액체질소의 연속 누출 실험

• Published in: 한국수소 및 신에너지학회 논문집 Vol. 34; no. 5; pp. 526 - 534
• Main Authors: 한용식(YONG-SHIK HAN), 김명배(MYUNGBAE KIM), 르-두이 응옌(LE-DUY NGUYEN), 김민창(MINCHANG KIM), 김창현(CHANGHYUN KIM), 김태훈(TAE-HOON KIM), 도규형(KYU HYUNG DO), 최병일(BYUNG-IL CHOI)
• Format: Journal Article
• Language: Korean
• Published: 한국수소및신에너지학회 2023
• Subjects: Vapor cloud(증기운); Liquid hydrogen(액체수소); Liquid pool(액체풀); Real scale (실규모); Liquid nitrogen(액체질소); Continuous release(연속 누출)
• ISSN: 1738-7264; 2288-7407
• DOI: 10.7316/JHNE.2023.34.5.526

To evaluate the risk of leakage when using liquid hydrogen, a leakage test was conducted using liquid nitrogen in an outdoor environment rather than a laboratory environment. To assume a real-scale continuous leak, liquid nitrogen was allowed to leak for 5 minutes through a pipe with a diameter of 25.4 mm at a design spill rate of 60 L/min. The measurement system consisted of devices for climate conditions, LN2 spread and vapor clouds. The main experimental results are the liquid pool radius and the concentration of vapor cloud, and the radius of the liquid pool was compared with the numerical analysis results.