• Journal of the Korea Academia-Industrial cooperation Society
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• v.8 no.1
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• pp.1-9
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• 2007

The performance of the small scale cyclone incinerate system (100kg/hr) to process the sewage sludge containing high moisture is evaluated. The incinerate system design is based on properties of the domestic sewage sludge. The combustion characteristics of the incinerate system is tested and analyzed with the various operation conditions of the moisture level, the sludge feed rate and the auxiliary fuel feed rate. The pressure loss of the whole system is appeared relatively small of 700mmAq under the normal operating condition and the temperature distribution of the incinerator internal combustion is maintained less than 1000C. Auxiliary fuel of 4.7 1/hr is required to incinerate 100kg sludge which include 87% moisture. Because the inside temperature of the incinerator is maintained less than $1000^{\circ}C$, it is predicted that the most NOx measured is produced not from the heat during the combustion process but from the oxidation of the N ingredient in the sludge. From the component analysis of ash, the organic matter is not entirely detected. Accordingly, it is estimated that the complete combustion has been accomplished in the incinerator.

• Journal of Advanced Marine Engineering and Technology
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• v.35 no.6
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• pp.773-778
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• 2011

The International Maritime Organization(IMO) could try to adopt more severe amendment to prevent any air pollution from various waste materials by marine incinerator. This study is to analyse the performance improvement through Ansys CFD about new invented system which has three flue-gas discharge channels and sub-ejector installed in the dischage channel in order to evacuate flue-gas well from the combustion chamber. The results showed that the discharge temperature of flue-gas was below the regulated value of IMO by the multi-channels, and the sub-ejector system installed in the discharge channel was highly effective one to improve the flue-gas discharge ability.

• Journal of the Korea Organic Resources Recycling Association
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• v.20 no.1
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• pp.23-30
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• 2012

In the state that re-evaluation of calculating optimum amount of incineration in the future is needed, as considering the amount of waste, increase of heat value and change in floating population in each area in city B, the purpose of this research was to predict optimum available capacity in incineration plant and to study alternatives for the amount of disposal in each incineration plant based on the available capacity that was predicted. As a result of predicting the change in population based on progress of population in city B in the past, it is expected that an overall population is decreasing, but in some areas, population is concentrated due to increased apartment complexes, showing similar figures as the present. Moreover, when predicting the amount of waste through forecasting population, it is considered that the amount of waste by decreased population is also decreasing. However, the amount of combustible component among a total amount of waste is expected to increase, so it is predicted that the amount of incineration and combustible component will be reasonable except D incineration plant, Therefore, D incinerating plant showed 72.7% of rate of utilization of incineration facility compared to 59.1% of national rate. However, if shortfall of waste in the future can be used wisely in other areas, the use of renewable energy using burner useless heat can be maximized.

• Proceedings of the Korea Society for Energy Engineering kosee Conference
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• 2003.05a
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• pp.557-562
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• 2003

산업체 소각로의 고온 배가스에는 소각물질의 특성에 따라 다양한 성분의 오염물질이 함유되어 있다. 고온 소각배가스의 후처리를 위하여 배가스냉각용 열교환기가 사용되고 있다. 그러나, 소각로 열교환기의 입구와 전열면에 파울링 현상이 발생하여 열교환기의 전열성능이 감소하고 또한 심한 경우, 유로면적이 줄어들어 통풍저항이 증대된다.(중략)

• Journal of the Korean Institute of Gas
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• v.11 no.4
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• pp.7-11
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• 2007

There has been a report of fire and explosion accident in regenerated thermal oxidizer (RTO). This paper was to investigate accident causes of RTO in the resin re-treatment process. The experiments carried out physicochemical properties and thermal stability analyses by using flash point tester, flammable range apparatus, autoignition tester, GC/MSD and thermal screening unit. We inferred causes of fire and explosion from the regenerated thermal oxidizer to prevent an accident of its process.

• Journal of the Korean Institute of Intelligent Systems
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• v.7 no.2
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• pp.43-50
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• 1997

Refuse incineration plant operations involve many kinds of uncertain factors, such as the variable physical properties of refuse as fuel and the complexity of the burning phenomenon. This makes it very dificult to apply conventional control methods to the combustion control of the refuse. So most of the refuse incineration plant are operated by operators. In this paper, an multi-variable fuzzy model predictive controller is proposed for the combustion control of the re:fuse. Adaptive network based fuzzy inference system is used for modeling of the refuse incineration plant and multi-variable fuzzy model predictive controller is designed based on the identified fuzzy model. And computer simulation was carried out to evaluate performance of the proposed controller.

