Abstract:
A plurality of adsorption containers are provided which are separated into heater adsorber zones and condenser evaporator zones. The zones are successfully rotated through flow segments which form a passageway for heat carrier flows. The heater adsorption zones contain an adsorption substance from which an operating substance is extracted by adsorbing heat from a heat carrier flow and is again adsorbed by emitting heat to a further heat carrier flow. The operating substance condenses and evaporates by means of a heat exchange with further heat exchangers. The adsorption devices are suitable as cooling devices and heat pumps as well as heat transformers and heat exchangers.
Abstract:
The present invention provides a method of preparing a heat exchange element comprising a molded product of a paper-like material made of ceramic fibers as a matrix, the interstices among the ceramic fibers being uniformly filled with molecular sieve particulates having an average particle diameter of 5.5.mu. or less, the ceramic fibers and the molecular sieve particulates being bound by a silicic acid gel.
Abstract:
A composite formed of small desiccant particles retained in a dark matrix composed of a porous binder containing a transition metal oxide with pores to provide moisture transport with respect to the particles, and metallic fibers to remove the heat of condensation during dehumidification and provide heat for the removal of moisture during regeneration. The moisture absorbing properties of the composite may be regenerated by exposure of the dark matrix to solar radiation with dehumidification occurring at night.
Abstract:
The present invention provides a heat exchange element comprising a molded product of a paper-like material made of ceramic fibers as a matrix, the interstices among the ceramic fibers being uniformly filled with molecular sieve particulates having an average particle diameter of 5.5.mu. or less, the ceramic fibers and the molecular sieve particulates being bound by a silicic acid gel.
Abstract:
A water producing apparatus for extracting water from moisture-laden ambient air including a plurality of circumferentially spaced chambers packed with an adsorbent for adsorbing moisture in the air, a driving mechanism for bringing one or more of the chambers into and out of communication with a first and second desorbing section, a mechanism for passing ambient air through the chambers not in communication with the desorbing section, whereby moisture from the ambient air is adsorbed on the adsorbent and subsequently removed from the adsorbent in each chamber as that chamber is brought into communication with the desorbing sections, a recycling duct connecting the post-desorbing section to the predesorbing section to complete a desorption circuit, a mechanism for circulating air through the circuit to remove water from the adsorbent, a mechanism for heating the air in the circuit, and a mechanism for removing water from the circuit. The ratio of the number of chambers in communication with the desorbing sections to the number of chambers receiving moisture-laden air can be varied according to the temperature and moisture content of the ambient air.
Abstract:
A sorbent-type air conditioning system which employs conventional refrigeration unit, including a compressor, evaporator, condenser and refrigerant. The cooling and heating effect or energy generated by the evaporator and condenser is the primary source of energy to temperature and moisture condition air and to regenerate or concentrate sorbent which becomes diluted during the moisture conditioning of the air.
Abstract:
The heat transfer medium for rotary air-to-air heat transferrers includes alternate planar and corrugated layers of a fiber-reinforced, heat-curable, organic resinous material. After corrugating and interleaving of the layers, the resultant structure is heated to cure the resin to a hardened state and the layers are bonded together at their points of contact to form a self-supporting, water-proof structure including a plurality of uniformly-spaced, tubular flow passages extending axially through the structure in parallel relationship parallel to the rotational axis of the transferrer. The surfaces of the flow passages exposed to air flow are coated with an aqueous coating solution containing a water-soluble hygroscropic material, such as lithium chloride, and a sufficient amount of a water-soluble wetting agent to provide a continuous film of the coating solution on these surfaces.
Abstract:
The transfer elements of a heat and humidity exchanger are made by forming the transfer elements in the desired configuration and of a non-hygroscopic metal such as aluminum, and treating the surfaces to produce an integral hygroscopic layer thereof. This is done by oxidizing the surface of the metal to form an oxide layer, which itself is hygroscopic, and preferably enhancing the hygroscopic properties by subsequent impregnation of the oxide with a hygroscopic material such as lithium chloride. According to one form of the method, the oxidizing layer is produced by immersing the transfer elements, in a bath such as a warm aqueous solution of sodium hydroxide, or sodium carbonate, followed by heating in humid air; in a second form of the method, the oxide layer is produced by heating in humid air, or in a water, without preliminary alkaline treatment; in a third form of the method, the oxide layer is formed in a water bath containing an oxidizing agent such as trietanolamin or hydrogen peroxide. When preliminary alkaline treatment is used, it is preferably followed by an acid treatment prior to heating. In any of these methods, the oxidation step is preferably preceded by an acid treatment to render the surfaces of the transfer elements more porous.
Abstract:
An improved method and apparatus for air conditioning, using a refrigeration system, are disclosed. The disclosed method and apparatus provide for a refrigeration type air conditioning system to be equipped with a regeneratable desiccant for contacting moist feed air prior to passing the feed air across evaporator coils of the system. The desiccant removes a substantial portion of moisture from the feed air, thereby improving the efficiency of the air conditioning system. The desiccant material is regenerated by utilizing waste heat that is removed from the condenser of the air conditioning system.
Abstract:
A metal strip is used for elements in a regenerative heat exchanger employed for the exchange of latent and sensible heat from a warm outgoing air stream to a cold ingoing air stream. The strip is placed alternatingly in the form of flat and corrugated sheets to form flow channels for the warm and cold air. The metal strip, for example, an aluminum foil, is coated or laminated at least on one side with a paper-like hydrophillic material. The hydrophillic layer comprises a mixture of cellulose fibers and fibers with olefin hydrocarbons as basis. Furthermore, fungicides can be added to the mixture.