@thesis{thesis, author={Nofirman Nofirman and SIALLAGAN ARDIAN}, title ={Analisis Turbine Heat Rate Sebelum dan Sesudah Overhaul di unit 3 PLTU Jabar 2 Pelabuhan Ratu}, year={2019}, url={http://156.67.221.169/617/}, abstract={The demand that power plants to have reliable performance is very important and always becomes the main discussion in every power plant. One of the important parameters in determining how much performance the PLTU has produced is turbine heat rate. Turbine heat rate in this study was obtained by calculating the heat balance of the feedwater heater to determine the extraction steam flow and final feedwater flow. In this study also calculated the system leakage contained in the turbine cycle, main steam flow, cold reheat steam flow, hot reheat steam flow and also calculate the thermal efficiency of the unit. As well as several other parameters such as generator output power is used to find the value of the turbine heat rate of a power plant. Analysis was carried out on the turbine heat rate just before overhaul (07 April 2019 - 14 April 2019) and after overhaul (19 May 2019 - 26 May 2019). Main steam flow, system leakage, extraction steam flow on each heater HPH 1, HPH 2, HPH 3 and Deaerator are parameters that can affect the turbine heat rate. Turbine heat rate before overhaul is 2453,535 kcal / kwh - 2501,925 kcal / kwh and after overhaul is 2352,955 kcal / kwh - 2453,025 kcal / kwh. There was a decrease in turbine heat rate of 48.9 kcal / kwh - 100.58 kcal / kwh with a load range of 250 MW - 350 MW after overhaul, meaning an increase in turbine performance resulted in an increase in thermal unit efficiency of 0.777% - 1.497%. As a result, less heat or fuel is needed to produce electricity by 1 kwh. Therefore, overhaul is very important to do and maintain the performance of a power plant.} }