Gas Turbine High Efficiency Filtration Systems
GE Oil & Gas
Gas turbine high efficiency filtration systems
By MARCO SANTINI, GIORGIO MARCHETTI, FIORENZO GIUNTINI, CARMEN SUAREZ/ GE OIL & GAS
GE Oil & Gas
Gas turbine high efficiency filtration systems
Gas turbine high efficiency filtration systems
By MARCO SANTINI, GIORGIO MARCHETTI, FIORENZO GIUNTINI, CARMEN SUAREZ/ GE OIL & GAS
Abstract
GE Oil & Gas has developed High Efficiency Filtration Systems and an on-line EPA filter replacement system (patent pending) to guarantee high availability and efficiency of gas turbines (GTs). Contaminants entering the GT can cause corrosion, fouling, erosion and melting of particles on hot surfaces, which can rapidly reduce the efficiency and become a serious threat to the turbine. Our GE Oil & Gas integrated approach focuses on selection of the optimum filter elements, maintenance, on-line and off-line water washing, and improvement of the AFS (Air Filtration System) configuration, which includes: increasing the filtration efficiency, on-line filter replacement, separation of the ventilation system, and design for installation and air quality control. This paper describes all the above developments.
The importance of an adequate AFS
Gas turbines (GT) manufactured by GE are operating successfully in rural areas and heavy industrial zones, in Polar Regions and in the tropics, as well as in deserts and in coastal and offshore installations. In order to adapt machines to a variety of environments while realizing their full potential in terms of performance and reliability, it is necessary to treat the air that they consume. Although the dust concentration in the atmosphere is normally very low (e.g., 0.1 mg/m3) a GT requires such a large quantity of air to operate that even a medium sized, heavy duty GT (i.e., 30 MW power output) could ingest more than 300 kg of dust per year without an AFS installed. Typical particle size distribution curves for atmospheric air contaminants are shown in Figure 1. The
Gas turbine high efficiency filtration systems
By MARCO SANTINI, GIORGIO MARCHETTI, FIORENZO GIUNTINI, CARMEN SUAREZ/ GE OIL & GAS
GE Oil & Gas
Gas turbine high efficiency filtration systems
Gas turbine high efficiency filtration systems
By MARCO SANTINI, GIORGIO MARCHETTI, FIORENZO GIUNTINI, CARMEN SUAREZ/ GE OIL & GAS
Abstract
GE Oil & Gas has developed High Efficiency Filtration Systems and an on-line EPA filter replacement system (patent pending) to guarantee high availability and efficiency of gas turbines (GTs). Contaminants entering the GT can cause corrosion, fouling, erosion and melting of particles on hot surfaces, which can rapidly reduce the efficiency and become a serious threat to the turbine. Our GE Oil & Gas integrated approach focuses on selection of the optimum filter elements, maintenance, on-line and off-line water washing, and improvement of the AFS (Air Filtration System) configuration, which includes: increasing the filtration efficiency, on-line filter replacement, separation of the ventilation system, and design for installation and air quality control. This paper describes all the above developments.
The importance of an adequate AFS
Gas turbines (GT) manufactured by GE are operating successfully in rural areas and heavy industrial zones, in Polar Regions and in the tropics, as well as in deserts and in coastal and offshore installations. In order to adapt machines to a variety of environments while realizing their full potential in terms of performance and reliability, it is necessary to treat the air that they consume. Although the dust concentration in the atmosphere is normally very low (e.g., 0.1 mg/m3) a GT requires such a large quantity of air to operate that even a medium sized, heavy duty GT (i.e., 30 MW power output) could ingest more than 300 kg of dust per year without an AFS installed. Typical particle size distribution curves for atmospheric air contaminants are shown in Figure 1. The
References: Salt in the Marine environment and the creation of a standard input for gas turbine air intake filtration systems. Peter T McGuigan. GT 2004 – 53113. Proceedings of ASME Turbo Expo 2004 .Power for Land, Sea & Air. June 14-17, 2004, Vienna, Austria Gas Turbine Inlet Air Treatment. R.L Loud / A.A Slaterpryce. GE Power Generation. GER 3419 Filter Elements Qualification Process in GE O&G Gas Turbine Tutorial – Maintenance and Operating Practices Effects on Degradation and Life. Rainer Kurz / Klaus Brun. Southwest Research Institute. San Antonio, Texas Filtration and Air Cleaning Systems to protect Building Environments. – NIOSH, Department of Health and Human Services Guidelines for Gas Turbine Inlet Air Filtration Systems. – Gas Machinery Research Council. South West Research Institute High Temperature Corrosion in practical Systems. – Journal De Physique. John Stringer. EPRI Particulates. – Zevenhoven and Kilpinen 14 For more information Global Headquarters Via Felice Matteucci, 2 50127 Florence, Italy T +39 055 423 211 F +39 055 423 2800 customer.service.center@ge.com Nuovo Pignone S.p.A. Nuovo Pignone S.r.l. Americas Regional Headquarters 4424 West Sam Houston Parkway North Houston, Texas 77041 P.O. Box 2291 Houston, Texas 77252-2291 T +1 713 683 2400 F +1 713 683 2421 ge.com/oilandgas The information contained herein is general in nature and is not intended for specific construction, installation or application purposes. GE reserves the right to make changes in specifications or add improvements at any time without notice or obligation. GE, the GE Monogram, and imagination at work are registered trademarks of the General Electric Company. ©2012 General Electric Company All Rights Reserved GE imagination at work