한국항공우주학회지 (Journal of the Korean Society for Aeronautical & Space Sciences)

  • 제43권7호
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  • Pages.626-634
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  • 2015
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  • 1225-1348(pISSN)
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  • 2287-6871(eISSN)
한국항공우주학회 (The Korean Society for Aeronautical and Space Sciences)
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이산화탄소의 적외선 스펙트럼 예측을 위한 복사 데이터베이스 활용

Application of Radiation Databases for the Prediction of CO2 Infrared Spectrum

  • Nam, Hyun Jae (Department of Aerospace Engineering, Korea Advanced Institute of Science and Technology) ;
  • Kwon, Oh Joon (Department of Aerospace Engineering, Korea Advanced Institute of Science and Technology)
  • 투고 : 2014.11.21
  • 심사 : 2015.06.16
  • 발행 : 2015.07.01
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초록

본 연구에서는 이산화탄소의 적외선 스펙트럼을 예측하였다. 이를 위해 필요한 흡수계수는 line-by-line 기법을 적용해 계산하였으며 계산에 필요한 분광상수들은 복사 데이터베이스인 HITEMP2010과 CDSD-4000 데이터베이스를 활용하였다. 이산화탄소가 대표적으로 방출하는 2.7과 4.3, $15{\mu}m$ 밴드 영역에 대해 예측을 수행하였으며 타 연구자가 실험을 통해서 획득한 스펙트럼과 비교하여 결과를 검증하였다. 이산화탄소의 적외선 스펙트럼 예측 결과, 전반적으로 HITEMP2010 기반의 예측값과 CDSD-4000 기반의 예측값이 실험과 잘 일치하는 것을 확인하였으나 $4.3{\mu}m$ 밴드 영역에서는 CDSD-4000 기반의 예측값이 HITEMP2010 기반의 예측값보다 실험값과 더 잘 일치하는 것을 확인하였다.

In the present study, numerical predictions of infrared spectra for $CO_2$ molecule were conducted. Absorption coefficients of $CO_2$ which are required for simulating the spectra, were calculated by using a line-by-line method and by adopting spectroscopic parameters from the radiation databases, HITEMP2010 and CDSD-4000. Simulations were made in the 2.7, 4.3, and $15{\mu}m$ band regions, and the results were compared with the measurements of other researchers. It was found that the calculated results are well matched with the various measurements. However, in the $4.3{\mu}m$ band region, the CDSD-4000 based calculation yields a better fit to the measurement than the HITEMP2010 based calculation does.

키워드

참고문헌

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