The LMS100 uses an intercooler to cool the air between the low- and high-pressure compressor. Siemens has also derived a mobile unit from the SGT-A65. The Industrial 501-K, for example, is now the Siemens SGT-A05 (p. 81, Turbomachinery 2018 Handbook). The aeroderivative gas turbine has many advantages and disadvantages too. This is augmented with technologies to generate power with less noise, lower emissions, and higher baseload and part-load efficiency using natural gas fuel. In 2015, after endurance and reliability testing, the FT4000 gas turbine was put into commercial operation. RWG is responsible for the scheduled maintenance, including mid-life and major overhaul. These can deliver anywhere from 30 MW to 140 MW of power. Turbine Technics Inc. It incorporates a Mark VIe control system for the hybrid package. MTU Maintenance recommends regular maintenance, including water washing in the field. Low lifecycle costs and an excellent return on investment right from the start are just two of the benefits that our gas turbine portfolio offers. “By the time the unit reaches our workshop it’s too late to deal with issues that have led to component degradation and failure.”. Aeroderivative turbines, which are characterized by high efficiencies at smaller scales, are of special interest because transportation costs for biomass constrain biomass conversion facilities to relatively modest scales. var abkw = window.abkw || ''; “Ultimately the work scope and final maintenance cost is determined by the condition of the gas generator,” said Conway. A few hundred dollars of packaging materials could save thousands in unnecessary repairs. We bring a wealth of experience to utility power generation, marine propulsion, district heating, grid stability, Oil & Gas operation and mobile power. From an engineering perspective, the design of the gas turbine is less complicated than the more commonplace piston engine. Low NOx emissions can be achieved by adding water injection capabilities as an optional feature. Aeroderivative engines maintain the same legacy aircraft engine architecture and replace the fan and booster with a higher speed compressor booster driven by a single-stage intermediate turbine. Operators are less reliant on long-term service agreements, placing a greater focus on cost management of individual maintenance events. Further, its Berlin-Brandenburg facility is a level IV licensed service depot, offering a full range of MRO services for LM 2500, LM 5000 and LM6000 gas turbines. Aeroderivative gas turbines continue to exhibit the excellent performance on standard fuels such as natural gas and petro-diesel. The aeroderivative gas turbine is a lighter weight variation of a gas turbine. The Industrial Avon 200 is now the SGT-A20 gas generator. Overview G5 is the latest technology generation of our PGT25/LM2500 aeroderivative gas turbines family that includes over 2,500 engines with nearly 100 million combined operating hours in applications around the world. GE’s aeroderivative gas turbines show experience on a wide range of gas and liquid fuels and can be operated on many alternative fuels that are available worldwide. The General Electric LM1600 is an industrial and marine gas turbine, a derivative of the F404 aircraft engine series. Based on advanced aircraft engine technologies and materials, they are significantly lighter, respond faster and have a smaller footprint compared with their heavy industrial GT counterparts. These include the 4 to 7 MW SGT-A05 (Industrial 501-K), the 10 to 15 MW SGT-A20 (Industrial Avon 200), the 27 to 38 MW SGT-A30 and SGT-A35 (Industrial RB211), the 41 to 44 MW SGT-A45, and the 53 to 66 MW SGT-A65 (Industrial Trent 60). It is typically used for distributed generation, peaking applications, and grid support to counterbalance fluctuating wind energy. The LM6000 DLE 57 is the latest model in the LM6000 family. Despite being classified as a gas turbine, the fuel source for the aeroderivative turbine is not really gas. The SGT-A45 can run on gas or liquid fuels, and transition between both fuel types when one becomes unavailable. Key features include: Dual-fuel capability without water consumption, and maintenance intervals of up to 36,000 hours for the hot section and 72,000 hours for overhaul. It is delivered in three main trailers with some additional shipped elements. aeroderivative gas turbine services and solutions Born from aviation technology, our aeroderivative gas turbines may not fly, but they can certainly travel. These days the aeroderivative models are becoming more popular for use in electrical power applications though more for peak and intermittent purposes rather than base power generation. Advanced aircraft engine and space technologies have been used to provide maintainable, flexible, light weight and compact aeroderivative gas turbines. Its test cell for GTs is one of the largest in the world, using real-load operating conditions to understand vibration patterns. More than 1,600 