Engineering, 12.05.2021 02:10 donttrip10
Air enters the compressor of an air-standard Brayton cycle with a volumetric flow rate of 60 m3/s at 100 bar, 320 K. The compressor pressure ratio is 20, and the maximum cycle temperature is 2200 K. For the compressor, the isentropic efficiency is 92% and for the turbine, the isentropic efficiency is 95%. Determine (a). the net power developed, in MW, (b). the back work ratio, and (c). the thermal efficiency of the cycle.
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What difference(s) did you notice using a pneumatic circuit over hydraulic circuit.explain why the pneumatic piston stumbles when it hits an obstacle.
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Engineering, 04.07.2019 18:10
Afull journal bearing has a journal diameter of 27 mm, with a unilateral tolerance of -0.028 mm. the bushing bore has a diameter of 27.028 mm and a unilateral tolerance of 0.04 mm. the l/d ratio is 0.5. the load is 1.3 kn and the journal runs at 1200 rev/min. if the average viscosity is 50 mpa-s, find the minimum film thickness, the power loss, and the side flow for the minimum clearance assembly.
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Engineering, 04.07.2019 18:10
Carbon dioxide gas expands isotherm a turbine from 1 mpa, 500 k at 200 kpa. assuming the ideal gas model and neglecting the kinetic and potential energies, determine the change in entropy, heat transfer and work for each kilogram of co2.
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Engineering, 04.07.2019 18:10
An ideal otto cycle with air as the working fluid has a compression ratio of 8. the minimum and maximum temperatures in the cycle are 300 k and 1340 k. use constant specific heats at room temperature to determine (a) the amount of heat transferred to the air during the heat- addition kj/kg, (b) the thermal efficiency, and (c) the thermal efficiency of a carnot cycle ope limits. process, in rating between the same temperature
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Air enters the compressor of an air-standard Brayton cycle with a volumetric flow rate of 60 m3/s at...
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