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US 7,251,945 B2Granted
Water-from-air system using desiccant wheel and exhaust
AssigneeHamilton Sandstrand Corporation
InventorStephen Tongue
Life of this patent
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Abstract
A water production unit is provided that uses a desiccant wheel for extracting water from an air loop. A portion of the air loop is heated using exhaust from, for example, a vehicle to regenerate the desiccant wheel.
Claims17
A water production unit comprising:
- an air loop having a dry air passage in fluid communication with a humidified air passage;
- a desiccant wheel arranged in fluid communication between the passages, the desiccant wheel having dry and moist sides, the dry and moist sides respectively exposed to the dry and humidified air passages, the desiccant wheel adapted to expose the dry side to an air source having moisture;
- and
- a heat exchanger in fluid communication the dry side for regenerating the desiccant wheel, the heat exchanger adapted to be exposed to regeneration heat source for providing heat to said dry air passage.
1 more element
A method of producing water comprising the steps of:
- a) circulating air through an air loop;
- b) exposing a moist desiccant wheel to the air loop;
- c) collecting water from the desiccant wheel;
- and
- d) regenerating the desiccant wheel with heat from an exhaust source.
2 more elements
Dependencies are inferred from the claim text.