Question
In: Physics
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 has an average density of 900 kg m-3 and an average heat of combustion ΔHcomb=4.47x104 kJ/kg. Suppose we burn on average 90% of the oil that we consume per day. Calculate the heat produced in one day in the U.S. from burning oil.
e)Suppose this heat were converted to work via heat engines with an average efficiency of 30%. What is the average daily power power output from burning oil?
Solutions
genius_generous answered 2 years agoRelated Solutions
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...
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...
how to calculate a shaft diameter of horizontal wind turbine
how to calculate a shaft diameter of horizontal wind turbine
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?
A turbine flowmeter has a bore of internal diameter 150 mm. The rotor consists of eight...
A turbine flowmeter has a bore of internal diameter 150 mm. The
rotor consists of eight
blades, each of mean thickness 5 mm, mounted on a hub of mean
diameter 35 mm. The clearance
between each blade tip and the bore is 1 mm, and the inlet blade
angle at tip is 20°. Estimate
the meter factor K in pulses/m3.
Consider a steam power plant operating on the simple ideal Rankine cycle. Steam enters the turbine...
Consider a steam power plant operating on the simple ideal
Rankine cycle. Steam enters the turbine at 15 MPa and 600°C. The
steam condenses in the condenser at 10 kPa. Use the EES software to
study the effects of the following cases on the cycle performance
and to sketch the T-s diagram for each case:
Plot the variation of the cycle thermal efficiency with the
turbine isentropic efficiency. Take the isentropic efficiency of
the turbine in the range 70% to...
Consider a steam power plant operating on the simple ideal Rankine cycle. Steam enters the turbine...
Consider a steam power plant operating on the simple ideal
Rankine cycle. Steam enters the turbine at 15 MPa and 600°C. The
steam condenses in the condenser at 10 kPa. Use the EES software to
study the effects of the following cases on the cycle performance
and to sketch the T-s diagram for each case:
#Plot the variation of the cycle thermal efficiency with the
turbine isentropic efficiency. Take the isentropic efficiency of
the turbine in the range 70% to...
A 3-blade wind turbine with a diameter of 16 m spins at 35 rpm at a...
A 3-blade wind turbine with a diameter of 16 m spins at 35 rpm
at a 5000 m elevation where the average wind speed is 30 km/hr. The
atmospheric pressure and temperature at that location are 98 kPa
and -10 oC, respectively. There is a rotating wake behind the
turbine. Neglecting the frictional drag, calculate the maximum
power coefficient and maximum power.
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
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