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논문 기본 정보

자료유형
학술저널
저자정보
신미수 (충남대학교) 박민정 (충남대학교) 장동순 (충남대학교)
저널정보
한국폐기물자원순환학회 한국폐기물자원순환학회지 한국폐기물자원순환학회지 제33권 제6호
발행연도
2016.1
수록면
606 - 612 (7page)

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The synthetic gas obtained from the gasification of waste material becomes more important not only in waste reductionbut also for the generation of clean energy directly applicable to industrial combustors firing LNG fuel without any majormodification of the boiler system. Therefore, in this study, a systematic calculation was made for the turbulent reactioninside a conventional LNG combustor to determine the temperature distribution and fluid flow field. By doing this, thesyngas obtained from gasification of combustible waste could be evaluated for the potential applicability of syngas as asubstitute for LNG fuel in the industrial field. In this calculation, the ratio of the syngas amount to the LNG amountwas fixed. That is, based on calorific value, 70% of the fuel was syngas and 30% was LNG. Since the calorific valueof the syngas was different from that of LNG with a high energy density, the different volumetric flow rate was expectedto give rise to a visible flow field change together with the local velocity. Thus, in this study, the swirl intensity and theinlet nozzle diameter were varied carefully in order to resolve the flow field and turbulence effects on the reactioncharacteristics of the co-burning flame. First of all, the calculation result of pure LNG combustion was made successfullyas a reference and for evaluation of the code implementation. The results obtained from the numerical simulation of theburning of syngas in the LNG boiler could duplicate the combustion feature almost similar to that of 100% LNG fuelsby changing the injection method of the syngas without any major change of the boiler system. The results suggestedthe high potential of syngas as an economic substitute for conventional LNG fuel.

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