Abstract: A hydrophilic coating for use with a heat exchanger includes an insolubilizer configured to provide structure or support for the hydrophilic coating. The hydrophilic coating further includes a wetting agent configured to provide wettability for the hydrophilic coating. The hydrophilic coating further includes an antibacterial agent configured to eliminate at least a portion of bacteria that contacts the hydrophilic coating. The hydrophilic coating further includes an antifungal agent configured to eliminate at least a portion of fungi that contacts the hydrophilic coating, the antifungal agent being different than the antibacterial agent and the insolubilizer.

Abstract: A hydrophilic coating system may comprise a second coating disposed on a condensing surface, the second coating comprising a second adhesive agent, a second insolubilizer, a second inorganic compound, and a second antimicrobial agent. The second coating may comprise between 40% and 50% by weight second adhesive agent, between 12% and 16% by weight second insolubilizer, between 30% and 40% by weight second inorganic compound, and between 3% and 4% by weight second antimicrobial agent.

Abstract: A hydrophilic coating system may comprise a second coating disposed on a condensing surface, the second coating comprising a second adhesive agent, a second insolubilizer, a second inorganic compound, and a second antimicrobial agent. The second coating may comprise between 40% and 50% by weight second adhesive agent, between 12% and 16% by weight second insolubilizer, between 30% and 40% by weight second inorganic compound, and between 3% and 4% by weight second antimicrobial agent.

Abstract: A reactor system may comprise a housing; and a condensation catalyst layer within the housing comprising a condensation catalyst comprised of at least one of a base-substituted zeolite, a stannous salt, or a phosphonitrile chloride. The condensation catalyst layer may be configured to catalyze a condensation reaction of a plurality of silane diols in water flowing through the housing into a plurality of siloxanes.

Abstract: The sublimation capability of a porous metal plate used in a sublimator is maintained by heating the porous metal plate at an elevated temperature in a flowing stream of oxygen for an extended period of time to form an oxidized surface. A short chain molecule, such as citric acid, is attached to the oxidized surface having multiple functional carboxylate groups and no hydrophobic tail.

Abstract: A hydrophilic composition includes about 10 to about 30 parts by weight of an adhesive agent, about 10 to about 20 parts by weight of an inorganic compound, about 3 to about 10 parts by weight of an insolubilizer, about 0.3 to about 1.5 parts by weight of an antimicrobial agent, and about 1 to about 40 parts by weight of a condensation catalyst.

Abstract: A method of analyzing for the presence or concentration of an analyte in a liquid in microgravity is disclosed. The method includes removing a first quantity of the liquid from a first container and passing the removed liquid through a porous pad that includes a reagent that is responsive to the analyte. The presence or concentration of the analyte in the liquid is determined based on a response of the reagent. The removed quantity of liquid is transferred back to the first container or to a second container, and followed by disposal of the first or second container.

Abstract: A method of analyzing for the presence or concentration of an analyte in a liquid in microgravity is disclosed. The method includes removing a first quantity of the liquid from a first container and passing the removed liquid through a porous pad that includes a reagent that is responsive to the analyte. The presence or concentration of the analyte in the liquid is determined based on a response of the reagent. The removed quantity of liquid is transferred back to the first container or to a second container, and followed by disposal of the first or second container.

Abstract: A method of remediating a water-based fluid includes the steps of providing a container providing a fluid cavity and organic, inorganic and biological remediation media within the cavity. The container is tubular and provides a linear flow direction, organic, inorganic and biological remediation media arranged in the cavity and configured to permit a water-based fluid within the cavity to simultaneously flow through the media. The organic, the inorganic and the biological remediation media are respectively configured to remove organic, inorganic and microbiological constituents. The organic, inorganic and biological remediation media are arranged within the cavity along the linear flow direction. Multiple cartridges are arranged within the cavity and spaced apart from one another. A predetermined flow rate of the water-based fluid through the cavity is set and it concurrently removes organic, inorganic and iodine-based biocide contaminants from the fluid within the cavity.

Abstract: The sublimation capability of a porous metal plate used in a sublimator is maintained by heating the porous metal plate at an elevated temperature in a flowing stream of oxygen for an extended period of time to form an oxidized surface. A short chain molecule, such as citric acid, is attached to the oxidized surface having multiple functional carboxylate groups and no hydrophobic tail.

Abstract: According to one aspect of the invention, a heat transfer system comprises a heat transfer fluid circulation loop. The heat transfer system includes a heat exchanger disposed in the heat transfer fluid circulation loop. The heat transfer fluid is an aqueous solution having a pH of 7.8 to 8.0 that comprises from 1.00 wt. % to 1.20 wt. % of a buffer composition comprising sodium and/or potassium salts of borate, carbonate, sodium bicarbonate, from 0.40 wt. % to 0.60 wt. % of a straight chain aliphatic dicarboxylic acid, from 0.90 wt. % to 1.10 wt. % of a branched aliphatic carboxylic acid, from 0.40 wt. % to 0.60 wt. % of an aromatic carboxylic acid, from 0.04 wt. % to 0.08 wt. % of a molybdate salt, and from 0.01 wt. % to 0.03 wt. % of an aldehyde biocide, based on the total weight of the heat transfer fluid.

