지역난방 열수송관로 누수 진단 신뢰도의 진단거리, 외부가진 민감도 평가
Sensitivity Evaluation of Leakage Diagnosis Reliability for District Heating Pipelines Considering Diagnostic Distance and External Excitation
District heating pipelines serve the purpose of supplying high-temperature, high-pressure heated water produced at community energy facilities to various recipients, including residential complexes within the area. To minimize energy loss during the process of transporting hot water from production facilities to consumer facilities, these pipelines are constructed in the form of double-insulated pipes. It is crucial to pre-diagnose defects in these heat transport pipelines as high-temperature, high-pressure water leakage can cause both human and material damage. In this study, we experimentally evaluated the pipeline hot water leakage diagnosis method using acoustic emission sensors and accelerometers. The average diagnostic reliability across the entire section was 89.17%. Under external excitation conditions, the diagnostic reliability decreased to 88.79-98.16%, and the diagnostic reliability based on AE signals decreased to 82.41-97.37%.
한국어
지역난방용 열수송관로는 집단에너지시설에서 생산된 고온-고압 열수를 지역 내 집단거주시설 등 수용처 에 공급하는 역할을 하며, 생산시설에서 소비시설까지 고온수를 이송하는 과정에서 에너지 손실을 최소화하기 위 해 이중보온관 형태로 제작된다. 이러한 열수송관로는 고온-고압의 열수 누수 시 인적 및 물적 피해를 동반하기 때문에 결함 사전 진단이 매우 중요하다. 본 연구에서는 acoustic emission sensor와 accelerometer를 이용하여 관로 열수 누수 진단 방법을 실험적으로 평가하여 전체 구간에서 평균 89.17%의 진단 신뢰도를 확보하였으며, 외 부 가진 조건에서의 상태 진단 신뢰도는 88.79~98.16%로 감소하고, AE 신호에 의한 상태 진단 신뢰도는 82.41~ 97.37% 수준으로 감소함을 확인하였다.
목차
요약 Abstract Ⅰ. 서론 Ⅱ. 연구방법 2.1 실험시설 및 실험방법 2.2 실험 신호처리 및 데이터 수집 Ⅲ. 분석 및 고찰 Ⅳ. 결론 및 고찰 REFERENCES
Ever since next generation convergence technology became one of the most important industries in the nation, computing professionals have encountered a growing number of challenges. Along with scholars and colleagues in related fields, they have gathered in avariety of forums and meetings over the last few decades to share their knowledge, experiences and the outcome of their research. These exchanges have led to the founding of the International Next-generation Convergence technology (INCA) on December 1, 2015. INCA was registered as an incorporated association under the Ministry of Information and Communications. The main purpose of the organization is to improve our society by achieving the highest capability possible in next generation convergence technology.
간행물
간행물명
차세대융합기술학회논문지 [The Journal of Next-generation Convergence Technology Association]