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Team Red A The Mega Spreader Concept

Team Red A The Mega Spreader Concept. Sketch Model Review Presentation October 5, 2005. Problem Definition: Uneven Distribution of Grain. Air pockets, poor air flow Spoilage Greater risk of dust explosion Less bin capacity Uneven weight distribution Poor packing. Maximum Density.

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Team Red A The Mega Spreader Concept

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  1. Team Red AThe Mega Spreader Concept Sketch Model Review Presentation October 5, 2005

  2. Problem Definition: Uneven Distribution of Grain • Air pockets, poor air flow • Spoilage • Greater risk of dust explosion • Less bin capacity • Uneven weight distribution • Poor packing Maximum Density Uneven Weight Distribution Poor Packing Source: http://www.cdc.gov/nasd/docs/d000701-d000800/d000759/d000759.html

  3. The Market and Customer Annual corn production in the U.S.: • $15.1 billion sales • 72.7 million harvested acres Corn farmers: • Over 400,000 U.S. farms, each with 3 grain bins • Approximately 1.2 million corn grain bins Source: http://www.epa.gov/agriculture/ag101/cropmajor.html

  4. Design Requirements Functional Requirement: • Distribute grain evenly Dimensions: • 2.5’ – 3’ grain bin loading diameter • 24’ – 48’ grain bin diameter Additional Customer Requirements: • Will not spark and ignite dust • Easily accessible • Externally controlled • Resistant to abrasion

  5. Our Concept: Mega Spreader • Powered by flow rate • Rotating mechanism with directional blades

  6. Sketch Model • Optimal blade angle – 15 degrees • For 2.5’ fall, blade radius : spread radius = 1:14 • Design ultimately must spread 24’ from center

  7. Next Steps • Test full flow of actual grain • Build grain-powered, larger scale mock-up

  8. Sources • Keith Dittrich, Personal Interview Grain Farmer • U.S. Environmental Protection Agency “Major Crops Grown in the U.S.” http://www.epa.gov/agriculture/ag101/cropmajor.html 2000. • National Agriculture Safety Database “Silo Fires: Prevention and Control Conventional and Sealed Silos” http://www.cdc.gov/nasd/docs/d000701-d000800/d000759/d000759.html 04/2002.

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