Calculate the required number of turbines we need in a wind farm generating 12 MW if cach turbine has two blades each 12m length of Betz limits 59%, while the air velocity in that area was 12m/sec and the air density is 1.19 kg/m3

Calculate the required number of turbines we need in a wind farm generating 12 MW if cach turbine has two blades each 12m length of Betz limits 59%, while the air velocity in that area was 12m/sec and the air density is 1.19 kg/m3

Delmar's Standard Textbook Of Electricity

7th Edition

ISBN:9781337900348

Author:Stephen L. Herman

Publisher:Stephen L. Herman

Chapter29: Dc Generators

Section: Chapter Questions

Problem 1PA: You are working as an electrician in a large steel manufacturing plant, and you are in the process...

See similar textbooks

Related questions

Q: It is estimated that the mass of the earth is 5.98 x 1024 kg; its mean radius is 6.38 x 106 m. Find…

A: Given :Mass of earth,mE=5.98 x 1024 kg=5.98 x 1027 gmMean radius, rmean=6.38 x 106 m=6.38 x 108 cm

Q: A fan with a flow rate of 0.34 m3/min will be used to cool a desktop computer. Calculate the mass…

A: It is given that: Flow rate=V˙=0.34 m3/minDensity of air=ρ=0.7 kg/m3Average velocity of air=vavg=110…

Q: Determine the wind energy per unit mass if the winds speed is 39 Km/Hr.

A: according to question we have to find the value of wind energy per unit mass.

Q: Find the approximate increase by the use of differential, In the volume of the sphere if the redius…

A: Given,Rinitial=2R'(final)=2.05Change in radius dR=0.05 ∆R=0.05

Q: An engineer creates a model to predict the electric consumption of a household in summer in a day…

A: Given The electric consumption of a House hold when aircon is not used is 23 kwh per day If the…

Q: Air Density of environment with 76mm Hg pressure and 45 degree temperature?: a. 0.9445 b. 0.9545 c.…

A: What is air density ? Choose the correct option

Q: What is the linear velocity of a car that ?drives 140 km in 2 hours

A: As per the guidelines, we supposed to answer one question at a time so please ask other questions…

Q: 7. If the absolute pressure in a gas is 276 KPa and the atmospheric pressure is 84.6 KPa, find the…

A: (7) Given, Pabs=276 KPaPatm= 84.6 KPaPg=?

Q: Pazm Po Fluid P -B

A: Given - Density = 13590 kg/m3 Height difference between two columns = 24 cm

Q: Calculate the kinetic energy in Joule, of a car of mass 1200kg travelling at 105km/h. 17496 One…

Q: Q5: Calculate the total energy in KWh that can be generated assuming hydraulic efficiency of 85% and…

A: Note: Since you have posted multiple independent questions in the same request, we will solve the…

Q: Develop an expression for voltage and current traveling on a transmission line assuming all its…

A: we need to develop an expression for voltage and current traveling on a transmission line assuming…

Q: At a shore facing the Pacific Ocean, the average wind speed was measured to be 10 m/s. Determine the…

A: Given,speed(v)=10 m/sDiameter(D)=45 mAir density(ρa)=1.25 kg/m3Efficiency(η)= 0.28%

Q: Two common methods of improving fuel efficiency of a vehicle are to reduce the drag coefficient and…

A: Given data: The width of car is: 1.85 m. The height of car is: 1.70 m. The drag coefficient is: 0.30…

Q: 6. A fan that consumes 20 W of electric power when operating is claimed to discharge air from a…

A: Claim Is not reasonable. Explanation is given in step-2

Q: Four industrial centers are located at the corners of a square of 31300 m side. The loads are 460000…

A: Substation supplies power to industrial loads To obtain better power transfer efficiency from…

Q: An electric toaster works by radiative heat transfer. On each side of a four-slice toaster, there…

A: Considering the power is radiated in the form of heat. Then by the Stefan Boltzmann law the power…

Q: 8- Calculate the required number of turbines we need in a wind farm generating IMW if each turbine…

A: Efficiency of an actual wind turbine Power generated by the turbine

Q: What is the minimum area (in square meters) of the top surface an ice slab 0.445 m thick floating on…

A: A surface that reduces its area locally is called a minimum surface. This is the same as having a…

Q: During the gold medal hockey game between USA and Canada, a shot was taken from 11.3 meters away at…

A: Given: Velocity = 28.33 m/sec Distance = 11.3 meters Time taken = ?