of these GTs have been supplied for industrial use to 40 countries. In the event of a shutdown, the unit can be restarted at any time to restore power quickly, as it has no hot-lockout restrictions. With an output between 3.9 and 6.4 MW, the A05 is used in applications, such as co-generation, offshore platforms and emergency power. The LMS100 can meet strict emission requirements at 25% power, and use waste heat from the intercooler for desalination. Aeroderivative Gas Turbine Support, Inc. (AGTSI) is a worldwide supplier of gas turbine parts located strategically in Boca Raton, Florida near three major airports including Miami’s airport. It advises users to protect inlets during downtime to avoid corrosion that can lead to removal problems and, ultimately, higher scrap rates of parts, such as compressor vanes. “We tend to see more thermal distress and material fatigue in such operations.”. Gas turbines have a long history of use with successful commercial applications since the late 1930’s. However, adherence to good operations and maintenance practices, added Conway, will avoid many common reasons for rejection and replacement of high-cost gas generator components, including: • Air inlet filtration condition and integrity of housing structure to minimize airborne contamination and risk from foreign object damage, • Routine maintenance of the fuel skid, conditioning units and oil system to ensure each system will meet OEM specification and does not introduce contamination or degrade critical components, • Regular washing and borescope inspection to monitor and report component degradation and to facilitate consultation with a specialist maintenance provider as necessary. As a result, more units are becoming peakers. A gas turbine is a type of internal combustion engine that converts chemical energy of fuels into mechanical energy in the form of rotational power. Use cases include support to grids with growing renewable sources, power industrial needs, peaking power for hot days or as reliable baseload to an isolated power island. The LM6000PF+ aeroderivative gas turbine combines our latest innovations with the best proven technologies and operating experience from more than 5,000 aircraft engines with over 450 million flight hours, and 1,300 LM6000 units with over 40 million operating hours in the last 30 years. Aeroderivative gas turbine Levels 1-5 GE and Rolls-Royce OEM compliant tools ensure your engines are on-line for the longest time, and when out-of-service, returned online in the shortest possible time. A three-trailer design enables commissioning in less than 11 days from parking the first trailer. It is said to meet 15ppm NOx emission requirements in gas operation, and can switch between different fuels at full load without interruption. Gas turbines that are not being used in aircraft or other aviation related devices use some of their power to source the compression device. document.write('<'+'div id="placement_443273_'+plc443273+'">'); It features increased core speed, exhaust temperature, simple cycle output, and combined cycle efficiency. “The compact design of the SGT-A45 is especially wellsuited for mobile power, for example in Africa or Southeast Asia, allowing us to capture a quickly growing market segment,” said Karim Amin, Head of Sales and Customer Operations at Siemens Power and Gas Division. With up to 45% efficiency compared to up to 35% for heavier GTs, these turbines are often seen as a good choice in smaller-scale (up to 100 MW) energy generation. Genuine Aeroderivative Gas Turbine Parts + Services Our extensive stock of Pratt & Whitney aeroderivative gas turbine parts is guaranteed the highest quality with … Another 14 units are either in the installation or commissioning phase. Today, these are typically designed to make use of a combustion process that is continuous as opposed to the intermittent nature of automotive combustion engines. Indust r ial ized and packaged with a new free turbine, the a e r o d e r i v a t i v e FT4000 gas turbine can be configured as either a single- engine unit (one gas turbine driving one 60 to 70 MW electric generator) or a twin-engine unit (two gas turbines driving a common 120 to 140 MW electric generator). “Prior to storage, routine procedures such as compressor washing, drying, inhibiting of fuel, oil and hydraulic systems will avoid considerable damage from stand still corrosion,” said Conway. Over 130 of these mobile FT8 units have been sold worldwide. The GT can generate full power in less than 8 minutes from start without need for auxiliary systems to maintain the unit in an operationally ready standby mode. The company is available to its customers 24 hours a day, 365 days per year maintaining “on call” service for … Also, some of today’s designs will employ multiple shafts as well as hundreds of blades. It is available in two 34 MW and 38 MW variants. Aeroderivative Gas Turbine - AeroAdvantage. It also boasts a major gas turbine repair and overhaul