Evaluation the Effect of Thermal Insulation in the Boilers Efficiency A Case study at BOILER OF Dr. MAHMOUD SHAREIF POWER STATION

Abstract

Boilers of Dr.Shareif Power Station suffer a power loss by radiation and convection. The objectives of this research to improve boiler efficiency by reducing heat losses due to radiation and convection. The methodology of this research by collecting data from Khartoum North Power Station and Calculate boiler heat losses throw thermal insulation and calculate optimum insulation thickness. Calculate pay back if we repair the boiler thermal insulation. To study the problems of power losses, a thermal camera was used to locate and spots of heat radiation in the boiler. The heat losses were estimated to be 250kw which cost 112935 SDG per year. This work will assist in determining what is needed when on over hall maintenance in terms of location and insulation type and thickness. In this case heat losses by radiation were 62905 W and by convection were 19806 W. 32 cm is the thickest insulation that will pay for itself in one year. Using infrared thermal camera is the optimum method for studying heat losses from boilers side wall.