 5 seconds at 2 rad/s2 from a speed of 20 rpm. determine the total number of revolutions of the flywheel during the period of its acceleration. a.5.65 b.8.43 c. 723 d.6.86
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Engineering, 04.07.2019 18:10
An air compression refrigeration system is to have an air pressure of 100 psia in the brine tank and an allowable air temperature increase of 60°f for standard vapor compression cycle temperatures of 77 f entering the expansion cylinder and 14 f entering the compression cylinder, calculate the coefficient of performance a. 2.5 b 3.3 c. 4.0 d. 5.0
Answers: 3
Engineering, 04.07.2019 18:20
Steam enters a converging nozzle at 3.0 mpa and 500°c with a at 1.8 mpa. for a nozzle exit area of 32 cm2, determine the exit velocity, mass flow rate, and exit mach number if the nozzle: negligible velocity, and it exits (a) is isentropic (b) has an efficiency of 94 percent
Answers: 2
An ideal otto cycle has a compression ratio of 9. at the beginning of the compression process p =100...
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