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US 5,512,788 AGranted
Exhaust air recovery system
OwnerRobert M. Berenda, Jack Ferenciinventors
Life of this patent
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Abstract
A system which utilizes wasted or exhausted air flow from one or more ventilation systems of a bounded area such as a mine, a tunnel or some other area requiring ventilation. The exhaust fan of the ventilation system expels air causing air velocities to be directed out of the bounded area at one or more locations. The exhaust air from these necessary ventilation systems is captured and converted to electrical energy by existing wind-powered electrical energy generating equipment suitably positioned in front of the exhaust fan.
Claims13
An energy recovery system comprising:
- a ventilation system of a defined area, the ventilation system having at least one exhaust location, wherein air from within the defined area is expelled outward of the defined area by an exhaust fan as a directed air flow at the at least one exhaust location;
- and
- at least one windmill located exterior to the defined area and being spaced a selected distance from such at least one exhaust location, each such at least one windmill having:
- (i) a rotatable shaft;
- (ii) a plurality of vanes attached to said rotatable shaft;
- wherein the directed air from the ventilation system acts on said vanes, rotating said rotatable shaft;
- and
- (iii) an electrical generator connected to said rotatable shaft.
5 more elements
An energy recovery system comprising:
- a ventilation system of a mine, the mine ventilation system having at least one exhaust location, wherein air from the mine is expelled at the at least one exhaust location;
- and
- a plurality of windmills located exterior to the mine and being spaced a selected distance from one another and from such at least one exhaust location, each such at least one windmill having:
- (i) a rotatable shaft;
- (ii) a plurality of vanes attached to said rotatable shaft wherein the expelled air from the mine ventilation system acts on said vanes, said rotatable shaft;
- and
- (iii) an electrical generator connected to said rotatable shaft.
4 more elements
Dependencies are inferred from the claim text.