Delivering cutting-edge turbine and generator technologies 2 Doosan Delivering cutting-edge turbine and generator technologies 3 Doosan - More than innovation Doosan is a modern and dynamic supplier of high performance steam turbines, generators, and heat exchangers that rank amongst the best products of their kind in today’s global marketplace. Our employees draw upon their experience to realize innovation and a customer friendly approach to find and offer the best solutions. Our expertise is built on over 110 years We are driven by the desire to provide our of experience in the manufacture and customers with optimum efficiency, high continuous development of steam reliability, and operational flexibility—all at turbines. The production knowledge we’ve a reasonable price. Our technology covers accumulated is incorporated into our all fuel types from fossil fuel and biomass product designs today, helping us deliver to nuclear and renewables. By covering reliable, efficient, and innovative turbine every possible detail, we design our technologies. turbines to exceed your expectations. Global interest in Doosan turbines is growing every year, resulting in a rapid Doosan offers a wide range of increase of our market share. Today, we are Whatever the technologically advanced turbine designs, a respected and sought-after supplier of technological products, and services for the energy steam turbines from 10 MW to 1,500 MW and commercial generation field such as equipment for customers and plants around the world. supply of turbines, generators, and heat requirements, Our generators are the most up-to-date exchangers, turbine generator sets, turbine Doosan can help. machines of their kind, utilizing the latest islands up to turbine machine halls, long- technology and providing incomparable term service, and retrofitting programs. quality with ratings from 100 MW to We upgrade our own turbines with cutting- 1,500 MW. edge technology, as well as non-OEM turbines that utilize Doosan components. We conduct our business based on a customer-oriented approach: we not only provide technological solutions, but also We are driven by the desire support ECA financing for our customers. to provide our customers with: In Plzen and Changwon, Doosan´s global R&D Center, with head office in Plzen, we continue to invest considerable resources into the development of our products and systems. Optimum High Operational efficiency reliability flexibility all at a reasonable price 4 Doosan Delivering cutting-edge turbine and generator technologies 5 Steam turbines As a specialized steam turbine supplier, we achieve world-class performance, efficiency, reliability, and maintainability of Doosan steam turbines through effective design and quality manufacturing. Our steam turbine technologies are constantly evolving to meet the changing needs of our customers. We invest in R&D to continuously enhance the construction of each component, with the ultimate goal of increasing turbine efficiency, lowering fuel consumption, and reducing emissions for minimum impact on the environment. Our technologies provide: Optimum Long-term Shorter start-up exploitation of sustained times through cooling conditions efficiency a more flexible at the turbine through unique thermal design outlet design features 6 Doosan Delivering cutting-edge turbine and generator technologies 7 Industrial steam turbines Doosan industrial steam turbines are flexible units that meet the requirements of even the most complex processes in a range of industries, from metallurgy, chemical, pulp and paper, to sugar mills, local heating from cogeneration units, and many more. The turbines are constructed as The construction of these turbines allows At Doosan, we don’t classify turbines as single-casing, high-speed turbines, for the application of one or more controlled industrial merely according to their output. either condensing or back-pressure, in a steam extraction systems, and a radial Instead, we consider the industry and compact configuration. Single casing steam or axial outlet into the condenser. These process in which the turbine is going to be turbines are usually coupled to the turbines are supplied to the construction site employed, so that even a medium-output generator via gearbox. assembled, which simplifies and shortens turbine with industrial steam extraction can their installation. be regarded as industrial. Indicative Range Indicative Output (MW) Model Speed (RPM) Steam Parameters Configuration up to 10 20 30 40 50 60 70 DST-V Variable speed acc. to request DST-G10 > 6,500 140 bar, 540 °C from 4,000 ~ DST-G20 140 bar, 565 °C to 6,500 DST-S10 3,000 / 3,600 165 bar, 580 °C DST-V – Variable Speed Driver Steam Turbines DST-G – Industrial Steam Turbines Connected Via Gearbox