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The Dearman engine is a novel piston engine powered by the phase-change expansion of liquid air or nitrogen. It can be used in a variety of applications and will deliver major reductions in carbon, local air pollution, noise and cost. It requires no subsidy, and in the early years will be fuelled from spare nitrogen production capacity.
Liquid air transport applications using Dearman technology are included in the European Road Transport Research Advisory Council’s Energy Carriers for Powertrains report (2014) and are in on-vehicle trials this year. They will be in low-volume production during 2016.
Click on the panels below to find out more about the Dearman engine's zero-emission transport applications.
The ability to store energy is vital if we are to harness clean, renewable energy for use on demand on transport applications. Liquid air (or liquid nitrogen) stores energy as both power and cold, which is a unique advantage for applications which require cooling (i.e. refrigeration or air conditioning) and raises the efficiency of conventional engines. This provides big fuel savings: refrigeration consumes up to 20% of a refrigerated vehicle’s diesel and in a conventional engine more than 60% of each litre of diesel is lost as waste heat.
A short guide to Liquid Air on the Highway and the Dearman engine
Click on the image (left) to view and download Liquid Air on the Highway: A Short Guide (PDF) which explains why there is a strong business case for liquid air-equipped vehicles in the UK, and how this innovative technology could make a dramatically beneficial impact on air quality.
'Liquid Air on the Highway', a new report by the Liquid Air Energy NetworkRead The Report