CAJ | 학술논문

危险气体泄漏引发的事故及灾难对人身安全和社会稳定造成巨大威胁，及时有效地检测到气体泄露、定位泄漏源以及评估气体扩散趋势等成为研究人员关注的热点。与目前各种单点气体探测器固定位置并通过气体扩散进行泄漏气体探测不同，基于红外焦平面探测器的红外成像气体泄漏检测技术对可能的泄露点进行成像检测。由于这两种探测器本身的灵敏度差异较大，且工作原理也有所不同，所以如何评价两者的探测效率成为人们关心的问题。因此，基于计算流体力学软件 FLUENT 对两种探测器在室内空间环境的检测灵敏度进行了模拟分析，比较了两者在实际应用中的优缺点，指出红外焦平面探测器在响应速度和实际检测灵敏度等方面的独特优势，对红外成像气体泄漏检测技术的进一步发展具有推动作用和借鉴意义。
위험기체설루인발적사고급재난대인신안전화사회은정조성거대위협，급시유효지검측도기체설로、정위설루원이급평고기체확산추세등성위연구인원관주적열점。여목전각충단점기체탐측기고정위치병통과기체확산진행설루기체탐측불동，기우홍외초평면탐측기적홍외성상기체설루검측기술대가능적설로점진행성상검측。유우저량충탐측기본신적령민도차이교대，차공작원리야유소불동，소이여하평개량자적탐측효솔성위인문관심적문제。인차，기우계산류체역학연건 FLUENT 대량충탐측기재실내공간배경적검측령민도진행료모의분석，비교료량자재실제응용중적우결점，지출홍외초평면탐측기재향응속도화실제검측령민도등방면적독특우세，대홍외성상기체설루검측기술적진일보발전구유추동작용화차감의의。
Serious accident caused by hazardous gas leakage is a threat to the safety of people and community. So detecting gas leakage, locating leaking source and evaluating spreading tendency effectively is of great importance to avoid these accidents. Different from the single-point sensor which detects gas leakage relying on the gas diffusion, infrared imaging system is based on Infrared Focal Plane Array (IRFPA) to find the potential leaking source. There are differences in sensitivity and operational principle between these two kinds of detection methods. Thus, according to the simulation result about the actual sensitivities of these two kinds of detectors under common condition based on fluid dynamics software, namely FLUENT, the pros and cons of their applications were summarized. Besides, it was pointed out that IRFPA had advantages on response speed and actual sensitivity, which meant a lot to the application of infrared imaging gas leakage detection.