Authors - Jagriti Singh Chundawat, Ashish Kumar, Monika Saini Abstract - Thermal power plants are the backbone of the electricity generation industries. The steam generating unit is the core element of the thermal power plants. The performance and maintenance of this system faces a lot of challenges over time. RAMD analysis plays a crucial role in evaluating the performance of any system. The main purpose of this study is to evaluate the RAMD measures such as reliability, availability, maintainability, dependability, mean time between failure (MTBF) and mean time to repair (MTTR). For this purpose, for each subsystem the diagram of transition between state to state are drawn and using Markov chain process their corresponding Chapman Kolmogorov differential equations derived. An Exponential distribution follows by Both the failure and repair rates for all subsystems. This RAMD analysis shows that the boiler subsystems perform best with highest availability i.e. 0.99912 among all the subsystems. The overall availability of a steam generating system is 0.98008. The main findings of these studies are helpful for the thermal power plant designers, containing comprehensive knowledge that will promote productivity and efficiency.
