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Sugar Brick: Charcoal Briquette Compactor

Sugar Brick: Charcoal Briquette Compactor. Team Blue B October 7, 2004. Ratchet press model – Iteration 1. Locking Mechanism Incremental Application of Force Foot or Hand Operated Batch of 5 Briquettes Compact Size. Compression forces. Mechanical Advantage 10:1 Hand = 100N 6 psi/brick

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Sugar Brick: Charcoal Briquette Compactor

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  1. Sugar Brick:Charcoal Briquette Compactor Team Blue B October 7, 2004

  2. Ratchet press model – Iteration 1 • Locking Mechanism • Incremental Application of Force • Foot or Hand Operated • Batch of 5 Briquettes • Compact Size

  3. Compression forces • Mechanical Advantage 10:1 • Hand = 100N • 6 psi/brick • ~2 x current capability • Foot = 400N • 25 psi/brick • ~5 x current capability

  4. Customization • Local materials & available technologies • Variation options • Base configuration • Batch size • Briquette shape & size • Lever arm

  5. Questions ?

  6. Competing technologies • Screw extrusion machines • Japan & Europe • Pelletizer • Rollers force biomass into small holes in thick steel dies Screw Extrusion Press with Heated Die

  7. Competing technologies • Reciprocating ram/piston press • US & Europe • Hydraulic piston press D i e g o C a t t a n e o - U n i v e r s i t y o f B r e s c i a

  8. 22” Lever press model – Tray • Removable tray with briquette molds • Ease of briquette removal • Features • End grooves for handling on upper and lower surfaces • Shorter than table length • Tray slides into compactor

  9. Ratchet press calculations • Hand • Apply 10 kg of force • Fg = mg = 10 kg * 10 m/s2 = 100 N • FT = 100 N * 10 = 1000 N (mechanical advantage) • FT /chamber = 200 N • Achamber = π * (1.5 in * 0.0254 m/in)2 = 0.0046 m2 • Pbrick = 200N / 0.0046 m2 = 44 kN/ m2 = 6 psi • Foot • Fg = mg = 40 kg * 10 m/s2 = 400 N • FT = 400 N * 10 = 4000 N (mechanical advantage) • FT /chamber = 800 N • Achamber = π * (1.5 in * 0.0254 m/in)2 = 0.0046 m2 • Pbrick = 800N / 0.0046 m2 = 175 kN/ m2 = 25 psi

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