Hamilton Sundstrand Corporation

Hamilton Sundstrand Space Systems International, Inc.

Barbara M Peyton

John W Steele

Tony Rector

Carol L Metselaar

Peter A Canga

Douglas Zupan

Steven A Poteet

Iwona Wrobel

Aaron Beaudry

Jerome D Varsik

Daniel Montefusco

A system includes a filter device that has, in serial flow order, an adsorbent bed, a biocide filter, and a particle filter. The adsorbent bed includes adsorbent media that is configured to remove organic compounds from feed water that are capable of forming an adherent layer on a porous surface of a sublimator, and the biocide filter contains a halogen-release material.

Thermal management system with sublimator and adsorbent bed

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.

Condensation catalyst systems and methods

Disclosed herein is a water system component including a substrate and a hydrophilic coating disposed on the substrate. The hydrophilic coating includes an adhesive agent; an insolubilizer for insolubilizing the adhesive agent; titanium dioxide; and a metal oxide selected from the group consisting of silver oxide, copper oxide, iron oxide, magnesium oxide, and combinations thereof.

Water system component

Disclosed herein is a hydrophilic coating that includes an adhesive agent; an insolubilizer for insolubilizing the adhesive agent; titanium dioxide; and a metal oxide selected from the group consisting of silver oxide, copper oxide, iron oxide, magnesium oxide, and combinations thereof. The hydrophilic coating is useful on the heat transfer surfaces of a condensing heat exchanger.

Antifungal/antibacterial hydrophilic coating

Disclosed is a multilayer hydrophilic coating, comprising: a base layer comprising oxide particles, wherein a shape of an oxide particle is a hollow, generally spherical shell; a topcoat layer deposited on the base layer, wherein the topcoat layer comprises a sol-gel; and a doping agent, wherein the doping agent is located within the topcoat layer, deposited on the topcoat layer, located between the base layer and the topcoat layer, or combinations thereof.

Multilayer hydrophilic coating and methods of making the same

A thermal management system includes a space structure, a feed water container, a water feed line, a pump, and a filter device. The space structure includes a heat source connected with a fluid loop for conveying a working fluid through the heat source to regulate temperature and a sublimator connected with the fluid loop to receive the working fluid. The sublimator has a porous surface. The water feed line is connected with the container and the sublimator. The pump is located in the feed water line and is operable to move the feed water from the container to the sublimator. The sublimator is operable to cool the working fluid using the porous surface. The filter device is located in the water feed line between the pump and the feed water container. The filter device includes an adsorbent bed to remove organic compounds.

A thermal management system includes a sublimator that has a porous plate, a water feed line connected with the sublimator for delivering feed water to the porous plate, and an adsorbent bed in the water feed line. The sublimator is operable to freeze and sublime the feed water using the porous plate. The adsorbent bed is configured to substantially remove organic compounds from the feed water.

A water treatment system includes an adsorbent bed, a halogen-release material downstream of, and adjacent to, the adsorbent bed, and a passive halogen barrier intermediate of the adsorbent bed and the halogen-release material.

Water treatment system with passive halogen barrier

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.

Hydrophilic coating system

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.

Heat transfer system with aqueous heat transfer fluid

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.

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Windsor, CT, United States of America

Barbara M Peyton