Converteam, a specialist in power conversion, has won a contract for electrical equipment and instrumentation for three 800-tonne capacity offshore wind turbine installation cranes from GustoMSC in the Netherlands.
Complete drives and automation systems from Converteam will constitute the central components for the operation of the innovative GLC-800-ED cranes, which will be installed on NG-9000C-HPE wind turbine installation jack-up vessels with a length of 130 metres.
The 800-tonne capacity cranes are designed to sit on the jackhouse, freeing up useful deck space and enabling the vessel to transport ten complete wind turbine sets in one haul. GustoMSC claims that its new leg crane series will establish a new standard across the booming offshore wind turbine installation market.
The Converteam 1600 kW liquid-cooled drive, ProCraneMC, is designed to deliver a system featuring extreme high power density, which fits perfectly into the tight electrical room.
Converteam’s involvement extends to the LV switchboards, motors, control/automation, crane management system and DNV certification. The packages are due for delivery in early 2011.
As a specialist for onshore and offshore cranes, Converteam has aimed to establish itself over the years as an independent supplier of electrical systems for the wind, solar and wave energy segments.
With three cranes already on order for Drydocks World South-East Asia and Lamprell plc, GustoMSC plans to build many more of the GLC-800-ED series to meet a strong market need for this kind of vessel, said the firm. The few similar cranes that are currently available are insufficient to help meet the huge renewable energy targets set by European governments, said GustoMSC.
Thousands of wind turbines will be installed in the North Sea over the coming years, in a water depth of over 40 metres. Such challenging construction work requires special crane jack-up vessels, which can carry out a high number of reliable installations even under extreme weather conditions.
Emerson wins a $28m automation contract to modernize 100 hydropower turbine generators at nine plants in Ukraine
UkrHydroEnergo, the main hydroelectric generating company of Ukraine, has awarded Emerson Process Management a $28m contract for automation systems to manage and control 100 turbine generators in nine hydropower power plants.
The contract is part of UkrHydroEnergo’s Hydropower Rehabilitation Project to upgrade and modernize the eight plants built between 1939 and 1975 that make up the Dnieper River energy cascade, plus the Dnestrovskaya hydroelectric power plant built in 1983 on the Dniester River watershed. Funding is being provided by a loan from the World Bank to the government of Ukraine.
With a total capacity of 4639 MW, the nine plants provide over 90 per cent of Ukraine’s hydropower generating capacity. Emerson’s automation technology will help UkrHydroEnergo improve process control and enhance information access.
“We selected Emerson as the project’s main automation contractor of SCADA systems for UkrHydroEnergo’s hydroelectric power plants because Emerson provides advanced technologies along with the best competitive value,” said Semen I. Potashnyk, chairman of UkrHydroEnergo’s board.
“It’s also important that Emerson has great industry expertise and experience providing similar solutions.”
All nine UkrHydroEnergo hydroelectric plants will be monitored and controlled by an Ovation system, while Ovation supervisory control and data acquisition (SCADA) technology will integrate and communicate information from all 100 turbine generators so operators can transfer data between generating sites and UkrHydroEnergo and national dispatch centres.
Other Emerson technologies for this project include Rosemount measurement instrumentation, CSI vibration monitoring systems, and AMS Suite predictive maintenance software.
In addition, Emerson will provide automation design, supply, installation and related services through its local project team in Ukraine, as well as through its hydroelectric power automation experts in Warsaw, Poland, and in St Petersburg, Russia. The company’s engineering centre in Chelyabinsk, Russia.
Clyde Bergemann completes environmental retrofit project for two of NRG Energy’s coal fired plants in New York
Clyde Bergemann EEC (CBEEC) has completed a three-year environmental improvement project for NRG Energy Inc that has reduced air emissions beyond requirements while offering lower operating costs along with minimized boiler outage time, says CBEEC.
The project retrofitted two of NRG’s coal fired power plants in New York – the Dunkirk and Huntley Generating Stations, which have a total of six boilers and a nominal generating capacity of 1000 MW – with state-of-the-art environmental control systems. The work, valued at more than $170m, included engineering, procurement, construction and commissioning.
The project was completed within tight construction and outage schedules that allowed NRG to maximize service to its customers, said CBEEC. Independent organizations have tested the systems and determined that they outperform guarantees on emissions reductions, leading to lower than expected operating costs, the company adds.
This project is the first of its kind in the United States in which trona and powder-activated carbon (PAC) are simultaneously injected into the flue gases thereby reducing sulphur dioxide (SO2) and mercury (Hg) from the plant’s exhaust.
When NRG sought to reduce emissions of particulates, SO2 and mercury at the two stations, the company selected CBEEC’s environmental control technology based on its ability to meet the emissions requirements while significantly limiting the outage time required for installation. CBEEC’s solution allowed for installation of most of the modular equipment while the power plant remained in operation.
For NRG Dunkirk station units 1 & 2, CBEEC engineered and supplied all air pollution control (APC) equipment and ancillary systems down to the foundations. The project included demolishing existing equipment, erecting new equipment, hot-to-cold ductwork conversions of all 12 air heaters, piping, low and medium-voltage electrical work, and thermal insulation.
