Dense Environmental Energy
|Enthalpy (Diffusion) of energy into roadway: Notes:|
Stationary vehicles are supported by the roadway, with their weight concentrated directly into the roadway. The weight compresses the roadway and the air in the vehicle tires. The stresses are balanced between the sidewalls of the tires and the roadway.
When the vehicles move the pressure is diffused into to the roadway as a p-wave of energy, from alternating compressions and rarefactions of the pavement. This energy is available to any system internal to the roadway. With GSE technologies such as PRN, or research using piezoelectric crystals, this energy is available and can be harvested.
Each car, at 45mph, diffuses 15-20 watts of energy into the roadway at each quarter turn of its wheels. Trucks diffuse between 150-200 watt. This energy is subsurface and can be harvested can transparently to the traffic. The challenge is to convert pressure, as opposed to motion, into some more useful and less destructive forms.
We have developed doped layered materials and composites which can convert pressure into electrical energy. These materials can be integrated directly into new construction. Yet, the most effective conversions are into directly locally useable energy forms, such as fluid pressure or gas compression. Our research indicates that 20-30% of the waste energy could be converted into electrical energy, while 70-90% of the wasted energy can be converted into fluid pressure or gas compression, because the pressures are not converted, but are redirected instead.
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