SYSTEM DESCRIPTION Shaft seals are supplied with pressurized seal oil to prevent hydrogen losses at the shaft and air entry into the hydrogen-cooled generator. As long as the seal oil pressure in the annular gap exceeds, the gas pressure in the generator, no hydrogen escapes from the generator housing. TheRead More

INTRODUCTION A system provided in order to bypass steam from HP turbine termed as HP BYPASS system. A system provided in order to bypass steam from IP&LP turbine termed as LP BYPASS system. Work in parallel with Turbine during load rejection in a coordinated manner with steam generator. During startRead More

STEAM ATTEMPERATION CONCEPT Superheating is a process in which stem is heated above saturation temperature & it is in the form of sensible amount of heat. For a unit he attemperation water, which is 2-5% of the total steam flow, may come from the boiler feed water pump outlet, orRead More

Tangential firing create turbulent zone in the center of the furnace by directing a horizontal coal firing from each corner of furnace. It form an imaginary circle in which the flame path is tangent. This is done at each elevation for tangential firing. As each elevation creates a circle thenRead More