Engineering Fundamentals
6th Edition
ISBN: 9780357112144
Author: Saeed Moaveni
Publisher: MISC PUBS
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Chapter 13, Problem 33P
To determine
Calculate the electricity generated by the wind turbine.
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You are asked to design a small wind turbine (D-x+1.25 ft, where x is the last two digits of your student ID). Assume the wind speed is 15 mph at T-10°C and p = 0.9 bar. The efficiency of the turbine is n-
25%, meaning that 25% of the kinetic energy in the wind can be extracted. Calculate the power in watts that can be produced by your turbine. Scan the solution of the problem and upload in the vUWS before
closing the vUWS or moving to other question. DO NOT EMAIL TO LECTURER.
x=08
Please explain a little your answer.
Q.2
Flow Between pipes
A car has a frontal projected area of 1.6
m² and travels at 60km/hr. It has a drag
coefficient of 0.35 based on frontal area.
Calculate the power required in kW to
overcome wind resistance by the car.
3
Density of air= 1.2 kg/m³
Chapter 13 Solutions
Engineering Fundamentals
Ch. 13.2 - Prob. 1BYGCh. 13.2 - Prob. 2BYGCh. 13.2 - Prob. 3BYGCh. 13.2 - Prob. 4BYGCh. 13.2 - Prob. 5BYGCh. 13.2 - Prob. BYGVCh. 13.4 - Prob. 1BYGCh. 13.4 - Prob. 2BYGCh. 13.4 - Prob. 3BYGCh. 13.4 - Prob. 4BYG
Ch. 13.4 - Prob. BYGVCh. 13.5 - Prob. 1BYGCh. 13.5 - Prob. 2BYGCh. 13.5 - Prob. 3BYGCh. 13.5 - Prob. 4BYGCh. 13.5 - Prob. 5BYGCh. 13.5 - Prob. BYGVCh. 13 - Prob. 1PCh. 13 - Prob. 2PCh. 13 - An elevator has a rated capacity of 2200 lb. It...Ch. 13 - Prob. 4PCh. 13 - Prob. 5PCh. 13 - Prob. 6PCh. 13 - Prob. 7PCh. 13 - Prob. 8PCh. 13 - Prob. 9PCh. 13 - Prob. 10PCh. 13 - Prob. 12PCh. 13 - Prob. 14PCh. 13 - Prob. 15PCh. 13 - Prob. 16PCh. 13 - Prob. 17PCh. 13 - Prob. 18PCh. 13 - Prob. 19PCh. 13 - Prob. 20PCh. 13 - Prob. 22PCh. 13 - Prob. 23PCh. 13 - Prob. 24PCh. 13 - Prob. 25PCh. 13 - Prob. 26PCh. 13 - Prob. 28PCh. 13 - Prob. 29PCh. 13 - Prob. 30PCh. 13 - Prob. 31PCh. 13 - Prob. 32PCh. 13 - Prob. 33PCh. 13 - Prob. 34PCh. 13 - Prob. 35PCh. 13 - Prob. 37PCh. 13 - Prob. 38P
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- A pipe line of length 2000 m is used for power transmission. If 110.3625 KW power is to be transmitted through the pipe in which water having a pressure of 490.5 N/cm² at inlet is flowing. Find the diameter of the pipe and efficiency of efficiency of transmission if the pressure drop over the length of pipe is 98.1 N/cm². Take f=0.0065.arrow_forwardFluid Mechanics : Energy and Power: An engineer is considering the development of a small wind turbine (D=1.25m) for home applications. The design wind speed is 15 mph(6.706m/s) at 10oC and 0.9 bar (90kPa). The efficiency of the turbine is 20%, that is 20% of the kinetic energy of the wind can be extracted. Estimate the power in watts that can be produced by the turbine. Hints: 1) In the time interval delta t, the amount of mass that flows through the rotor is: delta m = mdot delta t 2) The kinetic energy in the flow is: (delta m V2/2)arrow_forwardA pipe of diameter 300 mm and length 3500 m is used for the transmission of power by water. The total head at the inlet of the pipe is 500 m. What willI be the maximum power available at the outlet of the pipe, if the value of f = 0.06?arrow_forward
- Problem T3 If the shaft power is 82kw and the cost of the electricity is $0.10 kwh; estimate the cost of the electricity for one hour. Answer $8.2arrow_forwardPlease answer this NEATLY, COMPLETELY, and CORRECTLY for an UPVOTE. A 6-MW offshore wind turbine has a capacity factor of 40%. It has a height of 120 m, and 107-m long blades. The angular acceleration is 1.17 rad/s2. Assume that the distance from the center of the turbine to the connection with the blade is negligible, and that the turbine starts from rest. At t = 12 s, calculate the velocity and the acceleration for points (a) at half the length and (b) at the tip of the blade.arrow_forward1.The wind turbine gives the following data: Blade length, 1 = 52 m, Wind speed, V= 12 m/s, Air density, wind and power available in the rotor. = 1.23 kg/m³, Power Coefficient, C,= 0.4, Calculate the power in the 2.A Site evaluated for a wind farm is observed to have steady winds at a speed of 8.5m/s. Determine the wind energy (a) per unit mass, (b) For a mass of 10 kg and (c) For a flow rate of 1154 kg/s of air. 3.The nominal power of the wind turbine is 3MW at wind speed 11.5m/s, generator efficiency is 94%, gear box efficiency is 0.75, power coefficient of blades is 0.59. What would be the diameter of the rotor?arrow_forward
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