Mechanical Engineering A turbine is running at rated power of 5 MW with the low speed shaft spinning at 12 RPM, with a wind speed of 10 m/s. The drive train has a polar moment of intertia of 50 million kg-m2. The wind suddenly increases in speed to 12 m/s for a 10 second period. What will be the speed of the rotor after that 10 second period, if no control changes are made to the turbine (i.e power delivered to the grid continues at 5MW, and no change in blade pitch angle, no change in Cp, etc.).

Mechanical Engineering A turbine is running at rated power of 5 MW with the low speed shaft spinning at 12 RPM, with a wind speed of 10 m/s. The drive train has a polar moment of intertia of 50 million kg-m2. The wind suddenly increases in speed to 12 m/s for a 10 second period. What will be the speed of the rotor after that 10 second period, if no control changes are made to the turbine (i.e power delivered to the grid continues at 5MW, and no change in blade pitch angle, no change in Cp, etc.).

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

See similar textbooks

Similar questions

Pls. answer thank you! The indicated efficiency of a steam engine is 65%. The engine entrance is 2600 KJ/kg and exit is 2100 KJ/kg. if steam consumption is 3500 kg/hr and mechanical efficiency is 90%, what is the brake power of the engine in Kw?
3. For a Pelton turbine the pressure of the flow before the nozzle is 5 bar while the velocity of flow leaving the nozzle is 31m/s. If the speed of the turbine is 500 rpm and the wheel diameter is 1.5 m, the efficiency of the nozzle will be: а. 0.96 b. 0.97 c. 0.98 d. 0.99 e. None of the them.
Fast pls solve this question correctly in 5 min pls I will give u like for sure Mnty If you are running 3500lbs PSI of steam thru the turbine and your governor trips at 4200 PSI. What is your percentage of increase pressure required to reach the High Limits?
An aircraft engine develops a forward thrust of 15000 N. If the gross mass of the aircraft is 100 tons, what horsepower thus the engine develop if it is flying at 1000 kph? (Please show the solvings step by step please Thank you!)
A Kaplan turbine works under a head of 10 m. The design speed is 50 rpm and turbine develops 40000 kW while 3 discharging at the rate of 550 m'/s. Determine its unit speed, unit power, unit discharge and its specific speed.
What is the turbine output of 100m head and delivering 1 cu. m/ sec in a hydro electric power plant if turbine efficiency is 88%?
Q1: An engine of multi-cylinder is to rotate at a speed of 600 r.p.m. At draw the turning moment diagram to a scale of 1 mm = 250 N-m and 1 mm = 3°, the areas below and above the mean torque line in mm^2 are: + 160,- 172, + 168, 191, + 197, - 162. The speed is to be kept within + 1% of the mean speed of the engine. Determine the necessary moment of inertia of the flywheel. Determine the suitable dimensions of a rectangular flywheel rim if the breadth is twice its thickness. The density of the cast iron is 7250 kg/m3 and its hoop stress is 6 MPa. Assume that the rim contributes 92% of the flywheel effect.
QI: If the overall efficiency of the system and turbine in the figure below is 80 percent. What power is produced for H=60m and Q= 30m'/s? H 3 m diam Water
8. A horizontal axis wind turbine has its blades rotating on an axis uiz-1 to the ground. Page 1 of 2
A turbine running at 400 rpm has a specific speed of 160 rpm and head available is 41 m. If the rating of each turbine installed is 200 kw, how many turbines must be used?
Explain the reason why the wake of a horizontal axis wind turbine at normal operating conditions shows an expansion downstream of the rotor disk. A B C D E A. B It is a direct result of mass & momentum conservation B. If we double the diameter of a wind turbine and every other aspect of its design, hypothetically, stays the same, what is the expected effect on its rated power? C. It is due to the effect of turbulence It is a direct result of momentum conservation D. It is due to the slow-down of the wind on the blades E. It is because of the unsteady flow over the blades it is due to the rotation axis of the wind turbine, horizontal vs vertical Will stay the same Will be halved Will increase in a cubic way Will double Will quadruple E. It will quadruple. Power is proportional to the area so if the diameter goes up by a factor of 2 the power will go up 4 times.
A petrol engine has mechanical efficiency 0.8 and lower calorific value of 44.2 MJ / kg. The engine bore 0.06 m and stroke of 0.08 m. The engine speed of 2000 rpm. The consumption of fuel about 8 liter / h and the brake weight is 200 N. Take the density of fuel as 750 kg / m3 and torque arm of 400 mm.Find the specific fuel consumption. *