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Old 03-10-2010, 10:12 AM
HiggsBoson HiggsBoson is offline
Join Date: Feb 2010
Posts: 52
Liquid nitrogen engine

If liquid nitrogen is injected into a cylinder with a piston or diaphragm and heated the liquid would expand to a gas, push down the piston/diaphragm. Anyone who has used liquid nitrogen would appreciate the force generated by expanding liquid nitro.
The vapour would then have to be recycled and condensed back to a liquid to begin the expansion cycle again.
Would the process of condensing take more energy than the original expansion cycle produced or could this cycle perpetuate on a diminishing output until it would have to be recharged/refrozen ?
If it could be proven to work would the refreezing/recharging process consume more energy than the device would generate before a refreeze ?
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