The article covers various aspects of boiler operations, including high pressure systems, combustion principles, coal pulverization, dust collection, and heat transfer. It discusses boiler auxiliaries, mountings, and accessories, as well as the chemistry of combustion and ash handling systems. The researchers explore topics like steam condensers, evaporators, and steam turbines, along with boiler design and energy generation from waste. The findings highlight the importance of understanding temperature conditions, heat transfer, superheaters, and nuclear steam generators in efficient boiler operations.