BibTeX:

@article{IJIRSTV3I11039,
     title={Efficiency Improvement in Boiler by Trimming Oxygen},
     author={Sanghavi Sumeet M and Vijay M Parmar},
     journal={International Journal for Innovative Research in Science & Technology},
     volume={3},
     number={11},
     pages={65--68},
     year={},
     url={http://www.ijirst.org/articles/IJIRSTV3I11039.pdf},
     publisher={IJIRST (International Journal for Innovative Research in Science & Technology)},
}

Thermal efficiency of boiler can easily improve by number of methods. Some of them required big changes in the system, but some of the techniques are available by which it is very easy to improve the boiler efficiency without major changes. This paper focus on this issue that how the efficiency can improve of the three different boiler - two spreader stoker, one FBC of one of the power plant at leading chemical unit which have same steam producing capacity of 30 TPH at 56kg/cm2(g) pressure. Management of the company argued that they want to improve the efficiency and reduce the cost with very less changes in the system. One of the best methods for that is trimming oxygen and reduces excess air with control the level of CO. An online flue gas monitoring system or flue gas analyzer is required to measure oxygen level, excess air, CO level and various losses in the boiler at economizer outlet, APH outlet, ESP outlet and ultimately find efficiency of the boiler. Controlling of oxygen is done by ID and FD fan damper.

Boiler efficiency, Trimming oxygen, Excess air, online flue gas monitoring, Flue Gas analyzer