@thesis{thesis, author={ISHAQ FACHRUROZI and Rusjdi Halim}, title ={ANALISIS PERFORMA LUBE OIL COOLER TURBIN GAS SEBELUM DAN SESUDAH PERAWATAN DI BLOK 1B PLTGU PRIOK}, year={2020}, url={http://156.67.221.169/2921/}, abstract={Gas Turbine Lube Oil Cooler is a displacement tool which has undirectional flow type as well it?s function as a lube oil cooler on bearings which existed on turbine shaft gas, generator gas and the other component in PLTGU which consists of three coolers, fan, headers, bundles tube, fins, motor fan, thermometer, preasure gauge tools and speed reducer. If turbine gas of lube oil cooler decreased in performance while unit operation, then lube oil?s supply to turbine shaft gas bearings, generator gas and the onther component will experience heat increasement, also if it lefted continuously it will case the unit trip. On it?s process, lube oil will come out from turbine shaft gas bearings, generator gas and the other component, then lube oil entered to main oil tank with vacuum?s support which existed on main oil tank for processing back the lube oil come out with pump?s support then flowed to lube oil cooler. On lube oil cooler, lube oil come in to bundles tube then flowed by air from the bottom up with fan?s support, also then flowed to certain component. On the unit operation, lube oil cooler performance is very important to be secured so lube oil wouldn?t experience hyper heat increasement. Based on those cases, it is very important to do the treatment and knowing the factor of lube oil cooler perform decreasement.} }