Journal of the Society of Naval Architects of Korea (대한조선학회논문집)

The Society of Naval Architects of Korea (대한조선학회)
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A Study on Prediction of Surface Temperature and Reduction of Infrared Emission from a Naval Ship by Considering Emissivity of Funnel in the Mid-Latitude Meterological Conditions

중위도 기상조건에서 함정의 연돌 방사율을 고려한 적외선 복사량 예측 및 감소방안 연구

  • Gil, Tae-Jun (Department of Mechanical Engineering, Graduate School of Chung-Ang University) ;
  • Choi, Jun-Hyuk (Department of Mechanical Engineering, Graduate School of Chung-Ang.University) ;
  • Cho, Yong-Jin (Maritime & Ocean Engineering Research institute (MOERI)) ;
  • Kim, Tae-Kuk (Department of Mechanical Engineering, Chung-Ang University)
  • 길태준 (중앙대학교 대학원 기계공학부) ;
  • 최준혁 (중앙대학교 대학원 기계공학부) ;
  • 조용진 (한국해양연구원 해양운송안전연구본부) ;
  • 김태국 (중앙대학교 공과대학 기계공학부)
  • Published : 2007.02.20
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Abstract

This study is focused on developing a software that predicts the temperature distribution and infrared Emission from 30 objects considering the solar radiation through the atmosphere. The solar radiation through the atmosphere is modeled by using the well-known LOWTRAN7 code. Surface temperature information is essential for generating the infrared scene of the object. Predictions of the transient surface temperature and the infrared emission from a naval ship by using the software developed here show fairly good results by representing the typical temperature and emitted radiance distributions expected for the naval ship considered in mid latitude. Emissivity of each material is appeared to be an important parameter for recognizing the target in Infrared band region. The numerical results also show that the low emissivity surface on the heat source can be helpful in reducing the IR image contrast as compared to the background sea.

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References

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