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Grain Elevator Combustion Reaction Model Diagram

Learn about a combustion reaction using a candle and a grain elevator model. Discover the activation energy, surface area effect, and potential energy diagram of the process. Incident reference: Explosion of DeBruce Grain Elevator, Wichita, Kansas.

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Grain Elevator Combustion Reaction Model Diagram

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  1. GRAIN ELEVATOR MODEL DIAGRAM Paint can Candle Funnel Lycopodium Tubing Air source

  2. CHEMISTRY • Reaction: (C6H10O5)n(s) + O2(g)  CO2(g) + H2O (g) • This is a combustion reaction. • The candle provides the “activation energy”—the energy required to get a reaction going/started. • Increased surface area creates a chain reaction  EXPLOSION (food dust).

  3. Potential Energy Diagram ENERGY  Ea reactants H products REACTION PROGRESS 

  4. Explosion of DeBruceGrain ElevatorWichita, Kansas8 June 1998

  5. Source: US Department of Laborwww.osha.gov/as/opa/foia/debruce-cover1.jpg

  6. (kJ) 225 kJ – 75 kJ = 150 kJ

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