Q: 8. An electrically charged body has an excess of 1015 electrons. Calculate its charge in C. 9. A…

A: The solution is given below

Q: What is the linear velocity of a car that drives 140 km in 2 hours?

A: Given Data Distance = 140 km Time = 2 hour

Q: Q4: A thermal power plant spends 25 x 10° in one year as coal consumption. The coal has heating…

A: The average load on the power plant is calculated as illustrated below.

Q: Calculate energy available in 9.5 Kg wind, if the power available at the rotor of a wind turbine is…

A: Given data m= 9.5 kg P= 5.4 KW D= 6.8 m ρ=1.23 kg/m3Cp=0.3 Formula for generated power of wind…

Q: 5. A body with a mass of 175 kg is moved through 126 cm by a force of 61,25 N. The body is supported…

A: Given:h=39 mm=175 kgg=9.81 m/s

Q: reservoir is constructeo mountain at 5 neight from ground level. Water flows down at a rate velocity…

Q: You drive your car in a straight line at 15 m/s for 10 kilometers, then at 25 m/s for another 10…

A: given data: You drive your car in a straight line at 15 m/s for 10 kilometers, then at 25 m/s for…

Q: What is mass per volume? a. density b. pressure c. power d. work e. a & b This is caused by the…

A: 1. Option (A) (density) The formula for density is d = M/V, where d is density, M is mass, V…

Q: A wind turbine has following data: Blade Length I= 40 m, Wind Speed v = 20 m/s and Air Density =…

Q: 1. A wind turbine travels with the speed is 10 m/s and has a blade length of 20m. Determine a)…

Q: Q-2/ An office room has an area of 7*5 square meter and 4m height, this room is heated by the…

A: Following are the parameters and values that are provided in the above question.

Q: Two cities separated by 10,000 ft is connected by telephone wires whose thermal coefficient of…

A: In this question, We need to determine the resistance R at the 25°C temperatures?

Q: Q5: Calculate the total energy in KWh that can be generated assuming hydraulic efficiency of 85% and…

A: Given values are - Hydraulic efficiencyηh=85%=0.85Electrical…

Q: 4. A wind turbine has a blade length of 15 m. In a given day, average speed of wind for 10 hours is…

Q: Consider a portable electric blanket that runs on a 3 V battery. If you use copper wire with a 0.25…

Q: . Review. The heating element of an electric coffee maker operates at 120 V and carries a current of…

A: Given, Voltage (V) = 120 V Current (I) = 2 A Mass of water (m) = 500 grams Initial temperature (T1)…

Q: A horizontal-axis wind turbine with rotor 20 meters in diameter is 30-% efficient in 10 m/s winds at…

A: Answer -

Q: G(5) = 70(S+1) / S°(S+4)(S+6) Determine the following:

A: I have found the answer considering the information provided.

Q: Mark the following statements as true or false Real gases act more like ideal gases as the…

Q: An electric crane lifts 2 tons of mass to a height of 10 m in 10 second if overall efficiency of the…

A: Referring to the given points:

Q: Q5/A household refrigerator with a COP of 1.2 removes heat from the refrigerated space at a rate of…

Q: 3. A wind turbine has a blade length of 25 m. In a given day, average speed of wind for 7 hours is 9…

Q: A Carnot heat engine operates between a source at 1000 K and a sink at 300 K. If the heat engine is…

Q: For an electrical component, the formulas for charge and voltage are given below. A is 9 coulombs,…

Q: Calculate the energy of wind per unit mass if the power available at the rotor of a wind turbine is…

Q: Q9/ When a man returns to his well-sealed house on a summer day, he finds that the house is at 32°C.…

Q: Wind mill with 2 m diameter works on the principle of converting kinetic energy of the wind in to…

A: Diameter =2m Radius r=1 m. Area a=Πr²=3.14 Air density ρ=1.225kg/m³ Wind speed v=20 m/sec

Concept explainers

DC Generator

An electromechanical machine which converts input mechanical energy to respective output electric energy is called a generator.

