The blades of a wind turbine turn a large shaft a relatively slow speed. The rotational speed s increased by a gearbox that has an efficiency of 0.93. In turn, the gearbox output shaft drives an electric generator with an efficiency of 0.95. The cylindrical nacelle, which houses he gearbox, generator, and associated equipment, is of length L = 6 m and diameter D = 3 m. f the turbine produces P = 2.5 MW of electrical power, and the air and surroundings emperatures are T = 25 °C and Tsur = 20 °C, respectively, determine the minimum possible operating temperature inside the nacelle. The emissivity of the nacelle is 0.83, and the convective heat transfer coefficient is h = 35 W/m² .K. The surface of the nacelle that is djacent to the blade hub can be considered to be adiabatic, and solar irradiation may be neglected.

Q: Please answer my quistion. The indicated efficiency of a steam engine is 65 %. The engine entrance…

A: Given, h1 = 2600 kJ/kg h2 = 2100 kJ/kg m˙=3000 kg/hr  ηI=65%ηM=90%

Q: he design of a new dam reveals that a water head of 10 meter and water flow rate of 100 cubic meter…

A: Given:   Water head, h=10 m Water flow rate, Q= 100 cubic meter per second

Q: 5. The horizontal pump in the Figure discharges 10°C water at 35 m/h. Neglecting losses, what power…

A:

Q: A tank is full of water. Find the work W required to pump the water out of the spout. (Use 9.8 m/s2…

A: Consider following given figure.Acceleration due to gravity = Density of water = To find: The work W…

Q: 5. Consider a propeller based aircraft with a supercharger. It operates with a revo of 2700 rpm, has…

A: Assume the given process is adiabatic therefore, apply the relation as follows.

Applied Fluid Mechanics

A fluid is a substance that is continuously deformed by the application of shear stress. The rate of deformation of a fluid depends on its viscosity. The fluid tries to flow when it interacts with some other system.