business. The workshop, though, can advise on probable cause of wear, corrosion and oxidation. As such, the global aeroderivative GT market is expected to grow at an annual growth rate of nearly 5% between 2016 and 2020, according to a 2016 study by Technavio. The aeroderivative gas turbine is a lighter weight variation of a gas turbine. The resulting flow of hot air is used as the source of powering the turbine. BY DREW ROBB, A Sulzer technician inspects a GE LM5000 aeroderivative gas turbine. FT4000® Gas Turbine Package Utilizing core technology derived from venerable Pratt & Whitney® PW4000™ turbo-fan engines, the FT4000® SWIFTPAC® gas turbine package provides reliable peaking and base load power with a relatively compact footprint and rapid ramp-up.. learn more Aeroderivative gas turbines use anti-friction bearing. Four available models are based on SAC and DLE in lower and higher power versions. The company leverages technology derived from Pratt & Whitney aircraft engines. Its free power turbine can be operated in 50 Hz or 60 Hz without a gearbox. The power that is left goes to drive an energy conversion device, which could be a generator or perhaps a propeller on a vessel. All of our in-stock aeroderivative parts are available for immediate delivery with capabilities to ship parts 24 hours a day, 7 days a week, 365 days a year. Key markets include onshore and offshore power generation (peaking, base load, cogeneration, combined-cycle), repowering to replace old gas turbines and mechanical drive. Aeroderivative Gas Turbine Support, Inc. (AGTSI) maintains one of the industry’s most extensive inventories of industrial, land and marine parts and components. It is also attracting interest for LNG compression and barge applications. gas turbine LM6 series aeroderivative for power generation mechanical drive Rated power kW: 45,000, 54,000 kW A great machine continues to get better The LM6000-PF+ aeroderivative gas turbine with DLE combustion technology can offer the best cost per kilowatt in its power class. Based on the CF6-50 aircraft engine, over 100 of these 38 MW turbines were produced. “In ideal circumstances, the engine should be installed within a purpose-built container, capable of nitrogen purge.”. Sulzer maintains and repairs the LM5000 under license from GE. It is often deployed for renewable peaking power and electrical grid stability. Our heavy-duty and aeroderivative gas turbines are proven performers in a range of applications, capable of achieving world-class efficiency with next-generation capabilities. GE’s fleet comprises 62 units operating in 10 countries (all simple cycle except five). Stay online with the right tools, right when you need them Entire communities count on the power and reliability of your gas turbine engines. Coupled with its aero core, it can survive the changing environments of a barge while providing maximum power in a space-constrained area. Between them, they employ 500 people. Gas turbines fueled by integrated biomass gasifiers are a promising option for base load electricity generation from a renewable resource. One area of widespread use of aeroderivative gas turbine technology is in aviation where the power harnessed by the turbine is used to power a compressor. These units have accumulated over 19,200 hours and over 1,575 cycles. The aviation heritage of the LM6000 originates from GE’s CF6 jet engine found in the B747, B767 and Airbus A330. The 38 MW variant introduces a gas generator upgrade through a compressor zero-stage, to deliver about 10% more power without any change in the turbine section, and with the same firing temperature. The FT8 gas turbine is a derivative of Pratt & Whitney’s JT8D aircraft engine. The SAC (single annual combustor) uses water for emissions control and has accumulated 26 million operating hours. Siemens has renamed the entire Rolls-Royce aeroderivative turbine line to align with the latest Siemens naming conventions. “Aeroderivative gas turbines used as peakers will have multiple starts and shutdowns, fewer operational hours and, as a result, maintenance needs are different,” said Gregor Stöcker, Director Sales Industrial Gas Turbines, MTU Maintenance. Production shipments began in May 2017. Aeroderivatives serve market segments that value specific-product attributes. FLEXIBILITY, FOOTPRINT AND RELIABILITY ADVANCE AERODERIVATIVE TURBINES IN A CHALLENGING MARKET The LM5000 uses roller and ball bearings, which have strict inspection criteria. The LM9000 configuration can be laid out to minimize its area footprint for maximum power density. GE offers a variety of upgrade solutions depending on the operating needs from the unit. Gas turbine innovation, with or without hydrogen, View past issues of Turbomachinery International Magazine, Subscribe (both print and online options available), Register for webcasts (live and on-demand). Based on the Industrial Trent 60, it can shift between 3,000 and 3,600 HP without a gear box. GE backs up its fleet with a worldwide network of service centers. PGT25+G5 Mechanical drive These units have essentially one moving part, however, the complexity is in the high degree of exactness required in the manufacturing and the materials used in their construction. Introduced in 1971, it has three models with multiple configurations and output ranging from 22 MW to 37 MW. The FT4000 SwiftPac GT package is the latest power generation solution offered by PWPS. This includes two Level 4 Service Centers in Houston, TX and Brindisi, Italy and six Level 2 service centers. 