Abstract: The sublimation capability of a porous metal plate used in a sublimator is maintained by heating the porous metal plate at an elevated temperature in a flowing stream of oxygen for an extended period of time to form an oxidized surface. A short chain molecule, such as citric acid, is attached to the oxidized surface having multiple functional carboxylate groups and no hydrophobic tail.

Abstract: A method of remediating a water-based fluid includes the steps of providing a container providing a fluid cavity and organic, inorganic and biological remediation media within the cavity. The container is tubular and provides a linear flow direction, organic, inorganic and biological remediation media arranged in the cavity and configured to permit a water-based fluid within the cavity to simultaneously flow through the media. The organic, the inorganic and the biological remediation media are respectively configured to remove organic, inorganic and microbiological constituents. The organic, inorganic and biological remediation media are arranged within the cavity along the linear flow direction. Multiple cartridges are arranged within the cavity and spaced apart from one another. A predetermined flow rate of the water-based fluid through the cavity is set and it concurrently removes organic, inorganic and iodine-based biocide contaminants from the fluid within the cavity.

Abstract: A water-based remediation bed includes a container providing a fluid cavity. Organic, inorganic and biological remediation media are arranged in the cavity and are configured to permit a water-based fluid within the cavity to simultaneously flow through the media.

Abstract: According to one aspect of the invention, a heat transfer system comprises a heat transfer fluid circulation loop. The heat transfer system includes a heat exchanger disposed in the heat transfer fluid circulation loop. The heat transfer fluid is an aqueous solution having a pH of 7.8 to 8.0 that comprises from 1.00 wt. % to 1.20 wt. % of a buffer composition comprising sodium and/or potassium salts of borate, carbonate, sodium bicarbonate, from 0.40 wt. % to 0.60 wt. % of a straight chain aliphatic dicarboxylic acid, from 0.90 wt. % to 1.10 wt. % of a branched aliphatic carboxylic acid, from 0.40 wt. % to 0.60 wt. % of an aromatic carboxylic acid, from 0.04 wt. % to 0.08 wt. % of a molybdate salt, and from 0.01 wt. % to 0.03 wt. % of an aldehyde biocide, based on the total weight of the heat transfer fluid.

Abstract: An antimicrobial coating slurry includes about 15.5 wt % of a wetting agent, about 6.0 wt % of an insolubilizer, about 1.1 wt % of a biocide agent, and about 7.8 wt % of an inorganic material that includes lithium oxide and the balance water. The slurry is applied to a heat exchanger surface, cured, and washed to form a hydrophilic coating that includes lithium silicate. The hydrophilic coating provides improved moisture wicking and a reduced dissolution rate of biocide, which is held within a lithium silicate matrix.

Abstract: A method for controlling microbial growth in potable water stored in a vessel having a metallic surface includes heating the metallic surface to a temperature between about 480° C. (900° F.) and about 870° C. (1600° F.), exposing the metallic surface to oxygen during heating to oxidize potential reduction sites on the metallic surface and charging potable water containing silver ions to the vessel. A vessel having a metallic surface is prepared for long-term storage of potable water containing silver ions by heating the metallic surface to a temperature between about 480° C. (900° F.) and about 870° C. (1600° F.) and exposing the metallic surface to oxygen during heating to oxidize electropositive metals on the metallic surface or by treating the metallic surface with an aqueous solution containing on oxidizing agent to oxidize potential reduction sites on the metallic surface.

Abstract: The sublimation capability of a porous metal plate used in a sublimator is maintained by heating the porous metal plate at an elevated temperature in a flowing stream of oxygen for an extended period of time to form an oxidized surface. A short chain molecule, such as citric acid, is attached to the oxidized surface having multiple functional carboxylate groups and no hydrophobic tail.

Abstract: A water-based remediation bed includes a container providing a fluid cavity. Organic, inorganic and biological remediation media are arranged in the cavity and are configured to permit a water-based fluid within the cavity to simultaneously flow through the media.

Abstract: An aqueous-based coolant for cooling and reducing corrosion potential in applications having high aluminum or nickel surface area to coolant volume ratios has a pH between 8 and 9 and includes about 35 weight % to about 65 weight % propylene glycol, about 1.0 weight % to about 4.0 weight % 2-ethylhexanoic acid, about 0.25 weight % to about 1.0 weight % sebacic acid, about 0.25 weight % to about 1.0 weight % benzoic acid and about 0.03 weight % to about 0.1 weight % molybdate oxyanion. A cooling system includes an aluminum or nickel surface and the aqueous-based coolant. A method of cooling a component surface containing aluminum or nickel includes delivering the aqueous-based coolant to the component surface and cooling the component surface with the aqueous-based coolant.