return compost bin

27

Upload: daniel-schaumann

Post on 14-Mar-2016

220 views

Category:

Documents


1 download

DESCRIPTION

This is a compost bin i designed for the international housewares competiton last year and just finished.

TRANSCRIPT

Page 1: reTurn Compost Bin
Page 2: reTurn Compost Bin
Page 3: reTurn Compost Bin
Page 4: reTurn Compost Bin
Page 5: reTurn Compost Bin
Page 6: reTurn Compost Bin

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

Page 7: reTurn Compost Bin
Page 8: reTurn Compost Bin

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

Page 9: reTurn Compost Bin
Page 10: reTurn Compost Bin
Page 11: reTurn Compost Bin
Page 12: reTurn Compost Bin
Page 13: reTurn Compost Bin
Page 14: reTurn Compost Bin
Page 15: reTurn Compost Bin
Page 16: reTurn Compost Bin
Page 17: reTurn Compost Bin
Page 18: reTurn Compost Bin

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

Page 19: reTurn Compost Bin

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.

Page 20: reTurn Compost Bin
Page 21: reTurn Compost Bin
Page 22: reTurn Compost Bin
Page 23: reTurn Compost Bin

reTurnSOLAR POWERED, SELF-TURNING COMPOST BIN

Page 24: reTurn 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

Page 25: reTurn Compost Bin

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.

Page 26: reTurn Compost Bin

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.

Page 27: reTurn Compost Bin