Bowman Power Group Ltd. is a specialist technology, engineering and manufacturing firm working in the field of turbomachinery electrification and the associated power electronics and control software. Bowman has successfully brought innovative eTurbine products and power electronics to the market that improve the efficiency and reduce the emissions, of internal combustion engines (ICEs). Bowman has diversified its technology through developments to include high speed (electric) eCompressors and eTurbochargers and expanded its markets to include rail, road transport and aerospace. These products are key enablers to accelerate the energy transition - moving away from fossil fuel use in ICEs and toward clean and zero carbon fuels in ICEs and fuel cells - to achieve UK and global CO2 reduction targets. The bespoke carbon fibre wound rotor and the stator design required to drive eTurbochargers suitable for high and medium speed internal combustion engines is not currently available in the market. This technology will help the effective operation of these machines on current and future fuels ICE platforms by enabling faster acceleration of the turbocharger and the ability to recover energy back to the electricity grid thereby improving efficiency and helping to meet the future emission target set by governments. The key objectives will be to demonstrate the performance benefits and viability of an eTurbocharger together with bespoke power electronic systems suitable for an existing high- speed engine industrial peaking plant application. This project will enable key skill sets and roles to be secured and developed in the company over the long term, benefiting the UK with high-technology, high-value job opportunities. The project contributes to the UK's ambition to lead on all aspects of electrification technology and the movement to future fuels for zero carbon emissions.
The UK national grid and the majority of power grids globally, rely to some extent on internal combustion engine generator sets (gensets) to provide 'peaking' power provision when demand peaks, or to back fill renewable sources such as wind or solar when unavailable. Where there is a gas grid, gensets are gas fuelled but otherwise, they often still use diesel.
It is advantageous for these gensets to be able to ramp to full power quickly, which diesel gensets are very capable of. However, gas gensets have poor response times ramping from a cold start to full power, and when accepting large load increases whilst running. This is why diesel is the normal choice for backup power, especially for critical infrastructure such as hospitals or data centres even if gas is available.
Bowman has developed a solution to dramatically improve gas genset responsiveness. With this 'fast-start' eCompressor (FSEC) technology, much faster cold engine load ramp times can be achieved - reduced from a few minutes to less than 10 seconds. This transformational change in performance can make gas gensets viable for backup where diesel is currently used and enable existing gas gensets to be much more responsive to improve power grid resilience and stability. This latter point is important as UK National Grid is introducing new incentives for faster starting and other countries are expect to follow suit. Furthermore, FSEC technology can help with the transition of gas gensets to future zero carbon fuels which have more onerous requirements for combustion air.
Bowman will develop a TRL6 prototype and evaluate it on a test bench against a full range of performance requirements defined by operators and for certification in various global territories.
Where the combustion engine remains the optimal solution for power generation, FSEC technology will be an enabler for transition from diesel to gas in the near-term, improve the performance of gas gensets and also accelerate transition to other gas fuels of the future such as green hydrogen or ammonia.
Bowman Power Group Ltd. is a specialist engineering and technology firm working in the field of turbomachinery electrification. Bowman has successfully brought innovative electric turbo compounding (ETC) products to the market that improve the efficiency and performance, and reduce the emissions, of internal combustion engines (ICEs) used in stationary power generation. It has also explored their use in rail and marine applications.
The company is looking to move forward and progress its products to a new level of sophistication by significantly improving the performance benefits offered whilst reducing cost and simplifying their implementation. This project will see the development of a fully integrated electric turbocharger (eTurbo) that builds on the skills and experience in the business and outputs of prior projects. By integrating the electrical elements of its ETC products directly within an ICE's turbocharger, similar energy efficiency benefits can be achieved with less components and therefore lower cost, but with the addition of a transformational new 'degree of freedom' to the engine control system enabling much improved engine responsiveness which can yield further emissions reduction benefits. eTurbo technology will allow the ICE market to develop and evolve in line with the sustainability objectives of all target markets, whereby in the near term the use of diesel can be progressively eliminated in favour of gas (resulting in approximately 20% less CO2 due fuel properties alone), ideally bio-derived gases, and in the longer term, switchover to the combustion of green hydrogen or ammonia in place of any carbon-based fuels
eTurbos are already being developed for the automotive and light-duty commercial markets. Bowman will continue to work through its existing channels to market to address industrial scale (\\>500kW) ICE applications. The project will enable key skill sets and roles to be secured and built in the company in the long term, benefiting the local region with high-technology, high-value job opportunities. The project contributes to the UK's ambition to lead on all aspects of electrification technology in the area of high-speed electric machines and power electronics. The project's outcomes will be exploited in the UK and internationally and do so in a sustainable way that benefits contributes to the global transition to a cleaner future.
Bowman Power designs, makes and sells Electric Turbo Compounding technology, which is recognised as one ot
the Global Top 100 Clean Technologies in the world. This project will assess the viablility of funding and
supplying a next generation of ETC technology to US engine manfufactures as part of driving global adoption of
the technology. The engine manufacturers in the US are the largest in the world and access to this market has
the potential to make a material reduction in global emissions with typically 5-7% reductions observed per
engine and presents a transformational opportunity for Bowman's UK developed technology.
The objective of this collaborative industrial development project is to deliver a design solution and prototype hardware to demonstrate the application of electric turbo-compounding on marine diesel and gas engines to TRL 6. The core technology has already proven effective and reliable in land-based stationary powergen applications using similar base engines, however this project addresses two innovative development directions; the transfer of the technology into the maritime environment with all the challenges and additional regulatory requirements that entails, and also the scaling up of the technology to the engine power range more prolific in this sector, 2-4MW per engine. The track record for this technology in land-based applications is strong with fuel savings of 6-8% compared with the base engine performance being typical. The reduction in fuel utilised for a given voyage is accompanied by an attendant reduction in harmful emmissions - with strong adoption of this technology, it is predicted that millions of tonnes of CO2 emissions could be prevented.