05 Million in the year 2019. var AdButler = AdButler || {}; AdButler.ads = AdButler.ads || []; Its output ranges from 44 MW to 57 MW in simple cycle and 117 MW to 149 MW in 2×1 combined cycle operation. Aeroderivative gas turbines are generally based on existing aircraft gas turbine engines, and are smaller and lighter than industrial gas turbines. Clutchless synchronous condensing can restore full power in less than 10 minutes. It deals with three Siemens SGT-A30 RB (formerly the Industrial RB211 24G) DLE gas turbine generators. Features include lightweight modular construction, ease of field repair, and use of multiple fuels. GE enhancing support for aeroderivative gas turbines in Australia 11.9.20 GE has announced the opening of its new Perth Aeroderivative Services Level 2 … Its controls are based upon Woodward GAP and HMI software built on the Woodward MicroNet Plus hardware platform. Despite being classified as a gas turbine, the fuel source for the aeroderivative turbine is not really gas. Boca Raton, FL 33487, Understanding Aeroderivative Gas Turbines. In Conway’s experience, most operators maintain their equipment diligently throughout its service life. It can run on liquid, natural gas, or LPG, has optional black start capability and can be operated remotely. A multistage free power turbine (FPT) sits on a separate shaft to drive compressors for liquefied natural gas (LNG) applications or generators. The FT8 SwiftPac can be installed in less than 30 days. This option boosts the unit’s power output particularly in warm climates. The Siemens SGT-A65 is a triple-shaft GT with three independent spools running inside each other. It is 30% lighter than its Industrial RB211 predecessors. This, he added, is being driven by more use of solar and wind. The heavier industrial models designed for land use are referred to as “frame” machines. The package design includes two trailers. Primary markets include oil & gas for onshore and offshore applications, and power generation in applications ranging from peaking to combined heat and power (CHP). There is also a healthy aftermarket served by the OEMs, as well as companies such as Sulzer, EthosEnergy, RWG, and MTU Maintenance. Its Long-term Service Agreement (LTSA) provides scheduled maintenance, unscheduled maintenance, spare parts, annual audits, and site support. The second trailer carries the 15 kV switchgear, control system, operation panel, protective relays, batteries and charger, motor control center, and the hydraulic start package. Over 1,200 of these units have been sold. The company has also compiled best practices based on the LM5000’s repair history. Steam injection can be adjusted to meet varying process steam or electrical requirements, depending on the application. Plants are taking a longer time between removals and maintenance due to lower running hours, said Tom Watson, EthosEnergy’s President of Accessories and Components. 1200 S. Rogers Circle It has repair licencing agreements with GE, AA TECH, Parker, Titeflex Smiths, Woodward and Hydra Service. Its two launch customers included a SwiftPac 120 in the United States and a SwiftPac 60 in Argentina. The LM2500 is an aeroderivative based on the CF6 aircraft engine. Fleet reliability is 99.7% with availability at 97.3%. The General Electric LM2500 is an industrial and marine gas turbine produced by GE Aviation.The LM2500 is a derivative of the General Electric CF6 aircraft engine.. It has a two-stage LP, seven-stage IP and four-stage HP compressor. The SGT-A45 TR aeroderivative gas turbine (Figure 1), which was unveiled at a ribbon-cutting ceremony in Houston on November 1, is the newest offering in Siemens’ expanding gas turbine … Overall, the engines have chalked up more than 650,000 hours and 84,000 starts. About Aeroderivative. The LM5000 has a twin-spool generator driving a free-power turbine. With more than 5,000+ CF6 engines delivered and 400+ million operating hours, the LM6000 now has more than 1,270 units delivered and 37 million operating hours. Aeroderivatives are used in electrical power generation due to their ability to be shut down and handle load changes more quickly than industrial machines. Aeroderivative gas turbines GTs) are a popular choice for energy generation thanks to their reliability, efficiency and flexibility. GE also offers a mobile version known as the TM2500. Derived from the GE90 jet engine used on the Boeing 777, it can be