Air Intake Prefilter Application at GT 13E2 PT. PJB UP Muara Tawar to Increase Plant Reliability, Availability, and Maintenance Time Interval

The role of air intake filter in gas turbine is very important to produce clean air into combustion chamber. Combustion can perform perfectly in proportional rasio of fuel and oxygen.Filter air intake of gas turbine GT 13E2 use cylindrical cartridge filter type and it is installed vertically. air intake filter performance reduce rapidly if operated in dirty ambient air. This condition require filter replacement to maintain air mass flowrate that required in combustion. However, displacement cannot be performed while plant under operation. Therefore, the effort to increase life time of filter is necesary. Existing air intake filter in block 1 utilize 900 pieces of Donaldson brand. the specification of filter are 16 inches outside diameter. 34.5 inches height. celulose base with pourusity 52μ. To reduce amount of attached particle in filter surface, installation weather louver is required. In order to increase plant reliability, availability and maintenance time interval of gas turbine, installation of prefilter and wheater louver at intake of compressor have been performed. This effort provide increasing plant reliability, availability and maintenance time interval. Finally, the benefit of this effort increase productivity of electricity and company profit.