Gas Turbine Lube Oil Cooling System

The turbine oil is cooled directly in the air heat exchanger.

Gas turbine lube oil cooling system.

Lube oil cooler performance is impacted by a number of plant specific variables. With the compact and reliable construction alfa laval finned coil air heat exchangers ensures optimal heat transfer of the turbine lube oil. Lube oil systems provide lubrication and cooling to gas turbines and other industrial equipment. Approximately 48 of the waste heat is in the exhaust stream 27 removed by the lube oil system and 25 removed by the jacket cooling system.

However their waste energy is split between the exhaust lube oil system and jacket cooling system. Gas turbine combined lube and control oil in gas turbine power plants lubrication of the bearings on the turbine shaft main roller journal thrust bearings keeps the turbine running at its optimum. Common oils used in these machines have a viscosity of 32 centistokes cst. The system assists in dissipating or settling contaminants providing for temperature fluctuations and storing oil.

A single lubricating system is usually used for heavy frame gas turbines and driven equipment using mineral oil. Coolers are utilized on lubricating oil reservoirs of large rotating equipment to control viscosity and reject heat. Some applications use synthetic lubricating oil due to its fire resistant property. Alfa laval finned coil air heat exchangers are used to cool the turbine lube oil in power plants.