INTERPRESTASI ECONOMIZER PADA SISTEM LOGITUDINAL COIL STEAM WATER TUBE BOILER DITINJAU DARI EFISIENSI PEMBANGKIT TENAGA UAP BAHAN BAKAR SOLAR

Heat loss is one of the most important factors to be considered in the operation of Steam Power Generation. The excessive heat losses contained in the exhaust gases of combustion are one of them. Exhaust gas temperature is still too large will reduce the efficiency of the boiler. So to overcome the waste. Excessive exhaust gas temperatures can be recovered for the problem economizer uses as a means of reducing the temperature of the gas raising the feed water temperature in the economizer by passing the exhaust gas and then measuring the temperature of the flue gas and feed water temperature. After done the calculation then got the value of flue gas with economizer equal to 9088,4591 kcal and without economizer equal to 11507,0167 kcal. Can be seen the reduction of heat by using economizer of 2104,8419 Kcal with cycle efficiency of 18.18% for the combustion air ratio 16.5: 1 So to reduce the loss of a large can use economizer is very helpful to improve the efficiency of the cycle of Steam Power Genration