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This is a compost bin i designed for the international housewares competiton last year and just finished.
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PowerMAX +2Kw/Safer Wholesale
$ 2399.95
2000 W
120 VDC
10.5 ft
4.5 mph
20 mph
70 mph
400
180 lb
Brand/Retailer
Price
Power Output
Output Voltage
Rotor Diameter
Start Up Wind Speed
Nominal Wind Speed
Survival Wind Speed
Nominal Turbine RPM
Shipping Weight
Vertical Axis / Ebay
$ 2265.00
1000 W
? AC
1.5m
5.6 mph
19 mph
26 mph
NA
304 lb
Air X / Sam’s Club
$ 738.88
38k/mo at 12mph
12 VDC
3.8 ft
8 mph
12 mph
110 mph
NA
13 lb
Windterra Eco 1200 / Northern Tool
$ 11999.95
1.2 kW
120 VDC
NA
9 mph
26.8 mph
NA
NA
NA
HoneyWell / Ace Hardware
$ 4599.95
110 W
12 VDC
6.0 ft
1.5 mph
20 mph
40 mph
NA
NA
Sunforce / NorthernTool
$ 169.99
16 W
12 VDC
3.1 ft 2
Brand/Retailer
Price
Power Output
Output Voltage
Panel Surface Area
Shed Lite / NorthernTool
$ 39.99
8 W
? AC
NA
small panel powers small l.e.d light
Backup Power / NorthernTool
$ 8,999.98
3600 running watts
24 VDC
12.4 ft 2
7500 surge watts for up to 15 secondssuitable for home backup
Coleman CL1300 / Walmart
$ 109.82
20 W
12 VDC
6.5 ft 2
trickle charge capapble of charging radios
XPower Powerpack / Amazon
$ 141.14
400 W
12 VDC
1.1 ft 2
portable design with 2AC and 1USB outlets
Extras
solar powered UV filter water jug- a bit too big and awkward
- a smaller sized unit may not be efficient due to necessary size of solar panels and UV filter
solar camping electronics charger- how to fold panels?
- awkward to carry?
- I’m camping, do I need this?
solar night stand clock radio- how much sun can you get on a night stand?
- interesting form options
Green stuff (high in nitrogen) the first active ingredient in good compost, activates the heating process in your compost. Perfect heat-generating materials include: young weeds, grass cuttings,fruit and vegetable scraps, coffee grounds and tea leaves, vegetable plant remains, plants.
Brown stuff (high in carbon) second active ingredient serves as the fiber for compost. Brown stuff includes fall (autumn) leaves; dead plants and weeds; sawdust; cardboard & cardboard tubes old flowers old straw and hay; and small animal bedding.
It is possible to compost without air (anaerobically), but the process employs a different, less efficient bacteria. The pile should be about as damp as a wrung out sponge. Correct blends of compost rely on the moisture that comes in with "green" items. A lid on the compost bin will help to keep moisture in.
Turn your pile regularly, once or twice every week. Small amounts of compost can be produced in a short time period(21- 31 days) with frequent mixing of the correct green /brown blend. Turning the pile encourages the growth of the right kind of bacteria and makes for a nice, sweet-smelling pile that will decompose faster.
reTurnSOLAR POWERED, SELF-TURNING COMPOST BIN
handle / polypropylene / extrusion
arms / HDPE / blow molded
array cover / acrylic / injection molded
photovoltaic array / polyphenylene vinylene
compost filter / steel mesh / die formed
swivel base + motor case / ABS / injection molded
tires / solid rubber / die cured
hatch cover / HDPE / blow molded
trim pieces / HDPE / blow molded
lid / HDPE / roto molded
compost bucket / HDPE / blow molded
wheel hubs / ABS / injection molded
main body / HDPE / roto molded
wheel hubs / ABS / injection molded
The user loads both green and brown material into the upper compost bucket. Kitchen and yard scraps are used. Suction fit lid insures that moisture and heat are contained maintaining an optimal bacterial growth environment.
Photovoltaic cells capture the energy in sunlight. Energy is stored in a battery until enough is collected to make one full rotation. The unit rotates once or twice a week.
Material that has turned to soil and is fine enough will travel through the compost filter and down into the lower body collection area. The removable door allows shovel access to soil.
The inner steel compost aeration filter helps keep oxygen in the mix for faster decomposition. It also breaks up the compost as it is turned. preventing the compost turning into a ball and just sliding back and forth when tumbled.
Curved photovoltaic surfaces are not optimal power generation but in this application only a small amount of energy is need to be collected to make one full rotation
The auto-deploy kickstand automatically retracts when the user picks the bin up . This allows for easy transportation of the bin around the yard.
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