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Alternative burner design for residual oil and coal-water slurry utilizing hot charcoal bed?
Coal Water Slurry
We want to find an affordable way to combust two cheapest fuels -- residual oil and coal-water slurry for an outdoor boiler.
Unfortunately, these two cheap fuels require expensive special burners.
Oil burners usually consists of a pump to pressurize and a nozzle to atomize the oil. This design is expensive and require regular maintenance because of gunk deposit in the line and nozzle.
From grilling, I found grease dripped in the center of a charcoal fire immediately burst into flames, without much smoke or smell of unburnt oil.
Can we use a pot of burning charcoal as oil burner, dripping oil onto charcoal to make it burn?
Is it an efficient way of burning residual oil?
What about coal water slurry? Can we drip slurry onto charcoal?
Where can we buy residual oil and coal water slurry for experiment?
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