CBEEC managed various phases of the project and contributed to meeting the critical milestones and outage dates. New emissions controls included:
- Ten pulse-jet fabric filters each with 12 shop-fabricated modules utilizing long bag technology;
- Six trona storage and injection systems including seven equipment buildings and 1830 metres of transport piping to reduce SO2 emissions;
- Two trona railcar unloading and six transfer systems and associated bulk storage silos;
- Six PAC injection systems to reduce Hg emissions;
- Three PAC unloading and storage systems;
- Ten pneumatic dense-phase ash handling systems, including 120 ash vessels;
- Two ash-storage silos and unloading systems (ash and associated storage silos);
- 12 ID fans, including 2500/1500 HP motors and VFDs;
- Over 1830 linear metres of elevated ductwork – nominal 16.5’ square, or about 42 cm squared – as well as support towers;
- Compressed air systems, including receivers and dryers;
- 14 electrical equipment buildings including all associated MCCs and VFDs (controls);
- Six integrated DCS Control Systems for all CBEEC equipment (interface);
- Other Balance of Plant items, including elevators, CFD model study for each APC/ductwork train, fire protection equipment, pipe bridges, equipment enclosures and complete structural analyses with modifications to existing boiler buildings.
For NRG Dunkirk station units 3 & 4, performance tests indicate emissions of SO2 are down by over 55 per cent and mercury levels by over 90 per cent, while particulate levels were less than 4.3 g/GJ.
All three exceed the guaranteed performance levels. Sorbent injection rates are well below those guaranteed and combined with lower than guaranteed pressure losses and power consumption will save in operating costs over the lifetime of the systems.
Overall benefits of the CBEEC solution include low operating costs, low installation costs, and a cleaner environment while burning America’s most abundant and lowest cost fuel: coal.
Tenesol launches bespoke dual-glass solar module service
Tenesol – the global solar power provider owned by the energy giants Total and EDF – has launched a bespoke manufacturing service to allow customers to tailor photovoltaic (PV) panels to meet their exact project requirements.
The new service will be available on the company’s dual-glass module range and will give architects, engineers and planners greater flexibility when designing their solar installations. “Creating advanced dual-glass PV solutions tailor-made to meet specific needs puts our customers first and means we have the flexibility to meet even the most demanding of requirements,” says Claude Escala, European director at Tenesol.
Innovation and R&D are a key focus for Tenesol. The new dual-glass modules are among the firm’s most advanced PV panels, with solar thermal properties as well as solar electric.
The BIPV laminated glass modules offered by Tenesol will be some of the most advanced crystalline BIPV panels on the market. Integrated into facades, glass-roofs and sunshades, they will be manufactured in line with new European building regulations that are intended to stimulate the combination of thermal efficiency and energy production in buildings.
In addition, they are an aesthetically pleasing way of generating renewable energy and enhancing a building’s green image. Clients are expected to include architects, construction companies, local authorities and public building owners.
BIPV laminated-glass modules are solar photovoltaic cells held between two sheets of tempered extra-clear glass. Tenesol’s new product will be compatible with all types of glass (silk printed, coloured float, etc.) for the rear side of the module.
J Murphy to link an offshore wind farm to the UK’s national grid
J Murphy & Sons Limited’s Power Division has secured a £10m ($15.8m) contract to connect power from a 250 kW offshore wind farm to an onshore substation at Sutton Bridge in Lincolnshire.
Working for its client, Centrica Renewable Energy, principal contractor Siemens Transmission & Distribution (STD) has appointed J Murphy & Sons to design, supply, construct and test 72 km of cabling for the onshore section of the project.
When complete in August 2011, the wind farm will feature between 50 and 69 horizontal-axis wind turbine generators (WTGs) and will supply electricity to the National Grid, thereby enhancing the UK’s renewable energy production. These WTGs will be located 8 km off the coast of Skegness, in depths of up to 18 metres and located in a 35 km² area.
Cabling will be installed to transport the electricity at between 20 kV and 33 kV from each individual WTG to an offshore substation located south of the wind farm.
Here the combined electricity will be transmitted via interconnecting sub-sea and on-shore cabling at between 110 kV and 132kV.
The generated electricity will be exported via cables to a new 132 kV/400 kV substation located next to the existing National Grid substation at Walpole, Kings Lynn.
“We have a long-standing relationship with Murphy because it has the experience, knowledge and equipment to take on the various challenges we put to them,” said Aziz Baqutai, project manager from STD.
“With electricity providers now being asked to produce 10 per cent of their output from renewable sources, we expect the number of on- and off-shore wind farms to increase. Together we can help electricity companies to harvest the earth’s energy and feed it into the grid at a suitable level for consumption.”
This latest project is one of a number of large contracts, involving the design, manufacture, construction, installation, testing and maintenance of electrical HV/LV solutions under way within the United Kingdom.