Question

Calculate the required number of turbines we need in a wind farm generating 12 MW if each
turbine has two blades each 12m length of Betz limits 59%, while the air velocity in that area
was 12m/sec and the air density is 1.19 kg/m3

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

SEE SOLUTION Check out a sample Q&A here

Step 1

VIEW

Step 2

VIEW

Step by step

Solved in 2 steps

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, electrical-engineering and related others by exploring similar questions and additional content below.

Similar questions

A small wind turbine with a blade of diameter 205 cm is subjected to velocity 11.3 m/s . Calculate the power and energy produced by the turbine per year. Efficiency is 31% and density of air is 1.3 Kg/m3
A 100MW hydro-electric station is supplying full load for 10 hours in a day. The water is supplied from a reservoir of 1km2 surface area. Calculate the reduction in the water level of the reservoir in one day. Assume effective head of water as 200 m and efficiency of the the station is 80%.
Estimate the AEP for a 3-MW wind turbine in a wind regime that has a CF= 30%. For this turbine explain why the increase of wind speed to levels greater than 25 m/s generates less electrical power compared to wind speeds around 11 m/s
Do you agree that wind turbine will operate and generate electrical power atany wind speed? Justify your answer.
Q 03: Briefly discuss, how the energy consumptions for operations of a fork lifter could be justified. Suppose that a fork lifter has a total energy consumption of 150 W.Hr. The total trips of the vehicle are 375. How the battery duty cycle may be calculated in this case?
Question 5 A natural gas plant with a 50MW operates at an average loading of 75% year round. How many kWh does the plant to supply to the grid? Question 6 For Question 5, the natural gas power plant costs $175,000,000 to build and costs $20M a year to operate. What is the average cost per kWh or MWh for the power produced if the estimated plant life is 20 years? Assume a discount rate of 5%.
A hydroelectric plant has a reservoir of area 2 sq. kilometres and of capacity 5 million cubic meters. Thenet head of water at the turbine is 50 m. If the efficiencies of turbine and generator are 85% and 95%respectively, calculate the total energy in kWh that can be generated from this station. If a load of 15000kW has been supplied for 4 hours, find the fall in reservoir.
A barangay power station supplies 60kW to a load over 2,500ft, 100 mm², two conductors copper feeder. The resistance of which is 0.0078 ohm per 1,000 ft the bus bar voltage is maintained constant at 600V. Determine the load current.
Verify that the solution to the following equation:uEB = (1/2)Epsilon0E2 + B2/2mu0 = Epsilon0E2 = B2/mu0 = (EB)/mu0chas units of volume current density [A/m2].
10: Which energy can produde 2 trillion watts of electricity? a. Ocean Wave Energy b. OTEC c. Wind d. Fuel cell 11: A PV module can produce electricity by using fuel and oxidant. Select one: True False
Your company is considering the installation of a 2 MW wind turbine with a rotor diameter of 90 m in a location with average wind v = 8.5 m/s. The turbine has a cut-in velocity of 5 m/s and a cut-out velocity of 25 m/s. The capacity factor is 0.45. The installed cost of the turbine is $3,500,000. Operating expenses are $225,000 per year. The system has a power coefficient (electric power generated divided by wind power) of 0.45. What price would you have to get for the electricity you produce to obtain a 10% return on the plant investment assuming a project lifetime of 20 years? Use the tables for the cumulative wind power distribution in the notes on wind probability to answer this question. Assume an air density of 1.225 kg/m3.
A hydro-electric generating station is supplied from a reservoir of capacity 5x10^7 cubic metres at a head of 250 metres. Find the total energy available in kWh if the overall efficiency is 70% note: please solve that clear answer.