Great equation for making wind usefull. Although i think it would make more sense if you explained the mass part of the equation as a mass flow rate this would explain the power vs energy better and why its v^3 in the power equation. E/time = Power = 1/2 (density of air × area swept x flow rate of air(wind speed)) x wind speed^2 . This looks more like the equation Power= mass * velocity^2) / 2t
But why is it v^3 physically? Very unintuitive. It should be kg/m (mass per linear meter) * m/s (linear meter flowing per second) = mass/time. The cube is a distraction and is merely book keeping/organization, right?
The V3 is because you combined terms. The mass in .5mv2 is calculated given the rate at which the air passes through the wind turbine. It's not like measuring a fixed quantity of air (although you could do this). The mass is calculated from an amount of air passing through the area of the turbine blades over a length of time. This is why if you look at mass as a mass flow rate then you can separate the velocity of the air from the V3 and it looks like the simplified formula E= .5 (mass flow rate) v2.
Pi x r^2 x density is not equal to mass! To get mass you need to have volume x density. To get volume (a cylinder of air) you multiply area (Pi r^2) x density x h (m/s). That is why you have (m/s) ^3 on the bottom.
Can you help me, for below mentioned questions? i need answer please Q 1-What is the present value of the payment cost made to decommission the wind farm (in € and answer as an absolute value)? Q 2-What is the present value of all the costs (in € and answer as an absolute value)? Q 3 -What is the levellised annual cost (in €/year and answer as an absolute value)? Q 4-What is the levellised cost of energy (LCoE) in €c/kWh and answer as an absolute value?
The algebraic breakup in 4:44 doesn't make any sense, ρ * π * r² ha units of [mass / m] not just mass. On the other side in one equation you have v² and in the other one you have v³.
Any one can help me, for below mentioned questions? i need answer please Q 1-What is the present value of the payment cost made to decommission the wind farm (in € and answer as an absolute value)? Q 2-What is the present value of all the costs (in € and answer as an absolute value)? Q 3 -What is the levellised annual cost (in €/year and answer as an absolute value)? Q 4-What is the levellised cost of energy (LCoE) in €c/kWh and answer as an absolute value?
Can someone please explain why a house-wind-turbine looses efficiency (slows down) when energy demand is increased (ie: a microwave is used?). What is that called? Thanks.
Can someone please explain why a house-wind-turbine looses efficiency (slows down) when energy demand is increased (ie: a microwave is used?). What is that called? Thanks.
thank you so much. this made the understanding so much clear. sustainable energy for the future!!
Nice explanation dear,Thank you
nicely explained.
Excellent tutorial! Two thumbs up to you ma'am.
Thank-you!
Great equation for making wind usefull. Although i think it would make more sense if you explained the mass part of the equation as a mass flow rate this would explain the power vs energy better and why its v^3 in the power equation. E/time = Power = 1/2 (density of air × area swept x flow rate of air(wind speed)) x wind speed^2 . This looks more like the equation Power= mass * velocity^2) / 2t
But why is it v^3 physically? Very unintuitive. It should be kg/m (mass per linear meter) * m/s (linear meter flowing per second) = mass/time. The cube is a distraction and is merely book keeping/organization, right?
The V3 is because you combined terms. The mass in .5mv2 is calculated given the rate at which the air passes through the wind turbine. It's not like measuring a fixed quantity of air (although you could do this). The mass is calculated from an amount of air passing through the area of the turbine blades over a length of time. This is why if you look at mass as a mass flow rate then you can separate the velocity of the air from the V3 and it looks like the simplified formula E= .5 (mass flow rate) v2.
Nice video
thankyou for the video
Can you show the conversion of kg - m^2/s^3 to Watts?
Thank you Ma'am😊😊
I like it good video
I'm a little confused here. Doesn't Cp already includes electrical and mechanical efficiencies of the turbine?
Thanks❤️
Thanks for your posting. But be better please attach with some equation interns of calculation process
Pi x r^2 x density is not equal to mass! To get mass you need to have volume x density. To get volume (a cylinder of air) you multiply area (Pi r^2) x density x h (m/s). That is why you have (m/s) ^3 on the bottom.
Very clear explanation.
Thanks..
how is the formula used for vawt?
A horizontal axis windmill has 5 blades. During regular operation of this windmill , the number of blades that will capture the energy in the wind =
Dw about it
What is the 1/2 for??
at wind speed of 10mph ,20 mph. 30 mph, 40mph, etc what is the kenetic power in kwh
what about Betz limit?
It's simple. Just go to INPLIX page and make it yourself.
Can you help me, for below mentioned questions? i need answer please
Q 1-What is the present value of the payment cost made to decommission the wind farm (in € and answer as an absolute value)?
Q 2-What is the present value of all the costs (in € and answer as an absolute value)?
Q 3 -What is the levellised annual cost (in €/year and answer as an absolute value)?
Q 4-What is the levellised cost of energy (LCoE) in €c/kWh and answer as an absolute value?
@@asadawan8649 we seem to be missing a lot of information there
Wind pushes what it touches it can't push the gaps between the blades regards Graham Flowers
I think you can see some good advices on Avasva solutions.
The algebraic breakup in 4:44 doesn't make any sense, ρ * π * r² ha units of [mass / m] not just mass. On the other side in one equation you have v² and in the other one you have v³.
so a turbine powered car is generating electricity?
Any one can help me, for below mentioned questions? i need answer please
Q 1-What is the present value of the payment cost made to decommission the wind farm (in € and answer as an absolute value)?
Q 2-What is the present value of all the costs (in € and answer as an absolute value)?
Q 3 -What is the levellised annual cost (in €/year and answer as an absolute value)?
Q 4-What is the levellised cost of energy (LCoE) in €c/kWh and answer as an absolute value?
Can someone please explain why a house-wind-turbine looses efficiency (slows down) when
energy demand is increased (ie: a microwave is used?). What is that called? Thanks.
Betz limit has been smashed and debunked regards Graham
Plz answer...
Watch youtube video on the gyro wind turbine has smashed the Betz limit regards Graham Flowers MEng
haaahahhhahha i enjoyed
give us the kwh of kenetic energy of wind at different miles ph
ممكن هذا الفيديو بالعربية رجاءا
A windmill is not a wind turbine
There is no kinetic energy in the wind there is force Mv squared kinetic energy of consistent work from a consistent force regards Graham Flowers
Can someone please explain why a house-wind-turbine looses efficiency (slows down) when
energy demand is increased (ie: a microwave is used?). What is that called? Thanks.
Resistance