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Propulsion and Fuel

Submarines with Air Independent Propulsion (AIP) are achieving longer dive duration and range than conventional alternatives. This offers increased capability for non-nuclear powered fleets.

Part of the AIP system is a fuel cell that converts stored hydrogen and oxygen into electricity and water. TPG has a long track record in Electrolysers that generate Oxygen for atmosphere support and Hydrogen from water.  We are working with a number of partners to develop systems for these applications. 

Hydrogen has typically been stored in pressurised vessels or as metal hydride. Storage as alcohol has energy density advantages over traditional methods and fuel processing technology reforms alcohol to hydrogen. This can then be purified and oxidised in a fuel cell to produce electricity to drive large motors. Progressively larger scale, quiet AIP fuel processors, power generation and drive trains are being developed.