| Power plant products
Green hydrogen transfer solution for the RE sector
Seanovent Engineering AS and Strohm have signed a memorandum of understanding to collaborate on offshore wind-to-hydrogen developments ‘to support a reliable, faster and cheaper green energy transition around the world’.
The partnership will focus on developing safe and dependable hydrogen transfer solutions
which enable and improve the distributed green hydrogen concept, in which green hydrogen is generated at each wind turbine and transported to shore via a subsea pipe infrastructure. Strohm is a prominent designer and manufacturer of thermoplastic composite pipe (TCP), which requires no maintenance requirements and has an operational life of over 30 years, which makes it particularly suited for carrying pressurised hydrogen offshore and subsea. TCP is agnostic to fluids, including hydrogen, and does not suffer from fatigue, embrittlement or other issues associated with using steel for hydrogen. It is also flexible and lightweight, allowing for an array of installation options, from cable lay vessels to small construction vessels.
Cable solution to simplify installation process
Nexans has unveiled a new solution in its Mobiway range, designated ‘Un’Reel’, which is designed to make cable installation simpler, and more cost-effective and secure, across a range of different low and medium voltage cables. Un’Reel employs a patented set of drums with an associated unwinding system. Cable drums are often unwieldy, due to their size and weight; but this solution makes them easy to be handled by operators. One person can complete the installation process safely and efficiently, whether in a small space or warehouse.
The new system is said to save time and money by reducing installation costs and removing the need to purchase additional tools to unwind the cable, owing to its integrated locking system. Users can unload cable directly from drums, eliminating the need for handling and heavy lifting, thus reducing the risk of injury. Jérôme Fournier, corporate VP and director of Innovation, Services & Growth, commented: “The energy transition is driving huge global demand for electricity, so all parts of the electrification value chain need to be streamlined and efficient.
The installation of cables is a crucial part of electrification, yet many traditional methods for unwinding cables can be cumbersome, and even dangerous.”
The drum is returnable, and has a longer life span than conventional drums, due to less rudimentary unwinding processes. Un’reel is scheduled to be introduced worldwide by the end of 2021.
GE delivers first HA GT repair from advanced servicing centre
The shipping of the first HA component repaired at GE’s site in Singapore marks what GE believes is a milestone for its Global Repair Solutions Singapore Centre (GRSS).
The new GRSS Advanced Manufacturing & Repair Technology (AMRT) R&D Center is said by GE to underscore its commitment to developing next-generation repair capabilities for HA class gas turbines. Developments at the centre will ‘provide H-Class combined cycle power plant
operators faster support, reducing repair cycle time significantly, and help support their decarbonisation goals’.
On 17 November GE announced the completion and delivery of the first repaired HA component from AMRT. The GRSS centre was established in 2019 to develop next-generation repair capabilities for HA gas turbines. The first delivery of parts out of the centre follows GE’s 2019 announcement to invest up to $60 million over 10 years at the site, a commitment designed to strengthen repair capabilities globally, with a specific focus in Asia, where GE has over 90% in- region self-sufficiency for repair of heavy-duty gas turbines and a growing installed base. This investment allows the handling of more complex repairs on HA turbines, including repair on high-tech components, such as HA nozzles and blades. Four new lines to repair the HA Hot
Gas Path components have also been added to support the global 9HA component repairs demand. By autumn 2022, GRSS will also be qualified to support 7HA HGP components repair within the Asia region.
In the expanded site, the new AMRT Center has significantly increased GE’s research and development capabilities by focusing on advanced manufacturing applications, adaptive machining, joining capabilities, and inspection technologies. The AMRT Center is also in the process of establishing hydrogen fluoride ion cleaning capabilities which is expected to be completed by the end of 2021.
The Asia region, which contains 60% of the global population and 45% of its electricity consumption, has a rapidly growing gas turbine installed base. GE has more than 1000 GTs installed in the Asia region.
www.modernpowersystems.com | November/December 2021 | 57
Seanovent specialises in underwater engineering and innovation in the provision of infield manifolds, in-line T’s, connectors and associated equipment for subsea connections and transfer of hydrogen, and has in-house expertise in optimising layouts to reduce cost and increase reliability of systems.
Seanovent and Strohm plan to collaborate in the offshore wind-to-hydrogen market, combining their two areas of expertise to deliver a high-quality hydrogen transfer solution. Caroline Justet, business growth executive EiT at Strohm said: “We expect [to provide] more reliable and cost effective solutions. This in turn will lower the levelised cost of energy (LCOE) and make distributed green hydrogen production offshore more competitive, sooner.”
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