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Building upon the GT26 inherited from Alstom, the GT36 gas turbine (GT) is said to offer 41% efficiency at full or part load. In addition, it provides low emissions, a high turndown capability and fuel flexibility. With a power output of 340 MW at 60 Hz (500 MW at 50 Hz), its exhaust mass flow is 700 kg/s and its exhaust temperate is 630°C. NOx emissions are less than 50 mg/Nm3 and CO less than 10. In 1 + 1 combined cycle duty, output rises to 500 MW. In a 2 + 1 configuration, output rises to 1,004 MW. In both cases, heat rate is 5,873 Kj/kWh and net efficiency is 61.3%.
Sequential combustion technology allows a high turndown. This is said to enlarge the complaint operation window. The GT36 can also switch between two modes while the plant is online. Performance Optimized Mode produces maximum performance and output. Extended Lifetime (XL) Operation Mode allows for longer service intervals as a means of reducing maintenance spend. The first unit of Ansaldo Energia’s HClass GT36 has successfully completed the first phase of a validation program at the Birr Test Power Plant in Switzerland. The test power plant is a full-scale simple cycle power station built in 2015/2016 that can test the machine under real power plant conditions. The tests confirm high performance, low emissions over the entire load range, and the wide operation window of this engine. The test program included stress testing of the two stages of the sequential combustion system, part and full load mapping, transient operation and performance testing. The validation engine is equipped with more than 3,000 measurement points, including a telemetry system which transfers more than 500 measurements from the rotating parts. The GT36’s combustion system has already been tested as
The GT36’s combustion system has already been tested as a single component in a combustor test rig, at full size and under full massflow, at the DLR (the German Aerospace Center) in Cologne since 2013. The test results reported for the GT36-S6 (60Hz rating) confirmed power output above 340 MW at 41% efficiency. In combined cycle this corresponds to performance exceeding 500 MW at 61.3% net efficiency in ISO conditions and 720 MW at 61.5% efficiency for the GT36- S5 (the 50Hz scaled version). www.ansaldoenergia.com
New Siemens aeroderivative
The Siemens SGT-A45 TR mobile unit addresses the growing market for fast power. With an electrical generating capacity of up to 44 MW, this aeroderivative gas turbine (GT) is packaged for rapid deployment and can be installed in less than two weeks. Its design features power density, fuel efficiency and operational flexibility. This makes it beneficial for those with urgent power needs or in regions with less developed infrastructures.
The GT core uses components from the Siemens Industrial Trent 60 that have been adapted to a proven free power turbine. When required, the unit can be flown as air cargo to its installation site. The SGT-A45 TR GT can run on gas or liquid fuels, and transition smoothly between both fuel types. Low NOx emissions can be achieved with optional water injection, which also boosts the unit’s power output particularly in warm climates. www.siemens.com
Reliable steam turbine control
Voith’s range of digital steam turbine controllers has been extended with the new Tur- Con DTc. It can be set up quickly to perform all standard control functions on mechanical-driven machines and generators. The new controller is suitable for steam turbines of all power classes. The TurCon DTc consists of two assemblies, a 7-inch touchscreen control panel with integrated CPU and a remote I/O unit. It can simultaneously control up to 4 HP and 2 LP control valves. There is no need to adjust the valves mechanically using a camshaft or a separate valve coordinator (split range). The TurCon DTc archives the last 1,000 status, warning and alarm messages with a time stamp, allowing process flows and malfunctions to be traced. www.voith.com
Ultrasound Testing and Machinery Lubrication are elements of a successful asset condition management program. LUBExpert combines SDT’s measurement capabilities to create an on-board lubrication and greasing assistant. Algorithms guide lube-techs before, during, and after re-greasing resulting in optimal lubrication parameters. With a few machine parameters, LUBExpert monitors each stroke of grease and its effect on bearing friction and temperature. Before and after bearing conditions are reported with a “GOOD,” “BAD,” or “SUSPECT” status report. The LUBExpert package includes the Ultranalysis Suite to design specific lubrication routes and set intervals based on either calendar or condition. You can trend friction levels before and after lubrication, and generate grease consumption reports for each asset or the entire plant. www.ludeca.com
The Analog Torsional Vibration Sensor (ATVS) addresses the industry’s need for an analog sensor that provides reliable data to identify torsional vibration without the installation of encoders, slip rings, and telemetry. It requires no modification to the shaft or rotor. It can be installed at any location where the shaft is exposed. It is unaffected by dust, dirt, oil, water or grease. It can be used to identify torsional natural frequencies, for torsional load monitoring, for rotor condition monitoring and other functions. www.HorvathResearch.com
In the age of the Industrial Internet of Things (IIoT), demands for better machine-to-machine communication are more frequent than ever before. Modern plants require multiple communication ports, integrated tools, and an ever-evolving list of communication protocols to meet machine and process needs of both today and tomorrow. With new updates, Schneider Electric’s Modicon M241 PLC delivers unlimited access to a machine via Ethernet to improve communication and simplify maintenance decisions. Updates include direct mounting onto the PLC reduce wiring, the ability to send email directly from the and Windows 10 compatibility. www.schneiderelectric.com
Step up gearbox
The Reintjes BAE HybriGen Zero system is a hybrid, step-up gearbox for retrofit which is said to lower operating costs, emissions and maintenance costs. It features a front-engine mounted gearbox combined with a permanent magnetic electric generator up to 300 kWe. With its high torque, this electric motor and generator can also be used as a starter to substitute the air-starting system. It has an integrated multi-disc clutch, a flexible coupling on input side, a bell housing for direct generator mount and a shaft for direct engine connection. www.reintjes-gears.de
Best practices book
More Best Practices for Rotating Equipment by Michael S. Forsthoffer of Forsthoffer Associates presents 200 best practices for rotating equipment. Each chapter addresses a different type of equipment, and the volume covers all phases of work with rotating equipment, from pre-commissioning through maintenance. Its troubleshooting approach teaches the reader methodologies for installation, operation, and maintenance of equipment. Reliability optimization is also addressed. Enter code ENGIN317 for up to 30% discount and free shipping. www.elsevier.com/books/isbn/9780128092774
TMEIC low voltage drive
Toshiba Mitsubishi-Electric Industrial Systems Corporation (TMEIC) announces the TM10e2 Dual Purpose (DP) Drive, suitable for modernization projects to upgrade from a legacy DC system to AC. It can power and control either a DC or AC motor. The DP drive uses standard TMdrive-10e2 drive power and control hardware for both AC and DC motor control. When DC motors are upgraded to AC, the drive can be reconfigured for AC motor control by switching the firmware from the DC to the AC motor control function set. www.TMEIC.com