COMPARATIVE STUDY OF TWO STANDBY INNOVATIVE SYSTEMS WHERE OPERATION OF ALL STANDBY UNITS IS NECESSARY ON THE FAILURE OF MAIN UNIT

The present paper gives the comparative study with respect to profit between two models for boil er working in thermal power plant. The system consists of one high pressure boiler, which is a main unit and two/three low pressure boilers, which are cold standby units. Model I comprises one main unit and two standby units and Model II comprises one main unit and three standby units. Upon the failure of main unit in Model I as well as in Model II, all the standby units will start functioning together. The system will be in failed state on the failure of main unit and any of the standby unit. Comparative S tudy for MTSF and profit has been done for both models graphically. The system is analyzed by making use of Semi - Markov processes and Regenerative Point Technique.