Wind Power B/C

Test your knowledge of various Science Olympiad events.
User avatar
samlan16
Member
Member
Posts: 528
Joined: Mon Dec 30, 2013 2:54 pm
Division: Grad
State: GA
Has thanked: 0
Been thanked: 5 times

Re: Wind Power B/C

Post by samlan16 »

finagle29 wrote:
The Betz Limit is the maximum fraction of kinetic energy available in the wind that any device/turbine/generator can extract.  It's 16/27 or about 59% and it is so low because air needs to move on the other side of the turbine to make room for more air, so a minimum of ~41% of the kinetic energy that comes into the turbine must exit to keep the air moving away from the back end so air can keep flowing through and the turbine can keep spinning.
sorry it's poorly worded
Essentially correct. It's also worth noting that once the KE of flowing air is extracted, it stops moving and is stuck behind the blades, thus impeding the rotation of the turbine. THAT is what regulates the Betz limit.
Old fart who sort of did things sort of for some schools.
GoofyFoofer
Member
Member
Posts: 304
Joined: Thu Feb 27, 2014 4:15 pm
State: OH
Has thanked: 0
Been thanked: 1 time

Re: Wind Power B/C

Post by GoofyFoofer »

I'll start this off again
What was noteworthy in 1887 regarding wind energy, who was responsible, and where did it take place?
Smith Middle School
Dayton, OH
furypanda1
Member
Member
Posts: 3
Joined: Mon Apr 06, 2015 12:32 pm
Division: C
State: NY
Has thanked: 0
Been thanked: 0

Re: Wind Power B/C

Post by furypanda1 »

GoofyFoofer wrote:I'll start this off again
What was noteworthy in 1887 regarding wind energy, who was responsible, and where did it take place?
Charles Bush in Cleveland,OH invented the first electricity generating windmill in 1887.
GoofyFoofer
Member
Member
Posts: 304
Joined: Thu Feb 27, 2014 4:15 pm
State: OH
Has thanked: 0
Been thanked: 1 time

Re: Wind Power B/C

Post by GoofyFoofer »

Off
furypanda1 wrote:My timeline says Brush built it in 1888.
furypanda1 wrote:
GoofyFoofer wrote:I'll start this off again
What was noteworthy in 1887 regarding wind energy, who was responsible, and where did it take place?
Charles Bush in Cleveland,OH invented the first electricity generating windmill in 1887.
My timeline says Brush built it in 1888.
I have
James Blyth with the first electricity-producing windmill in Kincardine, Scotland
in 1887.
Although now that I look back on it, I notice different sources are conflicting...
Smith Middle School
Dayton, OH
LIPX3
Member
Member
Posts: 95
Joined: Sun Jan 10, 2016 8:41 am
Division: C
Has thanked: 0
Been thanked: 2 times

Re: Wind Power B/C

Post by LIPX3 »

GoofyFoofer wrote:Off
furypanda1 wrote:My timeline says Brush built it in 1888.
furypanda1 wrote:
Charles Bush in Cleveland,OH invented the first electricity generating windmill in 1887.
My timeline says Brush built it in 1888.
I have
James Blyth with the first electricity-producing windmill in Kincardine, Scotland
in 1887.
Although now that I look back on it, I notice different sources are conflicting...
I have Charles Bush in 1887. They've asked that question on several tests.
GoofyFoofer
Member
Member
Posts: 304
Joined: Thu Feb 27, 2014 4:15 pm
State: OH
Has thanked: 0
Been thanked: 1 time

Re: Wind Power B/C

Post by GoofyFoofer »

LIPX3 wrote:
GoofyFoofer wrote:Off
furypanda1 wrote:My timeline says Brush built it in 1888.
My timeline says Brush built it in 1888.
I have
James Blyth with the first electricity-producing windmill in Kincardine, Scotland
in 1887.
Although now that I look back on it, I notice different sources are conflicting...
I have Charles Bush in 1887. They've asked that question on several tests.
Do you have anything about Blyth?
Smith Middle School
Dayton, OH

Return to “2016 Question Marathons”