• Journal of the Korean Institute of Gas
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• v.16 no.4
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• pp.52-58
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• 2012

Recently, waste gas incineration is increasing due to strong environmental regulatory system in Korea. These incinerating facilities are usually connected with the top of the storage tank through pipeline and incinerate off gas with the flame. Therefore, the flame originated from these facilities is likely to move back into pipeline and might cause an explosion of the storage tank. Accordingly, the purpose of this study is to suggest the preventive measures and the way to improve the safety of these incineration systems through the cause analysis of a major industrial accident occurred in a acrylic acid manufacturing process in Korea. As a result of the study, the preventive measures are suggested as follows. (1) Air or inert gas inflow facilities should be well designed to dilute flammable gases into air or inert gas sufficiently before the blower is restarted in order to prevent the explosion (2) It is needed for the detonation-type flame arresters to be installed on the top of the storage tanks. (3) In case of using the deflagration-type flame arresters, it is necessary to install a rupture disk before the arresters, or blow off the flame outside tanks by connecting the tank top and the incinerator with hood-type pipe. (4) TDR should be installed to be restarted automatically after the momentary power failure.

• Proceedings of the Korean Nuclear Society Conference
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• 1996.05c
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• pp.526-531
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• 1996

국내의 방사성 동위원소 (Radioisotope; RI) 사용기관에서 발생, 수거되어 현재 원자력연구소 저장고 내에 보관중인 폐기물중 가연분을 대상으로 소각실증실험을 수행하였다. 폐기물 발생일을 기준하여 최소 2년이상이 경과한 RI 폐기물을 소각한 결과 폐기물의 부피와 무게를 각각 약 1/250, 1/30로 줄일 수 있었으며, 소각운전중 배출기체의 농도는 환경관련법상의 배출허용기준치 이하, 배출방사선량은 검출기의 측정한계 이하였다. 방사성동위원소 추적자로 I-131 ($Na^{131}$ I형태, 총 2mCi)을 사용한 모의 폐기물을 소각한 결과 대부분의 방사능은 소각재에 잔존하기 보다는 휘발되어 배기체와 함께 거동하며 주로 포대여과기의 여과층에서 잡히는 것으로 나타났다.

• Proceedings of the Korea Air Pollution Research Association Conference
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• 2001.11a
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• pp.352-353
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• 2001

최근 고속도로의 연장과 고속도로 이용객의 증가에 따라 휴게소 및 고속도로에서 발생하는 폐기물의 양이 점차 증가하고 있다. 고속도로 휴게소의 지리적 여건상 발생하는 폐기물을 매립하기가 어려워 재활용 폐기물을 제외한 나머지는 전부 소각에 의존하고 있는 실정이다. 또한 고속도로 휴게소나 지사는 대부분 소형 소각로가 설치되어있어 오염방지시설이 제대로 설치되지 않고 가동되고 있다. 과거 소형 소각로는 대기오염 규제대상에서 제외되었지만 법률이 개정되어 25kg/hr 이상 소각시설이 대기오염물질 배출시설로 규정됨에 따라 기존의 소형소각시설도 대기오염방지를 위한 대기오염방지 시설을 설비하여야 한다. (중략)

• Proceedings of the KAIS Fall Conference
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• 2009.12a
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• pp.1046-1049
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• 2009

최근 화석에너지 고갈 문제와 폐기물의 지속적인 발생량 증가로 인해 폐기물을 이용한 열에너지 회수가 이슈화 되고 있다. 폐기물처리를 통한 에너지 회수 공정 가운데 소각이 가장 많이 이용되고 있으나 소각시 발생하는 대기오염 물질을 처리하기 위한 설계 및 설치비용에 많이 소요 된다. 본 연구에서는 화학공정 모사기인 Aspen plus를 이용해 소각공정 및 배가스 처리 공정모사를 실시하였다. 폐기물 소각 공정으로는 1 2차 연소실과 NO2를 환원하는 SNCR공정, 산성가스(HCl, SO2)를 제거하는 SDA공정, 입자상 물질을 처리 하는 bag filter공정을 모사하였다. 공정모사 결과 실제 산업폐기물 소각로의 처리효율과 일치 하였고 이를 바탕으로 동일한 공정 및 조건하에 소각로에 투입되는 폐기물의 조성비를 달리하여 공정 모사한 결과 오염물질의 배출량을 예측할 수 있었다. 이러한 오염물질 발생량 예측은 소각장의 폐기물 투입이 일정하지 않을 경우 조업 조건의 변경에 도움 뿐만아니라 공정개선의 효과적일 것으로 판단된다.