throttled to adjust power output, and started or stopped without impacting maintenance intervals. RWG Repair & Overhauls Limited is a Siemens and Wood Group Company specializing in the maintenance, repair and overhaul of Siemens aeroderivative gas generators and power turbines. Pampa Energia in Argentina, owner of the longest running LMS100 in the fleet, just had its second purchase reach commercial operation in August 2017 The LMS100 has been used in several plants as a replacement for the Frame 9E in combined cycle operation due to its low-temperature exhaust. Aeroderivative, industrial and heavy-duty gas turbines up to 593 MW Whatever your business challenges may be, our gas turbines are precisely designed to master the dynamic energy market environment. Single-shaft and two-shaft versions are available. Suite 10 It is a flange-to-flange solution provider for that machine, which GE introduced in 1978 and no longer manufactures or supports. Historically these include lightweight, highpower density, high operational flexibility, such as fast starts and stops, and high simple cycle efficiency. It has been used for peaking power generation, industrial cogeneration, district heating, load following, mechanical drive and combined cycle. This provides FT8 fleet customers with control in the 5 to 10 millisecond range. 63 Aero Gas Turbine jobs available on Indeed.com. Asia, in particular, deploys many of these machines in power trains for Liquefied Natural Gas (LNG) plants. As a result, the LMS100 can deliver up to 115 MW of power at 44% efficiency. var plc443273 = window.plc443273 || 0; All that is required is to change the number of blades in the LP compressor. MTU Maintenance is also licensed to support the LM5000. It can operate at either 50 or 60 Hz and offers a highly flexible solution for a wide range of applications. The SGT A05 was originally based on the T-56 turboprop, used in the Lockheed Martin C-130 Hercules transport, E2C Hawkeye, P-3 Orion and other aircraft. Constraints on operator maintenance budgets is extending equipment time between overhauls TBO), he added. The DLE (dry low emissions) does not use water and has reached 11 million operating hours. Due to low commodity prices in both oil & gas and power generation, customer behavior has shifted, said Mick Conway, Business Development Manager at RWG. It has more than 2,000 aeroderivatives installed in over 50 countries worldwide. Introduced into service in 1964, it is popular in oil & gas, especially in North America where many units operate on trunk gas lines. Turbines that are used for generating electrical power can be small enough to be mounted on trucks for mobile implementations or enormous projects that require months to build. Sulzer also partners with Air New Zealand Gas Turbines (ANZGT) on maintaining and repairing this legacy turbine. Its 6FA LPC low-pressure compressor comes from the 6FA HD turbine. Key features include its CF6 jet engine core derived from the Boeing 747 and the GE LM6000. The LM6000 was GE’s first GT model to feature a battery energy storage system. With 37 million operating hours and an expansive fleet of over 1,200 units shipped, the LM6000 offers +99% operational reliability, +99% start reliability and +98% availability, according to SPS ORAP data. Siemens acquired several aeroderivatives from Rolls-Royce. It features high part-load efficiency, less than 10-minute start-up time, quick engine changeout and greater than 41% simple cycle efficiency. This Hybrid EGT enables contingency spinning reserve without fuel-burn between demand events, high-speed regulation, primary frequency response, and voltage support (-8 to +5 MVAR). Its exhaust characteristics match up with older 9Es and allow for use in existing plant infrastructures. PW Power Systems (PWPS) is a group company of Mitsubishi Hitachi Power Systems. The fleet has accumulated over 6.5 million hours of operation. Over the past two years, Sulzer has witnessed the primary driver for emergent inspections and overhauls being bearing failure. It comes with an assembled enclosure incorporating the gas generator, power turbine, inlet plenum, lube system, and exhaust stack. Known as the SGTA45, it provides 44 MW and has a twoweek installation period. Mechanical drive applications will be available in 2018. ‘Stand still’ corrosion can be a very costly in terms of component rejection. RWG recently earned a long-term maintenance support contract with Gulfstream Natural Gas System. Early recognition and regular checks are recommended for continued operational performance and reduced costs. Under such circumstances, his advice is to not neglect regular planned maintenance despite lower operating hours. GE’s aeroderivative gas turbines show experience on a wide range of gas and liquid fuels and can be operated on many alternative fuels that are available worldwide. Run times vary per start from 2 to 4 hours in California to 54 hours in Australia. The SGT-A35 (Industrial RB211) is also heavily