• Journal of the KSME
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• v.52 no.3
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• pp.47-50
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• 2012

이 글에서는 가연성 폐기물을 이용한 고형연료 제품의 특성과 폐기물고형연료, 유연탄 흔소 유동층 보일러의 구성 및 익산 열병합발전설비 적용사례 등을 소개하고 새로운 신재생에너지 사업으로 부각되는 폐기물고형연료 열병합 발전설비에 대한 이해를 돕고자 한다.

• Proceedings of the Safety Management and Science Conference
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• 2009.04a
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• pp.17-25
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• 2009

세계의 모든 나라가 화석연료를 대체하는 태양광, 풍력 등의 그린에너지 기술개발에 주력하고 있으며, 한편으로는 에너지의 효율제고 및 재생을 위하여 폐기물로부터의 자원순환을 이룩하는 폐기에너지 회수에도 많은 노력을 기울이고 있다. 그 하나의 방편이 버려지는 쓰레기에서 에너지를 회수하는 고형재생연료인 RDF(생활폐기물 고형연료 제품, Refuse Derived Fuel) 생산이다. 우리나라에서는 유일하게 강원도 원주시에서 하루 80톤을 생산하고 있으며 아직은 기술도입 초기단계에 있는 가연성폐기물의 연료화 기술이다. RDF의 특성은 불연성 성분이 제거된 일반 가연물을 분쇄하여 압출성형 가공한 펠릿형상의 고체연료로서의 열적 특성이 우수하나 화재안전 측면에서는 제조 및 취급공정에서의 일반적인 가연물 화재위험성을 가지고 있고, 저장과정에서는 축열발열에 의한 자연발화 위험성이 상존하며, 저장형태, 특히 사이로의 경우 구조특성으로 인하여 화재진압도 쉽지않다. 본 논문에서는 일본의 RDF 화재사례를 중심으로 그 화재 위험 특성과 안전대책을 고찰하고자 한다.

• Environmental engineer
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• s.325
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• pp.32-33
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• 2013

• Proceedings of the KAIS Fall Conference
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• 2009.05a
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• pp.867-868
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• 2009

본 연구는 사업장에서 발생하는 폐기물의 고형연료 제조에 관한 것이다. 고형연료제품 생산을 위해 대부분의 제조 회사는 발열량이 높고, 성형하기가 쉬운 필름류 플라스틱을 많이 사용하고 있다. 이에 반해 본 연구에서는 폐합성수지, 폐지, 폐목재, 폐타이어 등 다양한 폐기물을 이용하여 고형연료 제조 가능성을 확인해 보았다.

• Journal of the Korea Organic Resources Recycling Association
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• v.30 no.4
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• pp.101-108
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• 2022

This study analyzed the physicochemical properties and combustion characteristics of dry food waste to evaluate the possibility of using food waste as a solid refuse fuel (SRF). The characteristics of dry food waste as a fuel were analyzed by comparing the difference in properties with SRF, and the combustion characteristics after conversion into fuel were identified. Ultimate analysis, proximate analysis, calorific value analysis, and TGA analysis were conducted using two types of food waste and two types of SRF, and the following results were obtained. The moisture content and ash content of dry food waste were 1.7~10.0 wt.% and 7.8~11.7 wt.%, respectively, which satisfied the quality standards for SRF. The low calorific value of dry food waste was 4,000 ~ 4,720 kcal/kg, which was higher than the quality standard of 3,500 kcal/kg for SRF. As a result of TGA analysis of dry food waste, the combustion reaction started at about 200 ℃ and the highest burning rate was at about 500 ℃. After moisture evaporation between 100 and 200 ℃, initial volatile matter, carbon and residual volatile matter were released and burned between 200 and 500 ℃. Based on the high calorific value and low moisture and ash content of dry food waste, it is considered that it is possible to convert dry food waste into SRF through the application of efficient drying technology and strict quality standard inspection in the future.

• 재활용회보
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• s.1
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• pp.114-115
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• 2003

• Proceedings of the KAIS Fall Conference
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• 2009.12a
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• pp.675-677
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• 2009

사업장 폐기물의 발생량은 생활폐기물 발생량의 2배 이상에 달하며, 그 성상은 생활폐기물에 비해 불균일하다. 보다 적극적인 폐기물에너지 생산방안을 마련하기 위해서는 불균일 성상의 폐기물에 대한 추가적인 연구가 필요한 실정이다. 본 연구는 지역별 가연성폐기물의 발생비율에 따른 고형연료 제조를 통해 사업장 폐기물의 고형연료제품 생산을 위한 가능성 및 기초자료를 제시하고자 한다.

• Applied Chemistry for Engineering
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• v.26 no.6
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• pp.686-691
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• 2015

A basic research for utilizing solid refuse fuel (SRF) based on changing SRF properties (RDF, RPF) and types (pellet, fluff) is demonstrated. Physicochemical characteristics of SRF and also changes in thermal decomposition depending on combustion time and emission gas (NOx, CO, HCl, etc) concentration were investigated for applications to waste energy sources. In conclusion, RPF is easy to pelletize, and has better combustion efficiency, higher LHV, higher thermal reduction, and short combustion time because it is composed of plastic wastes homogeneously. Also, fluff type samples have better combustion efficiency, and short combustion time because it has wider exposed surface area for combustion. It can also save energy consumption for pelletizing.

• Journal of the Korean Applied Science and Technology
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• v.33 no.2
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• pp.264-270
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• 2016

This Study is to into fuel using a torrefation reaction to food waste. When the fuel of only food waste alone, fuel value is was performed at a ratio of sewage sludge constant attempts to prevent low. Mixing ratios of food waste and sewage sludge, 10:0, 8:2, 6:4, 5:5. Regardless mixing ratio, it was possible to confirm that decreases the moisture content of 10% or less at a reaction temperature of $240^{\circ}C$ or higher. As the ratio of the reaction temperature and the sewage sludge is high, the fixed carbon content is increased. It was measured at up to 36%(mixing ratios6:4, reaction temperature $270^{\circ}C$) from the initial 1.1%. From the reaction temperature $240^{\circ}C$ satisfied with 3000Kcal/Kg or more is a SRF criteria shows the calorific value. It was possible to obtain a heating value that is increased from the raw sample approximately sextuple. As reaction temperature is heightened, Van krevelen Diagram moved to the range of Lignite range. It was possible to obtain high fuel ratio and 5,500Kcal/kg or less of a combustility index as the sewage sludge mixing ratio becomes high. Increase the fixed carbon content, than those food waste alone solid fuel into and improved fuel costs, it is necessary to ensure that the quality of the fuel is improved.

• Journal of the Korean Applied Science and Technology
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• v.36 no.2
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• pp.560-571
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• 2019

In the study, used torrefaction method to make sample from organic waste of livestock manure for Biomass-solid refuse fuel feasibility study of torrefied materials. Fallen leaves and sawdust added in torrefaction methods with livestock manure, that additives were used to improve the lower calorific value of livestock manure. During the torrefaction experiment, the reaction temperature was varied from $200^{\circ}C$ to $260^{\circ}C$ and $20^{\circ}C$ to prepare a sample. The reaction time was divided into 15, 30 and 45min to determine the effect of the experimental conditions on the torrified products. The additives were mixed at a ratio of 9:1 and 8:2 (Cow manure: additive) relative to the livestock manure. Through this experiment, it was obtained 3,500 kcal/kg standard product of solid fuel produced in Korea and improved product was obtained by adding additives.