Condition Based Monitoring of boiler parameters in a thermal power station (Case of anonymous company)

In large scale industrial applications, the controlling and optimization of the parameters must be done efficiently and effectively so as to attain smooth operation of the plant. In this paper the main control parameters in the boiler are coal flows, temperatures in the combustion zone, air to fuel ratio, ash content that is the percentage of ash in raw coal, and mineral content. These parameters are to be monitored so as to avoid clinker formation on the platen super heater tubes in the boiler. Condition Based Maintenance (CBM) was used as the main maintenance method to monitor the boiler parameters and a branch known as fuzzy logic for the monitoring of the boiler parameters. The results show that the boiler should stop or continue to run depending on the Furnace Draught Pressure (FDP). When the FDP is within the range -7.5 - 5kPa the fuzzy controller send a message to continue run the boiler, fro -10kpa to -7.5kPa the fuzzy controller send a message to stop the boiler, also from 6kPa to 10kPa the fuzzy will send a message to stop the boiler. The boiler will only run when the logic is 1 and when the logic is zero the boiler should stop but in the case that the logic is 0 but there is no clinker that is forming the run command will be executed that is the fuzzy read the environment and act according to the environment. On the ID fans when the electrical consumption is within the range 0.9225-0.9375kPa the fuzzy controller send a message to run the boiler because there will be no clinker formation and this is shown by the accepted range of electrical consumption, any value outside this range the fuzzy controller will send a message to stop the boiler. The fuzzy logic controller is used in the sense that it is adaptive and can control itself when necessary.