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Question about Turbomachinery - Impulse & Reaction Turbines
An impulse air turbine rotor with a blade speed (U) of 300 m/s is measured to have a relative rotor inlet velocity (W_1) of 750 m/s at an angle of 69 degrees and an outlet relative velocity (W_2) of 660 m/s. Th temperature and pressure in the rotor are 375 K, 0.83 bar. Calculate the rotor efficiency, rotational speed and power output if it has a mean blade diameter of 220 mm, a blade length of 16,, and if it has 360 degrees of full length nozzles.
At the inlet to a reaction air turbine nozzle, the total pressure and total temperature are 7,39 bar, 1240 K.a) If the nozzle has an efficiency of 87% and if the nozzle exit/rotor inlet pressure is 4,1 bar, calculate the nozzle exit velocity (C_1).b) If the nozzle exit angle is 65 degrees and if the rotor speed is 390 m/s, calculate the relative rotor inlet velocity (W_1).c) If the rotor has an efficiency of 84% and an exit pressure of 1,9 bar, calculate the rotor exit relative velocity (W_2).d) Sketch the complete velocity diagrams with approximate blade shapes.
Focus mainly of consumer items such as iPods, coke bottles, running shoes
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Solve for the dynamics of the resulting system for 20 seconds of real time using midpoint method.
Horsepower and efficiency of three-phase motor, If a fully loaded 440V, three-phase motor draws 12.4 A at 86% power factor (pf). It's speed is 1730 rpm and its torque output to a mechanical load is 29.1 lb-ft x 1.356 = 39.5 Nm.
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The entrance is inward projecting. What flow will be expected if the gate valve is one-half open?
Energy in the home, personal energy use and home energy efficiency and Efficient use of ‘waste' heat and renewable heat sources
What will the ratio of the angle of twist be to that of the hollow shaft if the maximum shear stress in the material of 75 N / mm ^2 and what is the ratio of actual permissible shear stress?
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