No assignee for patent application serial number 621419 has been made.
News editors obtained the following quote from the background information supplied by the inventors: "Existing thermoelectric (TE) (Peltier Effect) devices designed to extract water from ambient humidity through condensation typically use finned metal heat exchangers which are constrained to be in direct contact with or in close proximity to the faces of the TE element(s). This constrains the location of the heat exchangers in two ways--each heat exchanger must be co-located with its assigned (hot or cold) side of the TE device, and the two sides must therefore be separated by the thickness of the TE device, which is a fraction of an inch. These constraints make for difficult design choices in both location of the heat exchangers and air handling. These difficulties have limited the application of TE devices in water production machines to date.
"Water produced by condensation from ambient air contains various impurities including dust particles, microbes and viruses from the air, and dissolved gaseous compounds which affect its taste. Municipal and private sources of potable water contain dissolved solids and other compounds which affect taste and in some cases microbes and viruses.
"In order to remove these taste- and safety-affecting materials various types of filtering systems have been used. An effective filtration and distribution system for potable water must remove dissolved taste and odor causing chemicals, dissolved solids, and either kill or prevent microbes, molds, and viruses from reproducing and remove the detritus left behind by so doing. If potable water is to be stored after filtration it must be re-filtered before dispensing. Good practice dictates that stored water be subjected to disinfection and recirculated through the filtration system on a regular basis to eliminate detritus and disinfection byproducts."
As a supplement to the background information on this patent application, NewsRx correspondents also obtained the inventors' summary information for this patent application: "Disclosed herein is a water production system that uses any electrically forced means of establishing separate hot and cold areas and that does not use a compressor, which will at times be referred to herein as a thermal separation device. Present-day examples of thermal separation devices include thermoelectric (Peltier Effect), thermoacoustic, electron tunneling, vortex chilling and inverse barocaloric effect cooling devices. The subject system incorporates a fluid-based heat exchanger on either the cold or hot side, or on both sides, of a thermal separation device coupled to a remote fluid-air heat exchanger by a fluid (typically either a liquid, or a fluid that undergoes a phase change) that is moved through a pipe or tube. This arrangement, while still demanding a heat exchanger at the face of the thermal separation device, provides multiple benefits. The fluid-based heat exchanger that is thermally coupled to the thermal separation device can be much smaller than an equivalent air-based heat exchanger; no air flow to the location of the fluid-based heat exchanger is needed; and a fluid-based heat exchanger can be constructed to be more effective than an air-based heat exchanger of similar size. One or a plurality of other heat exchangers may be used, alone or in conjunction with a fluid-to-air heat exchanger to transfer heat from the fluid to ambient air or other heat sink(s), such as a geothermal well. These other heat exchangers, transferring heat out of the moving fluid, may be located so as to maximize a combination of convenience, efficiency, cost and various other factors.
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