Analysis of Gas Cooling System for IR Window

Hyun, Cheol-Bong; Goo, Nam-Seo; Kim, Jae-Young; Lee, Ho-Sung

doi:2012.15.2.130

J. KIMS Technol > Volume 15(2); 2012 > Article

Journal of the Korea Institute of Military Science and Technology 2012;15(2):130-137.
DOI: https://doi.org/10.9766/KIMST.2012.15.2.130

Analysis of Gas Cooling System for IR Window

Cheol-Bong Hyun, Nam-Seo Goo, Jae-Young Kim, Ho-Sung Lee

¹Konkuk University
²

적외선 윈도우용 가스식 냉각장치 해석 기법

현철봉, 구남서, 김재영, 이호성

¹건국대학교
²국방과학연구소

Abstract

In this paper, a post-analysis of cooling system for infrared(IR) window was performed based on heating experiment of IR window system. We applied the same experimental conditions to analysis, and then validated the analysis technique by comparing numerical and experimental results. For an analysis software, we used a professional heat/fluid analysis program and the numerical and experimental results were in fairly good agreement. We investigated the effect of thermal transfer between the frame and IR window and also a cooling efficiency between fluid and structure in order to determine the proper parameters for the analysis. In this study, 100 % thermal transfer between the frame and IR window and 30 % cooling efficiency between fluid and structure have been proposed, which can be used in the future conceptual design and analysis of similar IR windows.

Key Words: Heating Experiment, Analysis Technique, Thermal Conductivity, Cooling Efficiency