Deaerator Pegging ll Thermal Power Plant Light Up Procedure Part 3

what is deaerator pegging A deaerator is typically a counterflow design that facilitates greater contact of the steam to the water, efficient heating and vigorous scrubbing of the water with the steam which removes dissolved gases o2 co2 etc from feed water why pegging is required? because boiler tubes are made of iron if o2 or other dissolved gases go directly into boiler tube it causes corrosion erosion and resulting frequent tube leakage The second purouse is to increase temperature of feed wateer which helps to reduce thermal stress in boiler tube Timestaps 0:00 Introduction 01:45 What is the deaerator pegging 03:20 Deaerator pegging steam 04:15 What is prds 06:00 What is deaerator 12:20 Construction of Deaerator 14:00 Why we do deaerator pegging 16:00 Conclusion