• 제목/요약/키워드: Superadiabatic combustion

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초단열 연소현상을 이용한 산업용 건조기 개발에 관한 연구 (A Study on the Development of Industrial Dryer using the Superadiabatic Combustion Phenomena)

  • 채재우;황재원;한정희;황화자;전정규;한정옥;이중성;유현석;이현찬
    • 대한기계학회:학술대회논문집
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    • 대한기계학회 2000년도 춘계학술대회논문집B
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    • pp.168-174
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    • 2000
  • This paper illustrates the validity of reciprocating type superadiabatic combustor as a industrial applicable dryer. After the investigations of inner and surface temperature distributions of combustor various with air-fuel(methane) ratio, mixture flow rate and reciprocating time, this combustor can be applied in industrial dryer at certain operating conditions. The results are as follows. 1) Higher equilivalence ratio emits more radiation heat flux at the censer chamber 2) Higher mixture flow rate makes more uniform temperature distribution. however, due to the heat transfer from censer chamber to porous media, the radiation beat flux is worse. 3) Longer reciprocating time emit more radiation heat flux. however, this case also makes temperature distribution wide

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다공성물질을 이용한 초단열 연소장치에서의 연소특성의 실험적 연구 (An Experimental Study on the Combustion Characteristics with Superadiabatic Combustor in Porous Media)

  • 채재우;;심민섭;정성찬
    • 설비공학논문집
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    • 제6권4호
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    • pp.399-405
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    • 1994
  • Beacuse of the energy resources exhaustion, the aggravating environmental air pollution and the smoke phenomena etc., the importance of clean gas fuel compared with liquid fuel is highly considered in recent years. The combustion system which consists of porous media is actively studied as a new method for solving above problems. Therefore, excess enthalpy combustion using porous media was interested by many researchers and investigated through numerical and experimental analysis. In this study, the simplified combustor has the unique combustion characteristics of mixture gas preheated effect using radiative and convective heat energy by changing the flow passage of unburned gas with solenoid valves and has the intensive excess enthalpy phenomena As the result of according to reduce equivalence ratio, flame temperature was remarkably higher than adiabatic flame temperature. This show the ability of super-lean combustion.

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