British innovation at its best
The Dearman Engine™ simply generates both cooling and power from a single tank of liquid nitrogen. Making it very efficient, effectively providing double the cooling of other cryogenic systems or halving the amount of gas needed for cooling.
How it works:
- Cold liquid nitrogen (LiN) is piped through heat exchangers to provide rapid cooling in the first refrigeration circuit.
- The now warm nitrogen is fed into the Dearman Engine™ (an ingenious yet simple piston expander) and mixed with a heat exchange fluid to increase efficiency as it expands, generating power.
- The Dearman Engine™ powers a second refrigeration cycle and generates electricity to power fans and other systems, allowing fully independent operation.
- The heat exchange fluid is recovered and recycled, and the nitrogen is returned to the air.