Abstract
In order to examine possibility of energy recycling of waste PET-bottles, a commercial LPG-fueled ceramic burner has first been improved to burn PET-resin powder as an auxiliary fuel. In this paper, under the fixed conditions of a total heat input of 11.6kW and overall equivalence ratio of 0.8,combustion characteristics of the improved burner are experimentally investigated both in the open atmosphere and in the model furnace by varying a mean diameter of PET-powder. According to the results obtained in the open atmosphere burner operation, it is found that the improved burner leaves an appreciable amount of PET-powder unburnt, and that the unburnt rate increases in proportional to the mean diameter. In the in-furnace operation, on the other hand, no PET-powder is detected after the operation under a replacement rate of 15%, and the improved burner exhibits fine combustion properties comparable to the original LPG-fueled ceramic burner.
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