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The Cooking D evice O f M aximum E fficiency concept

The Cooking D evice O f M aximum E fficiency concept. Shell Company EDSGN 100, Sec. 017 Still Eagles Submitted to Andy Lau December, 14 2009. Table of Contents. Team Description Mission Statement Research Analysis Our Product. Still Eagles. Chris Jackson cej5057@psu.edu

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The Cooking D evice O f M aximum E fficiency concept

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  1. The Cooking Device Of Maximum Efficiencyconcept Shell Company EDSGN 100, Sec. 017 Still Eagles Submitted to Andy Lau December, 14 2009

  2. Table of Contents • Team Description • Mission Statement • Research • Analysis • Our Product

  3. Still Eagles • Chris Jackson • cej5057@psu.edu • Trevor Sherts • tcs5103@psu.edu • Dave Hoysan • dph5087@psu.edu • Michael Reed • mcr5138@psu.edu

  4. Mission Statement • Design a device which can be locally manufactured that fully utilizes fuel energy, wastes minimal heat, and reduces harmful smoke for safe indoor cooking.

  5. Research (Solar Cooking) • CONS • High installation cost • Limited availability • Obligated to cook outside • Cooking is subject to weather • PROS • Capturing and converting light to heat • Uses lenses and mirrors and a tracking system • Renewable and sustainable energy source • No Smoke • No Pollution

  6. Research (Biomass Cooking) • Average annual income in Kenya: $360 • Biomass fuels • For cooking and heating, 45.3% of all energy consumption is used in the burning of wood for these needs • Breakdown of overall fuels used in energy consumption: • Non-Traditional – 28.4% • Wood – 61.3% • Charcoal – 7.6% • Dung/other – 2.7%  • Present Cookers: • Traditional Kenyan Stoves • Channel-type stoves • Stove-less fire pits

  7. Efficiency • Well-insulated, melt-resistant walls • Pot should fit over the heat source, but with easy access • A grate below the fuel for increased airflow • Space in between the pot and the fuel bed • Cylindrical Shape • Use of metal to radiate heat • Use wide pots with large diameters

  8. Research (Stoves) • Jiko • Reduces fuel use by about 50% • Locally manufactured • Easily made with scraps • 35-75 Kenyan Shillings/$2.00-$3.00 • 3.6kg • 30cmx50cm in diameter • Ceramics with metal shell • Lasts about 30 months • Envirofit • Reduces emissions by as much as 80%, use up to 60% less fuel and reduce cooking cycle time by up to 50% • $12.00-$50.00 • 10.4kg • 29cmx30cmx29cm • Plastic shell with alloy interior • 5-year warranty

  9. Research (Fuel Alternatives) • ½ the World’s population uses coal and biomass fuels • The sun’s rays • Petroleum-based fossil fuels • Ethanol • Biodiesel

  10. Analysis • Solar Cooking proved too unpractical • Weather permitting • Has to be outdoors • Expensive • Biomass cooking provides residents with an effective and inexpensive alternative • Locally produced • Versatile fuel • Energy efficient

  11. The DOME

  12. Cooking Concept Details • Inner sheet metal shell reflects radiation inward reducing heat loss. • Dome shape prevents convective heat loss and allows pot to be completely surrounded by hot air to cook quickly and waste minimal energy. 27” Diameter Base, 21” Height 15” Diameter Top, 6” Radius Fuel Opening

  13. Features • Cooking Surface • Grill like platform extended into dome • Provides versatility – different sized pots • Easily Cleaned • Exhaust System • Piping with rough ceramic insert to filter smoke particulate 15” Diameter x 12”, 1.5” Overhang 3” Diameter x 7” Length

  14. Features • Elevated Fuel Platform • Allows air to flow around and under the fire to promote complete combustion • Tight Fitting Lid • Allows hot air to surround cook pot without escaping from system 17” x 10” x 2” 18” diameter x 2.5”

  15. The DOME Front Back Sketch

  16. Materials / Cost • Metal piping • Exhaust system • $.079 per foot • Ceramics • Smoke filter plate • $3-$4 • Sheet metal • Inner shell • Lid • $1.67 per sq. foot • Insulation • Secondary shell • $0.15 per sq. foot • Metal grating • Cooking platform/cage • Fuel platform • $2-$3

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