SWF #8 Dimensions and Data Traditional Cache
SWF #8 Dimensions and Data
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SWF: No 8 Dimensions and Data
This cache is part of the Snowtown Wind Farm series – designed to give you a little more understanding on different aspects of this project.
You can read the information or not, regardless the caches should be simple to find if you just want to drive around for a couple of hours, enjoy the different panoramas and claim the smileys! Each cache has a number – record this to decode the location of the final cache - SWF #10 All Blown Out.
Hope that you enjoy the series…
The Snowtown Windfarm is comprised of Suzlon S88 2.1 MW wind turbine generators. Suzalon describe them as follows
“Robust Technology wind turbines for tough conditions” !
“The S – 88 2.1 Megawatt wind turbine is designed for maximum reliability in extremes of heat and dust. Unique in its class, it continues to operate over 40 degrees Celsius, without de-rating”
The "88" designation refers to the diameter of the rotor in metres. As the height of the hub is 80 metres, the maximum blade tip height is 124 metres. The diameter of the tower base is 4.5 m at the based and 2.5 m at the top.
The turbines installed are rated to withstand wind speed events of at least 180 km/h, exceeding those wind speeds recorded for the most severe storm events.
Green energy produced will provide enough power for over 70,000 average Australian households per year. Final output is expected to be in excess of 350GWhr of
electricity each year, saving more than 345,000 tonnes of greenhouse gas emissions annually.
•2.1 MW induction generators
• Installed capacity: 98.7MW
• Tower height: 80m
• Blade diameter: 88m
• Rotation Speed: 15 RPM
• Pitch controlled blades - ??Controls aerodynamic power
• Controlled rotor resistance ??Controls Torque
• Swept area of each WTG: 1.5 acres; total swept area for the wind farm: 70.5 acres
• Total number of escorted truck journeys from Adelaide during construction: 350
• 7 km of high tension cables for rock-anchor footings
• 27 km of rock trenching for 33kV reticulation
• 5000 m3 of concrete
• 8000 ton of steel for towers
• 27 km of underground cable
• 18 km overhead 33kV line
• 110 ton weight of 120MVA transformer
• Total weight of cargo to be transported to site: 15000 tonnes
• Wind turbines convert the energy in moving air into electrical energy. The moving air that will pass through the 47 S88 wind turbines in one hour, at full production, will weigh over 16,000,000 tonnes
Payback of the “embodied energy” of the whole wind farm is approximately five months.
If you would like to “talk the torque” detail check out the “Manufacturer's Perspective”, by David Hodson www.eesa.asn.au/media/Suzlon%20Perspective.pdf –
Swaps are measurement themed
Additional Hints
(Decrypt)
jrvtu gbb rnfl
Treasures
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