used in offshore oil & gas applications due to its low weight and high power density. The LM9000 is a 66 MW to 75 MW unit that operates at 43% simple cycle efficiency. Apply to Production Supervisor, Mechanic, Senior Production Technician and more! The scope of work encompasses both infield repairs undertaken at Gulfstream’s facilities, supported by Siemens, and gas generator overhauls performed at RWG’s workshops in Aberdeen. Water injected and dry combustor options are available. This enables its technicians to inspect and overhaul these gas turbines in a timely manner. The company offers a wide range of commercial models, including time and materials, fixed-price and fixed-scope options, and repair rather than replacement service for high technology gas generator components and ancillaries. Badly packaged items sent for maintenance can lead to transit damage, he said. It has its headquarters in Aberdeen, Scotland and regional service centers in Houston and Kuala Lumpur. Its LMS100 is a fusion between aero flexibility and heavy-duty power output. Its focus is to provide tailored work scopes to operators that optimize performance, mitigate risk of unscheduled maintenance, and lower lifecycle cost. It is popular in mechanical drive and offshore power generation applications, as well as CHP and district heating. Features include an integrated lube oil system, quick-disconnect cable, a combined GT and exhaust enclosure, minimal foundation requirements, and a compact layout. The turbines are also popular due to their fuel flexibility — they allow a combination of natural gas and liquid fuel operation. Aeroderivative gas turbines usually weigh considerably less than those designed for land use. The three machines are in operation at Gulfstream’s Compressor Station 410 located at Coden, Alabama. Based on advanced aircraft engine technologies and materials, they are significantly lighter, respond faster and have a smaller footprint … As a result, Sulzer has broadened the supplier lists for consumable items for this power turbine to help reduce overhaul cost for end users. Any complex machine no longer in use will deteriorate quickly, especially in high humidity environments, he said. It also boasts a global network of level II service centers, including locations in Australia, Brazil, Norway, Thailand and the U.S. With over 20 years’ experience in working with LM series GTs, MTU Maintenance offers parts supply, test cell facilities, engine exchange and leasing, training and familiarization as well as package services. The first contains the GT, electric generator, exhaust collector, diffuser, and engine lube oil system. Aeroderivative gas turbines are, as their name describes, adaptations of gas turbines used in aircraft (“jet” engines). Executive Summary The Global Gas Turbine Market was valued at USD 17050. It is critical that an operator applies the same diligence to temporary storage conditions, as they do under a turbine’s normal operating environment. With a footprint of 72 feet by 53 feet, little site preparation is required. The Hybrid EGT consists of a lithium ion 10 MW battery, GE Brilliance 1.25 MVA Inverters, and OpFlex Controls upgrades. Further features: 15 ppm NOx capability; cold start to full power in 5 minutes; gas and liquid dual fuel capabilities; and a compact footprint, highpower density and low-noise capability. The hot air that exits the turbine is used for thrust by forcing the air into the atmosphere via an exhaust nozzle. The LM1600 is a simple-cycle, two-shaft high-performonce engine and delivers 15 MW with a thermal efficiency of 37%. This package offers 30 MW or 60 MW. © 2019 MultiMedia Pharma Sciences LLC | All Rights Reserved. It has been in production since 1991 and over 500 units are in operation worldwide. The LM6000 features a two-spool optimized design resulting in lower operational maintenance cost in comparison to three-spool designs. • Timely intervention or rejection of equipment in accordance with the OEM service manual or condition based reports. In the U.S., aeroderivatives are mainly being used in peaker operations, or to compensate for fluctuations in the grid caused by renewables or extreme weather conditions. The power increase is achieved through higher core flow and compressor efficiency, rather than over-firing. This mechanical energy can be used for powering various industrial processes. if (!window.AdButler){(function(){var s = document.createElement("script"); s.async = true; s.type = "text/javascript";s.src = 'https://servedbyadbutler.com/app.js';var n = document.getElementsByTagName("script")[0]; n.parentNode.insertBefore(s, n);}());} The GE portfolio of aeroderivative gas turbines features highly flexible and mobile technologies for customized solutions to a wide variety of applications. Emissions control and has reached 11 million operating hours on operator maintenance budgets is extending equipment time overhauls! 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