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A Report on Some Experiments with the Top-Lit Up Draft (TLUD) Stove

A Report on Some Experiments with the Top-Lit Up Draft (TLUD) Stove. Dale Andreatta, Ph.D., P.E. The goal was to take an interesting stove design and apply more science than had previously been applied. . Advantage #1. Simple design Non-critical dimensions No fan

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A Report on Some Experiments with the Top-Lit Up Draft (TLUD) Stove

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  1. A Report on Some Experiments with the Top-Lit Up Draft (TLUD) Stove • Dale Andreatta, Ph.D., P.E.

  2. The goal was to take an interesting stove design and apply more science than had previously been applied.

  3. Advantage #1 • Simple design • Non-critical dimensions • No fan • The “stove” is not a specific design but a collection of ideas that can be made in a number of ways.

  4. Advantage #2 • Super clean burning • 5 mg Particulate Matter per liter • 0.5 g of CO per liter • Cleaner than a fan powered stove

  5. Advantage #3 • Easy to control • Burns for a long time with little or no user intervention (with the right fuel)

  6. Advantage #4 • Can be powerful (short time to boil) • Can be reasonably efficient • Exit temperature is generally 600-800 C

  7. Disadvantages • Fuel-sensitive (a fan would help a lot in this respect) • Sensitive to how the fuel is packed

  8. The Report Contains • Detailed description of the stove, its design, construction, and operation.

  9. The Report Contains • Detailed description of tests done with a variety of fuels.

  10. The Report Contains • What happens when primary air is controlled, for a variety of fuels for a variety of flow rates.

  11. As a function of primary air flow • Measure fuel burning rate • Measure flame height • Calculate air to fuel ratio • Calculate equivalence ratio

  12. The Report Contains • A rough chemical analysis of the pyrolysis process.

  13. The Report Contains • A rudimentary mathematical model of the stove.

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