RT Conference Proceedings T1 Reliability evaluation of an HVAC ventilation system with FTA and RBD analysis A1 Ciani, Lorenzo A1 Guidi, Giulia A1 Galar, Diego AB Rail industry is rapidly developing, and rail becomes ever more viable in a wide range of regions. Therefore, the passenger experience and comfort has become a major concern for operators in the world. Heating, ventilation and air conditioning systems are used in railways to provide passengers thermal comfort and proper air motion. The ventilation system is one of the main elements of the system. Its components include both mechanical and electronic devices. All components are subjected to stress, and this tends to reduce their life cycle; the reliability of the ventilation system must be evaluated to plan and schedule appropriate maintenance activities. The paper evaluates reliability of the ventilation system using fault tree analysis and a reliability block diagram. Both techniques analyse data qualitatively; moreover, with specific algorithms they also provide quantitative results in term of reliability and probability of system failure. The paper compares the two reliability evaluation methods to verify their accuracy. PB Institute of Electrical and Electronics Engineers Inc. SN 9781728186023 YR 2020 FD 2020-10-12 LK https://hdl.handle.net/11556/1859 UL https://hdl.handle.net/11556/1859 LA eng NO Ciani , L , Guidi , G & Galar , D 2020 , Reliability evaluation of an HVAC ventilation system with FTA and RBD analysis . in ISSE 2020 - 6th IEEE International Symposium on Systems Engineering, Proceedings . , 9272024 , ISSE 2020 - 6th IEEE International Symposium on Systems Engineering, Proceedings , Institute of Electrical and Electronics Engineers Inc. , 6th IEEE International Symposium on Systems Engineering, ISSE 2020 , Virtual, Vienna , Austria , 12/10/20 . https://doi.org/10.1109/ISSE49799.2020.9272024 NO conference NO Publisher Copyright: © 2020 IEEE. DS TECNALIA Publications RD 31 jul 2024