Abstract
Energy recycling of recycled plastic-resin is focused in this investigation. Polyethylene terephthalate resin powder is employed as an auxiliary fuel, whereas high temperature oxidizing atmosphere is generated downstream of the annular burner. Temperature and O2 concentration fields downstream of the annular burner without PET-powder supply are first examined by varying the slit-jet and nozzle-jet velocities with both equivalence ratios kept constant at 1.0. PET-powder is then introduced into the high temperature oxidizing region by varying the slit-jet velocity, the nozzle-jet velocity and the median diameter of PET-powder. Variations of temperature and O2 concentration fields with PET-powder combustion are discussed qualitatively. According to the results, the dependency of the PET-powder unburnt rate on the properties of high temperature oxidizing atmosphere is examined.
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