Hurumanu - Wind Power

Hurumanu - Wind Power

Extreme weather

Measuring weather.

Definitions:

1.  Anemometer: An instrument for measuring the speed of the wind.
2. Beaufort wind scale: The Beaufort scale is an empirical measure that relates wind speed to observed conditions at sea or on land. 

MATERIALS 

1. tape  
2. pencel  
3. x2 sticks  
4.   x4 cups
5. pin

STEPS

1.   Step one tape the four the cups on each edge of the sticks.
2.    Tape the sticks together to make a cross.
3.   Pin the cross to the rubber that is on the pencel.

Group Investigation.

Groups size: 5 

Roles:

• Timekeeper
• Counter
• Recorder
• Anemometer Manager
• Wind Manager

1. Mount the anemometer in a place that has full access to the wind from all directions.
2. When the timekeeper says "Go", the counter in each group will count how many times the marked cup passes them in one minute and write it down.
3. Repeat the above step four (4) times and record the number of spins on the chart.

findings

	Place name on school grounds	Number of Spins in 15 seconds
1.	Field	20
2.	Old J Block site	15
3.	Grass hill in a quad	10
4.	Tennis Court gate	3

• USING A4 PAPER DRAW YOUR RESULTS ON A GRAPH.
• TAKE A PICTURE OF THE GRAPH AND UPLOAD IT TO YOUR BLOG

WHICH IS THE WINDEST AREA AND WHY? the filed is the windest area because there is nothing to stop the wind.

WHICH IS THE CALMEST AREA AND WHY? the tennis court gate because there are trees to stop the wind.

WHERE IS THE BEST PLACE ON LAND TO BUILD A WINDMILL? On the field, because  there is lots of space and there is lots of wind

CONCLUSION:

I found out the in a big open space will have more wind and a place with stuff blocking it will have not lots of wind. 

On the field, the wind spun the anemometer 80 per min and the Beaufort Scale was a three.

At the old J block, site wind spun the anemometer 60 per min. That is once per second.

 At the grass hill is crowned by buildings to there was not lots of wind. There were only 40 spins per minute. 

And finally the gateway to the court It only spun 12 times per minute. because there were lots of trees around it and stopped the wind from getting there.

Wind

Beaufort Wind Scale

Beaufort Force	Wind Speed (KPH)	Spins	Indicators	Terms Used in NWS Forecasts
0	0-2	0	Calm; smoke rises vertically.	Calm
1	2-5	10	Shown by direction of wind smoke drift, but not by wind vanes.	Light
2	6-12	40	Wind felt on face, leaves rustle; ordinary vanes moved by wind.	Light
3	13-20	80	Leaves and small twigs in constant motion; wind extends light flag.	Gentle
4	21-29	130	Raises dust and loose paper; small branches are moved.	Moderate
5	30-39	190	Small trees in leaf begin to sway; crested wavelets form on inland waters.	Fresh
6	40-50	250	Large branches in motion; whistling heard in telephone wires; umbrellas used with difficulty.	Strong
7	51-61	320	Whole trees in motion; inconvenience felt walking against the wind.	Strong
8	62-74	390	Breaks twigs off trees; generally impedes progress.	Gale
9	75-87	470	Slight structural damage.	Gale
10	88-101	550	Seldom experienced inland; trees uprooted; considerable structural damage occurs.	Whole gale
11	102-116	640	Very rarely experienced inland; accompanied by widespread damage.	Whole gale
12	117 or more	730+	Very rarely experienced; accompanied by widespread damage.	Hurricane

Based on your findings what was the Wind Speed and the Beaufort Wind Force for each area.

	Spins per minute	Wind speed ( kph)	Beaufort Scale
Field	80	13-20	3
Old J Block site	60	13-20	2
Grass hill	40	6-12	2
Tennis Court Gate	12	2-5	1