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LightSail Energy

Regenerative Air Energy Storage

October 9, 2012

Danielle Fong, Chief Scientist at LightSail Energy, has created a novel way to use tanks of compressed air for energy storage. Compressed air storage is not new but the problem with current methods is that compressing air creates heat energy as the air reaches temperatures of almost 1000 degrees Celsius. Energy is then lost through heat.

LightSail has designed a method of capturing this heat energy and regenerating useful energy from it by injecting a fine, dense mist of water spray which rapidly absorbs the heat energy of compression and provides it during expansion. Fong created a technique for separating the heated water from the compressed air and diverting it into a tank so the heat can be recaptured to reduce energy loss.