Hazard and Operability study in Boiler System of The Steam Power Plant

The Pulverize is a major part of the boiler combustion system and an important part in the system of steam power plant (PLTU). Pulverizer plant serves to break chunks of coal into the coal ash was then fed to the burner. Type of feed coal into a pulverize is cleaned with a value product pulverize optimum 30%. The percentage of this value greatly affects the production of steam in the boiler. Therefore the boiler has a very high pressure, is inflammable zone and has a dangerous and potentially very high risk, and then the system needs to be investigated. By performing an evaluation and analysis of critical points in the pulverize, boiler, measuring the level of danger and risk that occurs, and examine other possibilities that would occur in the worst condition by using hazard and Operability (HAZOP) studies by recording the deviation values variable process, making the model Fault Tree Analysis (FTA) and to simulate, it can be known the level of hazard and risk systems, so you can make recommendations and created a new work instructions.. Key-Words: Pulverizer, Boiler, Steam power plant, HAZOP, Fault Tree Analisis.