Question
In: Physics
The electrical power generated by a wind turbine can depend only on L, the length of...
The electrical power generated by a wind turbine can depend only on L, the length of the turbine’s blades, ρ the mass density of the air, and v the speed of the air. Use dimensional analysis to show that the power created by the turbine must be proportional to the cube of the air speed, v. If the air speed doubles the power generated will increase by nearly an order of magnitude! Note that power in the MKS system is measured in Watts where 1[W] = 1 [J/ s] = 1 [kg · m^2/ s^3] .
Solutions
genius_generous answered 2 years agoRelated Solutions
You want to conduct an experiment to understand how the power generated by a wind turbine...
You want to conduct an experiment to understand how the power
generated by a wind turbine is affected by the speed of the wind.
Write your hypothesis (1point) and explain how you can conduct the
experiment (assume that you’re in laboratory conditions like we
preformed the Wind Turbine experiment) eg the experiment needed and
the procedure of the experiment (1 point). Which
parameters/conditions in the experiment should be kept under
control and which parameters should be observed to test the...
You want to conduct an experiment to understand how the power generated by a wind turbine...
You want to conduct an experiment to understand how the power
generated by a wind turbine is affected by the speed of the wind.
Write your hypothesis (1point) and explain how you can conduct the
experiment (assume that you’re in laboratory conditions like we
preformed the Wind Turbine experiment) eg the experiment needed and
the procedure of the experiment (1 point). Which
parameters/conditions in the experiment should be kept under
control and which parameters should be observed to test the...
b)Consider an ideal wind turbine with a rotor diameter of 126m. What is the power generated...
b)Consider an ideal wind turbine with a rotor diameter of 126m.
What is the power generated by this turbine if the wind moves at 20
ms-1 into the turbine, exerts no drag on the rotor
blades, etc., and exits the turbine at 15ms-1? Calculate
the efficiency of the wind turbine described,Give your answer as a
fraction not a percentage.
d)The U.S. consumes 20,680,000 barrels of crude oil per day.
There are 159 L in a barrel of oil. Crude oil...
What are the methods to access the bird risk with wind turbine power system?
What are the methods to access the bird risk with wind turbine
power system?
Write a project proposal on the topic Power Electronics Converters for Wind Turbine Systems
Write a project proposal on the topic Power Electronics
Converters for Wind Turbine Systems
Electrical power is to be produced from a steam turbine connected to a nuclear reactor. Steam...
Electrical power is to be produced from a steam turbine
connected to a nuclear reactor. Steam is obtained from the ractor
at 540 K and 36 bar, the turbine exit pressure is 1.0 bar, and the
turbine is adiabatic.
a) Compute the maximum work per kilogram of steam that can be
obtained from the turbine.
A clever chemical engineer has suggested that the single-stage
turbine considered here be replaced by a two-stage adiabatic
turbine, and that the steam exiting from...
Produce a flowchart to calculate the power performance analysis [Thrust & Torque] of a wind/tidal turbine...
Produce a flowchart to calculate the power performance analysis
[Thrust & Torque] of a wind/tidal turbine between the
experimental data and theoretical data of a hydrofoil by using
Blade Element Momentum Theory. [Hints: polynomial fit and Viterna
equations are included in calculation and Power Coefficient (for
both exp and theo) vs TSR graph is expected as the result.]
The wind power turbine is generating different amounts of energies at various time periods as shown...
The wind power turbine is generating different amounts of
energies at various
time periods as shown below. The density of air is 0.093 lb/ft3
and the length of
the blade in turbine is 6200 cm. if the turbine rotates with
different speeds it
generates various tip speed ratios. Show and explain the effect of
air speeds on
tipspeed ratios by drawing a graph (excel or handwritten).Consider
the rotation
speed is 22 rpm and power coefficient as 0.45. (8)
S.No
Energy(MWH)...
1) How is the real power controlled in a grid-connected wind turbine employing a permanent-magnet synchronous...
1) How is the real power controlled in a grid-connected wind
turbine employing a permanent-magnet synchronous generator (PMSG)
with rectifier and inverter? *
rotational speed
inverter output current
generator output voltage
rectifier output voltage
inverter output voltage
2) How do you compare the size of power electronics in a
grid-connected 1 MW variable-speed wind turbine employing DFIG and
PMSG? *
same
no power electronics in DFIG
no power electronics in PMSG
smaller in PMSG
smaller in DFIG
3)What is the...
1. A string is fixed at both ends. If only the length (L) increases, then the...
1. A string is fixed at both ends. If only the length (L)
increases, then the fundamental frequency goes: (circle one)
up
down
2. If only the tension (T) increases, the fundamental goes:
(circle one)
up
down
3. If only the linear mass density increases, the fundamental
goes: (circle one)
up
down
4. The tension (T) in a string fixed across a 1 m length (L) is
400 Newtons, and the linear mass density of the string is 0.01
kg/m....
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