• Title/Summary/Keyword: Waste Incinerator

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Dual-Type Thermoelectic Generation System for a Reusing of Middle Class Waste-Heat in Incinerator (소각로 중온 폐열 재활용 위한 복식형 열전발전시스템 개발)

  • Park, Su-Dong;Kim, Bong-Sea;Oh, Min-Wook;Min, Bok-Kee;Lee, Hee-Woong
    • 한국신재생에너지학회:학술대회논문집
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    • 2009.06a
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    • pp.798-801
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    • 2009
  • 소각로를 포함한 다양한 산업설비의 배폐열은 열병합 등의 다양한 방법을 통해 재활용되고 있으나 에너지의 효율적 사용과 편의성을 고려할 때, 단순한 온수공급 등의 방법보다는 전력으로서의 재활용이 매우 필요하다. 특히 재활용이 어려운 $400^{\circ}C$이내의 중저온급 폐열원을 발전할 수 있는 유력한 방안으로 열전발전기술이 최근 부각되고 있다. 열전발전은 발전모듈의 변환효율이 7~10%이고, 시스템 효율은 5%내외로 증기발전에 비해서는 낮지만 기계적 가동부분이 없어 고장발생이 적고 기동정지가 용이하며 열이 있으면 바로 발전이 가능한 차세대 친환경 발전기술이다. 본 연구에서는 현재까지 시도, 개발되지 못한 $100^{\circ}C$에서 $400^{\circ}C$내외 온도영역인 중저온급 소각폐열 회수를 위한 목적으로 중온용 열전발전소재 및 모듈과 저온과 중온에 각기 대응하여 폐열발전의 효용성을 높인 복식열전발전시스템을 개발 중에 있다. 본 고에서는 현재까지 진행된 일부 연구내용들을 소개하고자 하였다.

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CHARACTERISTICS AND STRENGTH EVALUATION OF THE MIXED MATERIAL OF FLY ASH FROM MUNICIPAL SOLID WASTE INCINERATOR AND THE RECYCLED POLYPROPYLENE

  • Park, Sang-Min;Kim, Hwan-Gi
    • Environmental Engineering Research
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    • v.11 no.5
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    • pp.257-265
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    • 2006
  • The purpose of research is to mix the fly ash from municipal solid waste incinerator in the recycled Polypropylene and to recycle. The specimen was produced by mixing 20 wt.% of MSWI fly ash at maximum in the recycled Polypropylene and the particle size analyzer, DSC, TGA, SEM and UTM instruments were used to analyze the physical chemical properties of the specimen. As a result of measurement, the average particle size of MSWI fly ash was $18.08\;{\mu}m$. In TGA analysis, the temperature of specimen S-5 at 50% of weight decrease was risen by $7^{\circ}C$ higher than specimen S-1. In UTM measurement, specimen S-2 showed the maximum strength for tensile strength and specimen S-3 showed the maximum strength for flexural strength. But, impact strength was decreased according to the increasing proportion of MSWI fly ash. In conclusion, when the proper amount of MSWI fly ash was added to the recycled Polypropylene, thermal endurance, tensile strength and flexural strength could be increased, but impact strength was decreased.

Optimal Operation of Medium Sized Incinerator to Minimize PCDD/Fs Emission (중형 소각로 다이옥신 배출 저감을 위한 최적 운전인자)

  • Yoo, Dong-Joon;Koo, Ja-Kong;Jeong, Seung-Ik
    • Journal of the Korea Organic Resources Recycling Association
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    • v.21 no.4
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    • pp.44-49
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    • 2013
  • An establishment of dioxin-reduction operating skill for medium sized incineration facility is urgently needed in Korea with nearly 90% of medium sized incineration. Using lattice stoker incineration processing the capacity of 20 tons industrial general waste per day, similar properties of the household waste, dioxin-reduction is derived in optimum operating condition and parameters. As a result, CO haunting which is the minimization of frequency is found as the major parameter to minimize dioxin.

Performance Analysis on the Ejector System in Flue-gas Discharge Channel of Marine Incinerator (소각기의 배기가스 유로에 이젝터를 적용한 시스템의 성능 분석)

  • Yun, Sang-Kook;Chang, Ho-Gil
    • 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.

Study on the Incinerating Treatment of Rice Hull Produced by RPC and Its Heat Utilization (미곡종합처리장 발생 왕겨폐기물의 소각처리 및 연소열의 활용에 관한 연구)

  • 진영덕;장동일;장동순;김만수;장홍희
    • Journal of Biosystems Engineering
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    • v.20 no.3
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    • pp.250-261
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    • 1995
  • This study has been performed to develop an agricultural waste incinerator to combust the rice hull originated from RPC with the typical disposal treatment capacity of 30kg/h and to test performance of the developed incinerator. Experimental results are summarized as following. 1. The optimum feed rate of rice hull of the incinerator is 30kg/h with air ratio of 1.5. 2. The contents of $SO_2$ in flue gas is maximum 18ppm(when rice hull feed rate was 20kg/h and air ratio of 1.5), minimum 7ppm(when rice hull feed rate was 30kg/h and air ratio of 1.5) and average 11ppm. So there is no environmental pollution problem for the incinerating treatment of rice hull of the RPC. 3. The temperature of water of heat exchanger are $53^{circ} C$ and $62^{circ} C$ with water flow rate $3{ell}/min$ and $1.5{ell}/min$ at the optimum combustion condition, respectively. 4. According to theoretical energy calculation, the energy from rice hull combustion may be amounted as much as 80%~190% of energy supplied by kerosene required by RPC.

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