Easa part 66 compliant module 15 on gas turbine engine maintenance for part 66 b1. Aircraft and engine maintenance, repair and overhaul core. Steam quality steam must be of the highest quality. The atmosphere near the ground is filled with tiny particles of dirt, oil, soot, and other foreign matter. Discuss engine lubrication system maintenance procedures.
P ug student department of electronics and instrumentation engineering saveetha engineering college, chennai. The following addresses best practices for optimal steam system turbine maintenance and operation. Although the manufacturer andor the faa may allow flight up to 10% over the scheduled maintenance timeframe that is, may fly up to 110 hours since the last 100hour inspection, flight may be performed only for the purpose of ferrying the helicopter to the maintenance facility. Increase the ratio of poweroutput to engine weight by increasing the turbine inlet temperature. The oil is only renewed by topup, typically accomplished every day to compensate for normal engine oil consumption. The taurus 60 gas turbine is designed for a high degree of compliance with american petroleum institute api requirements. Jet engines require lubrication to prevent friction from reducing the engines efficiency. Condensate entrapment in the steam supply increases turbine steam rates, reduces the steam turbine efficiency, and causes erosion of steam turbine components governor valves, blading, and nozzles. Easa module 15 gas turbine engines book, ebook, aircraft. It has been specifically developed to provide the optimum balance between low coking and elastomer compatibility. Aeroshell ascender takes turbine engine oils to a completely new dimension. Operation and maintenance schedule of a steam turbine plant. This handbook is available for download, in pdf format, from.
Aeroshell ascender high performance turbine engine oil. Langston, university of connecticut and george opdyke, jr. Costeffective maintenance of gas turbine aeroengines is achieved by com. The oil cooler used with this aircrafts opposedtype engine is the honeycomb type. Jet engine oil lifetime and oil change in commercial jet.
The special hydraulic shape of the bsk turbine makes it possible. Sustainment of commercial aircraft gas turbine engines. The fim gives a procedural checklist, which is a tedious. This figure shows the probability density functions pdfs for. S assistant professor department of electronics and instrumentation engineering saveetha engineering college, chennai,tamilnadu,india dennis nathaniel. Standard practice for design of gas turbine generator lubricating oil systems1 this standard is issued under the. The applicable manufacturers instructions should be followed. Much of the damage to the blades arises from foreign matter being drawn into the turbine engine air intakes. The engine oil supply is contained in an integral oil tank which forms the rear section of the compressor inlet case. Common oil analysis parameters for engines and rotating machines such as turbines, and gearboxes. With an understanding of the different types of lubricants, their characteristics. Turbine lube oil system monitoring and control using pic controller karthigeyen. Key technical reference documents to include in maintenance planning gas turbine design maintenance features the ge heavyduty gas turbine is designed to withstand severe duty and to be maintained onsite, with offsite repair required only on certain combustion components, hot gas path parts, and rotor assemblies needing specialized shop service. Introduction to gas turbines for nonengineers published in the global gas turbine news, volume 37.
Turbine systems are subject to contamination from several sources and deposits will accumulate even though the oil is clean. Consequently, the oil contained in the tank is a mixture of differentaged oils, some old and some new. Maintenance excellence rolly angeles rsa 2003 tables on oil analysistables on oil analysis file no. Engineers are welladvised here to follow the wellknown dictum. Soap is not generally used unless it is part of maintenance schedule. To keep the engine as clean as possible and reduce degradation between maintenance stops, both an effective online water wash system as well as effective air intake filter system, are critical factors. Our original goal was to compile a comprehensive reference book of common inservice oil analysis techniques to help readers understand and choose the right technique and. It has been a few years since the publication of the first edition of spectro scientifics inservice oil analysis handbook. The result is a standard package capable of satisfying the needs of a typical user for low installation and maintenance costs.
Turbine engines, consequences of absence of a prv in the oil filter and non compliance and non adherence of maintenance procedures of lubrication system. The lube oil treatment system is used to clean the oil circulating in the gas turbine lubrication and power oil system. Turbine engine oil system maintenance flight mechanic. Turbine engine management, turbine engine overhaul, hot. Page 7 maintenance philosophy a fundamental philosophy of the new ge5 gas turbine is simplicity of design, layout and procedures. We offer turbine engine video borescope inspections and prepurchase inspections. A steam power plant continuously converts the energy stored in fossil fuels i. There is no oil change as long as the engine stays on wing. Ger3620n heavyduty gas turbine operating and maintenance. Oil is drawn by a pump from the oil tank, and on completion of desired treatment, oil is returned to the oil tank.