Radiodection claims its RD7000 and RD8000 cable detectors offer facilitate mapping and reporting of pipe locations
Radiodetection, a specialist in the design and development of cable and pipe locators for utility companies, claims its RD7000 and RD8000 introduce groundbreaking features for those installing, protecting and maintaining infrastructure networks.
Locating specific pipes and cables in large underground networks is increasingly complex, says the firm. For instance, ground distortion effects caused by different soil types and proximity to other conductors can make the operator’s job more difficult and more time-consuming. The most important requirements for a locator under these circumstances are ease of use, accuracy and reliability.
The ergonomic features of the RD7000 and RD8000 provide operators with lightweight, energy-efficient and well balanced tools, says their maker. They are also 28 per cent lighter than the RD4000, to enable extended use.
The receiver and transmitter feature a large, high-contrast, backlit LCD screen. The interface is designed to be intuitive and responsive so the operator can assess any feature with ease.
A self-explanatory icon on the keypad is consistent on the transmitter and receiver. The RD7000 and RD8000 also offer the environmental durability associated with an IP54 rating, says Radiodetection.
The RD7000 and RD8000 are enabled for Centros, a measurement engine based on more than 30 years of development that combines new and innovative algorithms with established software on a high-performance processor core.
eCAL is included with Centros Manager, a Radiodetection applications suite for Microsoft Windows with tools to manage RD7000 and RD8000 receivers directly from desktop or laptop computers. As Radiodetection’s customers often work 24/7, it can be inconvenient for them to send equipment back to a service centre for recalibration or updates.
This approach allows operators to validate the original factory calibration of the RD7000 and RD8000 on-line. Operators now have absolute confidence that the locator continues to meet its factory calibration, says its maker. Radiodetection’s eCAL can also issue and print a validation certificate.
ILOC allows the operator to control several features on the transmitter remotely. For areas prone to interference or where multiple operators are locating the operator can use SideStep, which moves the transmitter frequency slightly above the selected frequency to avoid interference. Frequency Select allows the operator to save time by choosing an active frequency on the RD8000 and synchronously changing the transmitter frequency to match.
Power Management allows the operator to adjust the output power of the transmitter to optimize the output signal, leading to efficient use of batteries. The Transmitter remote sleep/awake feature wakes the transmitter with a simple key press on the receiver. When linked, the receiver and transmitter can communicate at up to 100 metres in direct line of sight.
The RD8000 features SurveyCERT, with tools to pass survey information to third-party applications for audit, analysis and reporting on a PC or PDA. The RD8000 stores data in industry-standard CSV file format, compatible with Microsoft Excel and most commercial GIS packages. SurveyCERT makes the RD8000 a powerful ally for pipeline or utility mapping and reporting professionals, says Radiodetection.
GE introduces a dust control and antioxidant solution for coal handling in utilities, terminals, mines and transportation
A solution designed to significantly reduce dusting and oxidation at utilities, terminals, mines and in-transit now is available from GE.
The CoalPlus portfolio of dust control binders and antioxidants enhances coal quality, reduces dust emissions and minimizes spontaneous combustion, addressing operator safety and environmental compliance, two of the main challenges faced by utilities.
GE’s technology can reduce dusting by up to 90 per cent during loading, unloading, stack-out and reclamation at utilities and coal terminals and significantly decreases in-transit coal losses from rail cars. It is specially designed for low-rank coals, such as those from the Powder River Basin (PRB) region in the United States, which supplies approximately 40 per cent of all coal in the country.
CoalPlus technology retards the oxidation and weathering of low rank coals, which in turn reduces hot spots, smokers and spontaneous combustion at generating stations, coal terminals and mines. In addition, less weathering reduces BTU losses during outside storage at coal yards and terminals.
Cloud Peak Energy Resources LLC, which had faced the challenge of controlling the temperature of coal stockpiled at export terminals, has worked with GE and a terminal operator over the last 18 months to reduce the tendency for coal to develop localized hot spots. GE claims its product now successfully treats all coal destined for Cloud Peak Energy’s export markets.
Antioxidants and dust control products in GE’s CoalPlus treatment programme are not coating agents but synthetic materials that inhibit oxidation, said GE. The dosage rates on a per tonne basis tend to be 40 to 100 times lower than those for traditional crusting and coating agents, said the firm. This leads to significant savings in applied chemicals, transportation and logistics costs and ultimately a lower environmental impact during the transportation and handling phase of the coal utilization cycle, according to GE.
GE’s engineering team, in partnership with the utility, can audit the coal supply chain from the mine to the generating unit, identify specific problems and design a custom CoalPlus programme to address specific issues.
“Safety and environmental concerns are paramount when transporting and storing coal, especially Powder River Basin coal, which is dustier and has an increased chance of oxidation. CoalPlus is revolutionary because it allows for higher quality of coal while diminishing spontaneous combustion,” said Ava-Drayton Elder, senior product line director, water and process technologies, for GE Power & Water.
Power Engineering International Archives
View Power Generation Articles on PennEnergy.com