Being aware that, in order to satisfy the needs of developing areas far from the power nets, it is important to keep in mind concepts such as renewable energy, integrated systems and technology transfer, Orengine – GEA oriented its experience towards the design and management of systems with the appropriate quality standards to ensure the long life expected from our products. The people, always more aware of ecology, requires innovative replies above all in the field of energy production which is of continuos need. Such awareness has led people to consider with growing attention local small power generation sets, economic and clean. Special attention has been used in the fields of hydro, wind and solar power, integrated to diesel, small gas turbines and recently Biomass. Where the service required is not only the supply and erection of a single power station, our company offers its experienced engineering for feasibility studies specially oriented both to analyze the future impact in the environment and to maximize energy production. The aim of the total quality dominates the entire production cycle based on a Quality System conforming to ISO 9001.
Orengine – GEA operates in the energy business since the beginning of the eighties, developing know-how of highest industrial level. The constant evolution and development of technology have allowed our company to become an important industrial reality, one of the leaders in the field of engineering and manufacturing of systems and components for energy.
ORENGINE IN THE WORLD SOUTH AMERICA ORENGINE INTERNATIONAL, Ltd EUROPE GEA SRL AUSTRALIA TYCO TAMAR TASMANIA AUSTRALIA
QUALITY CERTIFICATIONS Our company Quality Management System is finalized to the improvement of a wide range of products and services. SOA – RINA Certification for the execution of Italian public contracts. Category: OG9 Class: IV Renewable energy design, management of the construction and start-up of turbines, regulators and electromechanical equipments for renewable energy plants. ENEL Qualified supplier
SMALL SCALE HYDRO POWER PLANTS Orengine – GEA employs new design techniques, synthetic materials and electronic technologies in the construction of small and mini power plants. This enables the company to offer a range of standardised machinery with the following characteristics: stout structure and reduced weight; minimum number of components and simplified geometry; easy replacement of series components; un-manned operation. All our design reflects decades of experience, continuous research and performance monitoring of numerous units installed world-wide. Orengine – GEA total quality program guarantees our customers a complete range of mechanical and electrical equipment featuring: exceptional stoutness and simplicity of constructions; cheap routine maintenance; short on-site erection time; great flexibility ensuring high plant efficiency; compact, simple and extremely reliable regulation system. Orengine – GEA concept of project engineering is not confined to turbines. All our plant components adhere to the latest trends in terms of structural simplicity, easy maintenance, stoutness and low cost. Limiting environmental impact is another key concern in plant design, ensuring that civil works are kept to an absolute minimum with optimal landscape integration.
TURN-KEY ENGINEERING Site-optimised installation, assistance for civil works, detailed plans and sequences for the erection of plant components : all these aspects lead to the highest possible results. Close and effective collaboration with the customers consulting engineers and with other suppliers, as well as assistance in planning ensure maximum cost effectiveness by reducing the plants time to production to a minimum. Orengine – GEA utilizes pre-assembled aggregates which are linked up in the workshop and tested to ensure total system operability before delivery. This approach simplifies on-site erection and drastically reduces civil works, leading to significant savings in terms of both time and cost.
PELTON RANGE OF STANDARD PRODUCTION FRANCIS KAPLAN CROSS FLOW
PELTON TURBINES These turbines are particularly suitable for exploiting plant conditions where there is a low flow utilisation as compared with the water head. Situations where reaction turbines would have excessive speed and would encounter particularly serious problems such as cavitation.
PELTON TURBINES Each injector is also capable of regulating its own portion of flow capacity, up to a minimum value of about 15% without creating any noticeable phenomena of load loss. The schematic figure shows that the turbine efficiency is at a constant level on the average down to very low rated flow capacities, thanks to this multiple jet inlet system. One of the most interesting aspects of the Pelton turbine is its flexibility in the presence of marked changes in flow capacity. In fact this machine consists of a flow regulating system which divides up the flow capacity into various injectors, from one to a maximum of six.
FRANCIS TURBINES These types of turbines are suitable for a wide range of water heads, normally from 10 to over 300 meters. This type of machine can also be used where the water head varies, even with percentages exceeding 50% of nominal, for lake level fluctuation or in an aqueduct due to the effect of the growing head losses from capacity used. The capacity may also change and still keep a high level of working efficiency and reliability. However, it is advisable not to go down to levels below 35-40% of the designed machine values.