DST-S – Power Generation Synchronous Steam Turbines 8 Doosan Delivering cutting-edge turbine and generator technologies 9 Turbines for medium and large power output Doosan medium and large We can tailor our wide range of medium output steam turbines for and large output steam turbines to fit the power generation application requirements of your project. • One, two and multiple-core units, with are designed primarily with the Doosan follows the principle that a turbine’s Outlet casings for condensing turbines differ or without steam reheating requirements of utilities and flow part is always designed according to only according to the standard modular heating facilities in mind. • Speeds of 3,000 rpm or 3,600 rpm the specific requirements and conditions last stage blade. The arrangement and of each individual project. To achieve the performance of steam valves and bearing • Pure condensing, condensing-extraction, maximum possible efficiency, we combine stands are also fully standardized. back-pressure, or back-pressure-extraction our modular structure with operationally • Radial, lateral or axial outlet into the verified nodes. condenser Indicative Speed Indicative Output (MW) Type Range Steam Configuration Type (mm) (RPM) Parameters up to 100 300 500 700 900 1100 1300 1500 1400 1300 3,000 / 3,600 165 bar, 580 °C Single-Casing 1200 1100 DST-S10 1000 3,000 / 3,600 180 bar, 580 °C Double Casing 900 800 HIP Combined 700 3,000 / 3,600 260 bar, 600 °C DST-S20 + LP 600 500 300 bar, 400 3,000 / 3,600 HP + IP + LP DST-S30 610 / 621 °C 300 200 Half / Full Nuclear Steam Saturated steam 100 DST-N speed Turbines 0 DST-S – Power Generation Synchronous Steam Turbines DST-N – Steam Turbines for Nuclear Power Plant 10 Doosan Delivering cutting-edge turbine and generator technologies 11 Beyond technology, customer friendly Doosan steam turbines are Delivering high efficiency Advanced sealing technology Technology to meet all customer’s needs based on a modular design that Advanced aero blade design Sealing technology is very important for Doosan sides with our customers, listens to incorporates operationally proven Doosan has provided customized solutions modern steam turbines in terms of performance. your opinions, and creates superior designs to elements, differing only in flow- in both impulse and reaction technology for Doosan’s advanced sealing technology can meet all your requirements. maintain minimized operational clearances part dimensions, to provide over a century. Drawing upon our wealth of Using welded rotors allows us to manufacture and reduce leakage losses. customers with reliable solution. experience and professional knowledge, we very large low-pressure turbine rotors and are able to provide advanced blades with We optimize our designs to meet We provide the most optimized sealing improve their dynamic behavior in operation. three-dimensional design. This enables us technologies-brush seals, abradable coating, They also enable fast start-up and loading by individual customer requirements to deliver the highest efficiency and years of retractable seals, and honeycomb seals-to reducing stress levels compared to monoblock by means of a suitable combination quality performance. realize remarkable efficiency improvements. rotors. Doosan developed special technology of standardized modular elements Our advanced blade is designed with for heterogeneous rotor welding to combine and tailor-made design. optimized reaction and stage load level materials with optimum properties in each through the flow path of steam turbines. Maximizing customer’s value section of the rotor flow path; this produces the creep resistant materials in the front hot Customized solutions section and ductile high strength materials at Doosan provides our customers with a “cold end.” High power output turbines can wide spectrum of technically progressive then be designed in a single casing compact and economically effective steam turbine arrangement. solutions to meet all the specific conditions of individual projects. The assembled diaphragm consists of inserted nozzle blades into the outer and inner rings, which are mechanically secured Steam turbine Controlled by pins to minimize deformation and improve Conventional connected diaphragm design manufacturing accuracy and the finish steam turbine by clutch for for combined surface. This also enables us to achieve the design combined heating heating power highest flow path efficiency. power plant plant Side exhaust Axial exhaust steam turbine steam turbine design design Major milestone of Doosan steam turbine 1904 First steam turbine system Rateau Škoda Works (Czech) 1932 First 23MW reheating steam turbine Trebovice (Czech) 1965 200MW steam turbine Ledvice (Czezh) 1976 220MW nuclear steam turbine