The advent of synthetic oil for gas turbine engine lubrication. Mechanical design of turbojet engines an introduction. Turbine lube oil system monitoring and control using pic. Jet engines bearings, seals and oil consumption haw hamburg. Turbine engine oils teo our collaboration with turbine engine manufacturers has led to the development of a complete range of turbine engine oils, from mineral oil formulations through to leading edge, fully synthetic hindered esters. Page 6 ge5 gas turbines package the gas turbine packages were designed with an emphasis on standardization, and optimization of factory and field assembly operations. Engine mounts check engine oil sample obtain check engine oil level for excessive usage. Rolly angeles technical training all rights reserve.
Its also designed to cope comfortably with the new generation of jet engines where conditions are hotter and maintenance intervals are longer. It can be used in several different modes in critical industries such as power generation, oil and gas, process plants. By far the most significant factors affecting the maintenance interval are the type of operation base load, peak load, trips, starts, the type of fuels used, the method of nox control, and the quality of air entering the turbine. Maintenance and repair work may only be carried out by trained technical personnel in accordance with all local and national requirements and standards. Repair of an oil tank usually requires that the tank be removed. Prelube pump inspect engine protective devices check engine valve lash inspect adjust fan drive bearing lubricate fuel control linkage check lubricate fuel injector inspect adjust. Best practices for steam turbine maintenance and operation. Dwg number gek32568 rev h released 6620 page 1 of 26. Frequent inspections are particularly important during the initial period for operation of a new turbine or new runner, as they will enable cavitation damage to be detected at an early stage and remedial measures to be effected before pitting becomes extensive. A typical maintenance program requires checking engine oil before. Oil filter maintenance and oil change intervals for turbine engines vary widely from model to model, depending on the severity of the oil temperature conditions imposed by the specific airframe installation and engine configuration. Maintenance and overhaul of steam turbines wgp42 05.
Common oil analysis parameters for engines and rotating machines such as turbines, and. Oil systems for commercial jet engines are rarely drained. Inservice oil analysis for condition based maintenance covers a wide array of topics. The basic configuration and recommended maintenance of ge heavyduty gas turbines are oriented toward. File type pdf tpe331 maintenance manual tpe331 maintenance manual more tpe331 talk about maintenance costs etc. Chapter 5 jet aircraft engine lubrication systems the increased complexity of aircraft engines has added to the requirements for proper lubrication.
Avoil characterisation of the toxicity of aviation turbine engine oils. The overall target is to maintain high engine performance, and extend the interval between maintenance stops through effective online washing. Maintenance of the compressor, or cold section, is one of concern because damage to blades can cause engine failure. Bskturbine the surface aerator biogest international. The gas turbine combines high performance operation with rugged industrial construction. Typically this includes the laboratorys interpretation of the test results and. The gearbox drives pumps for the oil, fuel, hydraulic and pneumatic. Lubrication system maintenance practices flight mechanic. Searching for gas turbine maintenance schedules markus bohlin, kivanc doganay, per kreuger, rebecca steinert, and mathias warja n preventivemaintenance schedules occurring in industry are often suboptimal with regard to maintenance coallocation, lossofproduction costs, and availability.
How can you use the aircraft maintenance manual part 1 for new aeronautical engineers if the contents are useful for you, please. Oil changes and some costs associated with that, size of engine etc. Aviation oil outlet offers aviation turbine engine oils from mineral oil formulations through to leading edge, fully synthetic hindered esters. A number in parentheses indicates the year of last reapproval. There have been numerous causes of steam turbine failures worldwide. Some oil analysis laboratories have recognized the need for more comprehensive testing to determine lubricant condition for inservice turbine oils and offer specialized test slates and reports for inservice turbine oils. Gas turbine aero engine courtesy of general electric jet engine division. Maintenance of gas turbine lubrication systems consists mainly of adjusting, removing, cleaning, and replacing various components. Pdf the lubricant systems used in turbine engine applications are. Lubricating oil recommendations with antiwear additives for gas turbines. This affords the ge5 a position of market leadership in cost and availability through.
Lubricating oil recommendations for gas turbines coast lubricants. Delft university of technology gas path analysis for enhanced aero. The teardown analysis of the t63a700 engine used in fuel extender research at the federal aviation administration faa technical center was conducted by the tjnited states army aviation systems command avscom depot engineering and reliability centered maintenance support office derso in order to assist the. Explain the goals and requirements of the joint oil analysis program joap. Routine sampling of the turbine lube oil for proper viscosity. Factors influencing maintenance intervals for gas turbines twi.
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