Physics World: Cool innovations for clean energy

2018-11-15T13:48:22+00:00November 15th, 2018|Dearman in the News|

Cryogenic technology is making it possible for liquid air, nitrogen and methane – including methane derived from cow slurry – to play roles in combating global warming.

With this in mind, Dearman is currently focusing on replacing the diesel engines found in trucks’ refrigeration units. Such engines are almost unregulated, and contribute greatly to particulate air pollution in cities. “The city of Los Angeles could lose a third of its particulate load if it replaces its current refrigeration unit engines with Dearman engines,” Owen says. Dearman has supplied engines for this application to UK food retailers and producers including Sainsbury’s, Marks and Spencer and Unilever. It also hopes to extend the approach to train and bus air conditioning.

On its own, even a revolution in cryogenic gas technologies would not resolve the enormous challenge that climate change poses to humanity. Dearman’s Chris Owen, however, notes that they can definitely contribute. “It’s a problem we all accept is going to be solved by a lot of small changes rather than one big one,” he says. Replacing diesel used in refrigeration engines “is one small change that moves us in a dramatically right direction”, he adds.

Read the full article on Physics World

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