Speakers
Description
Many critical industrial systems, especially offshore assets, e.g. floating wind turbines, have a system of series equipment that is configured with short-term redundancy (implicit parallel configuration). In fact, such configuration is very common in many industrial applications, wherever a pump or compressor feeding a buoyancy tank; if the pump fails, the tank can alone keep the entire system functioning for a short time under the impact of Met-Ocean conditions (Wind Speed and Wave Height). For such a configuration, the traditional reliability block diagram is challenging and has limitations, reflecting part of the real-life process. This paper presents an agent-based simulation approach that overcomes the reliability block diagram method and assess the operability, maintainability, and availability of Series-Temporary Redundant systems under the impact of 20 years of Met-Ocean historical data and specific marine support. The obtained results show that the system availability, using the reliability block diagram method, is about 98.56% compared to the availability of 98.6% using the agent-based simulation approach. The Series-Temporary redundant structure enhanced the availability with 0.04%, offering 773 operating hours. The Series-Temporary redundant structure offers an approximate buffer time of 3.2 days, which should be sufficient to repair the feeding equipment (pump or compressor).
