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P&W to Develop Novel Hydrogen Engine in US Government-backed Project

Feb 28,2022

Pratt & Whitney is to develop a novel hydrogen-burning engine that will cut carbon dioxide emissions to zero, slash nitrous oxide emissions by 80% and reduce fuel consumption for next-generation single-aisles by 35%.

The Hydrogen Steam Injected, Inter©\Cooled Turbine Engine (HySIITE) project has been awarded $3.8 million in research and development funding by the US Department of Energy.

In all, $175 million was awarded by the DoE¡¯s Advanced Research Projects Agency-Energy (ARPA-E), under its OPEN 2021 programme for ¡°high-impact, high-risk technologies¡±.

¡°This truly is an exciting opportunity to start developing the key technologies that could bring the industry¡¯s first hydrogen steam-injected, inter-cooled engine from concept to reality,¡± says Geoff Hunt, senior vice-president, engineering and technology at Pratt & Whitney.

¡°For nearly 100 years, Pratt & Whitney has been at the forefront of innovating cutting-edge technologies to continually advance the efficiency of aircraft engines, and we are thrilled to be selected to work on what could be the next breakthrough technology for aviation.¡±

HySIITE will burn hydrogen in a thermodynamic engine cycle that incorporates steam injection from water vapour recovery to dramatically reduce NOx emissions.
Thanks to HySIITE¡¯s semi-closed architecture, P&W aims for thermal efficiency greater than fuel cells and lower total operating costs compared with using ¡°drop in¡± sustainable aviation fuels.

No details were immediately available on the planned development, nor to what technology readiness level the system will be brought.

The ¡°6th Annual Commercial Aero Engine Shanghai International Forum¡± (CAESH) will be held in the city of Shanghai on June 15th to 16th, 2022, focus on scientific and technological innovation-driven, integration of industry in-depth and with a number of domestic and foreign aero engines and aircraft host development units to focus on the ¡°aviation industry policies and market trends¡±, ¡°application of new renewable energy and hydrogen fuel¡±, ¡°advanced aero engine materials and processing technology¡±, ¡°global short-term supply chain coordination¡± and other hot topics, to build a high platform for aero engine technology exchanges, academic discussions and business cooperation.

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