FRANCIS TURBINES The Francis turbine may also be produced with a single runner or in some cases with double outlet runner, opposite to each other with a single spiral casing. In this case, the wheel will be symmetrical and each half is calculated at 50% of the total machine carrying capacity. This makes it possible to increase the speed of the machine with evident cost saving also for the generator.
KAPLAN TURBINES These types of turbines are usually used in plants using low water heads, frequently between 3 and 50 m. Our standard production includes machines capable of developing capacities starting from 2 cu.m/s. up to 40 cu.m./s. Kaplan turbines, with horizontal, vertical and also slanting centre lines, may be produced with various configurations, depending on the plant specifications. At the present, the most common ones have tubular stators or goblet shaped with free chamber, but certain kinds of plants still use turbines with a spiral shaped admission stator.
CROSS FLOW TURBINES Cross Flow turbines manufactured by Orengine are a modern version of the Banki turbine. The Cross Flow turbine was invented by an Australian engineer (AGM Michell) and patented by him in 1903. Hungarian Professor Donat Banki later refined the design. The standard models manufactured by Orengine have the following characteristics: Flow Range 20 l/s to 12,000 l/s; Head range 10m to 150m; The maximum power does not normally exceed 2,000 kW. These turbines can be manufactured with a vertical or horizontal inlet. However, the shaft is always horizontal.
CROSS FLOW TURBINES Rectangular water jets are used. The water enters the runner radially, then it passes through the runner and strikes the blades again on exit (hence, the term Cross Flow). Angular momentum is imparted to the runner on both passes. Due to the cross flow pattern of flow, potential obstructions such as leaves, ice, small stones etc. are flushed out by the water (assisted by centrifugal force), thus making the runner self cleaning. In situations where a wide flow variation is expected, the machine can be built with two compartments. The compartments are sized in the ratio of 1:2. The split compartments, in combination with control of the guide vanes, allow the flow capacity to be varied from 15% to 100% whilst still retaining optimum efficiency and reliability.
TURBINE GOVERNORS The hydraulic power units include functions such as control of valves, overspeed tripping devices, all turbine distributor maneuvres and jet deflector maneuvres in Pelton turbines. Particular advantages of these units are their compatibility with all types of hydro turbines, a simple design and the use of standard components that ensure high operating reliability, easy maintenance and availability of spare parts. Normal operating pressure for the our hydraulic power units is 50 - 130 bar. Sizing of the units is determined by the power required to shut down the servomotor: the pump size and the reservoir for the necessary hydraulic oil is dimensioned to suit each individual installation. Our hydraulic power unit provides a highly suitable solution for all hydro power plants. OTC is a complete controller that incorporates many features. It may be adopted to all types of hydro turbines, making it just as suitable for upgrading of existing plants as it is for new plants. Its main features are: Automatic frequency control; Automatic load control; Water level control; Turbine start and stop sequence.
BIOMASS POWER PLANTS Biomass is the fourth most important energy source worldwide, right after coal, petroleum and natural gas. It is used in heating (residential and industrial), cooking (especially in developing countries), transportation (fuels such as bio-diesel and bio-ethanol), and in producing electric power. A biomass energy project involves many advantages: in broad terms, it contributes to decreasing reliance on foreign countries for power; it contributes in reducing emissions of greenhouse gases (during combustion the same amount of CO 2 taken during growth returns to the environment); it could be possible to take economic advantage of a fuel that can originate, for example, from cleaning local forests, creating an incentive for integrated forest maintenance program; the above mentioned point will lead to benefits at the occupational, tourist and environmental levels; On the other hand, it must be pointed out that some disadvantages shall be considered: profitability is often uncertain and is strictly dependent on the local availability of materials and the density of connections for transportation. Dedicated crops are the most immediate answer to demands for increased power biomasses. The main point consists of creating an alliance between the power production process and agriculture, in order to promote the Short Rotation Forestry (SRF) biomasses crops.
BIOMASS POWER PLANTS 7 MWe COGENERATION POWER PLANT
RESEARCH & DEVELOPMENT Tomorrow is shaped by the today choices. Research and development has allowed us to reduce costs and time of development respecting the environment. Research and development carries out mechanical and other standard and special tests of turbine and its components in order to design turbine with best characteristics.