@thesis{thesis,
		author={Aris Prayoga  Tegar and Prabowo },
		title ={Optimasi Coal Blending Terhadap Efisiensi Boiler Di Unit 7 PT.Indonesia Power Suralaya PGU},
		year={2020},
		url={http://156.67.221.169/3224/},
		abstract={Thermal power plant is one of the many power plant used and developed in Indonesia. Meanwhile, coal is the fuel used to generate electricity at the thermal power plant. Coal calories used by thermal power plant in Suralaya are 4.600 - 5100 calories with an average usage of 2.000 tons/hour. Blending Low-calorie with high-calorie coal was another method to produce quality of coal with a heating value according to the design of thermal power plant. The coal blending method influenced of boiler efficiency. In this paper, analysis of the types of low-rank coal and medium rank coal is calculated at a mixture ratio of 25L : 75M, 50L : 50M, and 75L : 25M. And the results of coal blending, which is a mixing method of two coal types that have different quality, are obtained that the ratio of the coal mixture with a 25L : 75M was more efficient than the other mixtures. This happened because there was a high boiler efficiency value in this mixture, where the highest boiler efficiency value was obtained at 85.498%. It confirmed that the percentage of coal types was very affects, and the application of coal blending could increase the efficiency of the boiler.}
		}