GAS, STEAM & HYDRO TURBINES ENGINEERING HUB

Siemens Gas Turbine SGT-200 Power output: ISO 6.75 MW(e) / 7.68 MW The robust and compact industrial gas turbine SGT-200 offers a power output of 6.75 MW for the single shaft and 7.68 MW for the twin shaft configuration. The SGT-200 is designed to burn a wide range of gaseous and liquid fuels. It is available as a factory assembled package and provides an excellent power-to-weight ratio. The single-shaft industrial gas turbine SGT-200-1S is an efficient unit used for industrial power generation in the following fields of application: .simple cycle applications .combined cycle applications .combined heat and power (CHP) power generation for the oil and gas industry, on offshore platforms and FPSO (Floating Production Storage and Offloading) vessels The twin-shaft industrial gas turbine SGT-200-2S is a proven unit for mechanical drive of compressors and pumps, primarily for the oil and gas industry: It is designed for applications where speeds and loads var...

Siemens Gas Turbine SGT-100 Power output: ISO 4.35 MW(e) up to 5.25 MW(e) The SGT-100 is an industrial gas turbine with a power output range from 4.35 to 5.25 MW. It offers simple construction along with the latest technology in a compact package. The SGT-100 is available in both single- and twin-shaft configuration. The single-shaft industrial gas turbine SGT-100-1S is an efficient unit used for industrial power generation in the following fields of application: .Simple cycle applications .Combined cycle applications .Combined heat and power (CHP) Power generation for the oil and gas industry, on offshore platforms and FPSO vessels (Floating Production Storage and Offloading) The twin-shaft industrial gas turbine SGT-100-2S is a proven unit for mechanical drive, primarily for the oil and gas industry: It is designed for applications where speeds and loads vary. The SGT-200-2S can operate over a range of different speed and load demands. Fields of application: .Drive solution for pumpi...

New materials are making gas and steam turbine blades ever more resistant to heat and corrosion. This results in higher efficiency and lower fuel consumption, thus helping to cut environmental pollution. (A 300-µm coating developed by Dr. Werner Stamm (left) increases the service life of turbine blades, including those on the world’s largest gas turbine) As every cook knows, a pinch of salt can transform a bland dish into a tasty one. But just how big that pinch should be is usually a question of experience, and sometimes it has to be mixed with other spices to get the right taste. The lesson isn’t lost on Dr. Werner Stamm—the star chef of materials research at Siemens Power Generation (PG) in Mülheim an der Ruhr, Germany. Stamm is always thinking up new "recipes" for which he’s never received any cooking awards, but instead 52 patents and the title "2006 Inventor of the Year." That’s because his recipes help make gas turbine blades more resistant to heat and corro...

Unmatched Efficiency The world’s largest turbine, with an output of 340 MW, will enter trial service in November 2007. In combination with a downstream steam turbine, it will help ensure that a new combined cycle power plant achieves a record-breaking efficiency of more than 60 % when it goes into operation in 2011. Materials for the Environment – World’s Largest Gas Turbine After assembly at Siemens’ gas turbine plant in Berlin (above), the world’s largest gas turbine hits the road. Bottom: The turbine arrives on a flatbed trailer at its destination Residents of the town of Irsching in Bavaria, came out in droves this year to witness the traditional raising of their white and blue maypole. Three weeks later, they appeared in droves again—this time out of concern for the pole, as an oversized trailer had shown up carrying a new turbine for the town’s power plant. The residents were worried that the turbine, which measured 13 m in length, five meters in height, and weighed 444 t, could...

Four processes occur in gas turbine engines, as illustrated above. These processes, first described by George Brayton and called the Brayton cycle, occur in all internal combustion engines. The Brayton steps are as follows: > Compression occurs between the intake and the outlet of the compressor (Line A-B). During this process, pressure and temperature of the air increases. > Combustion occurs in the combustion chamber where fuel and air are mixed to explosive proportions and ignited. The addition of heat causes a sharp increase in volume (Line B-C) > Expansion occurs as hot gas accelerates from the combustion chamber. The gases at constant pressure and increased volume enter the turbine and expand through it. The sharp decrease in pressure and temperature (Line C-D). > Exhaust occurs at the engine exhaust stack with a large drop in volume and at a constant pressure (Line D-A). The number of stages of compression and the arrangement...

The balloon drawings above illustrate the basic principles upon which gas turbine engines operate. Compressed inside a balloon, as in (A) above, exerts force upon the confines of the balloon. Air, which has weight and occupies space, by definition, has mass. The mass of the air is roportionalt to its density, and ensityi is roportionalt to temperature and pressure. The ir mass confined inside the balloon, accelerates from the balloon, creating a force as it is released (B). This force increases as mass and acceleration increase, as stated in Newton's second law; force equals mass times acceleration (F = MA). The force created by the acceleration of the air mass nside the balloon results n an equal and opposite force that causes the balloon to be propelled in the opposite direction, as stated in Newton's third law. For every action, there is an equal and opposite reaction.) Replacing the air inside the balloon, as in (C), sustains the force and, although impractical, allows a lo...

Driving GE Ecomagination with the Low-Emission GEnx Jet Engine July 20, 2005 -- EVENDALE, Ohio - With its GEnx jet engine, General Electric Company (GE) engineers are introducing breakthrough combustion technology that will dramatically reduce emissions in jet travel. The GEnx engine is being developed for the new Airbus A350 and Boeing 787 aircraft. The GEnx enters airline service in 2008, and has already received more than $2 billion in orders on the strength of new technologies that make it the most fuel efficient, quiet, and low-emissions jet engine that GE has ever introduced for large jet aircraft. The GEnx is part of GE's "ecomagination" products portfolio - GE's commitment to develop new, cost-effective technologies that will enhance customers' environmental and operating performance. Lowering exhaust emissions in jet engines, especially oxides of nitrogen (NOx), will continue to be a worldwide requirement. With the GEnx, GE is at the forefront of that tec...