Analysis and impact of high Ash content in pulverized Coal by using Six Sigma in Thermal Power Plant

Abstract

In all over World production of power pulverized coal fired boilers are largely used. In India also 80% power is generated by pulverized coal fired boilers in National Thermal Power Plants. A very large quantity of ash is produced from these boilers. The quality of ash changing from plant to plant and from coke to coke based on resource of supply and method of combustion. In this research paper an attempt has been made to categorize problems and solutions related to it as given as for disposal of fly ash different types of ash ponds have been discussed. The effect of various type of ash/fly ash on air, land, water, agriculture living creature and human beings have been explained. And solutions are also suggested. Experimental effect of addition of polymer carboxy methyl cellulose in slurry have been identified to increase ash settling rates. And optimum ash settling rates 2ppm addition of carboxy methyl cellulose is sufficient. Utilization of fly ash for manufacturing of useful products has been mentioned