Tech Exchange

Land-Intensive Solar Tracker Generates Photovoltaic Power

A solar tracker enables the construction of independent power sources and a micro-grid. The mechanism of the land-intensive system has two independent virtual axes for azimuthal moving and altitude moving. After the solar panel is aligned, the tracker drives it to move from east to west until the amount of change of the Sun’s altitude reaches a specific level.

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Adhesion Prevention for Sheet Goods

A company produces and stacks sheet goods that have a naturally viscous and sticky surface material. The sticky material is applied at about 480 °F. During application, the coating has a specific gravity of 1.03 to 1.70, and a viscosity of >5000 cps. A release material needs to be applied to the substrate material during production so that the sheets do not adhere during shipment and storage. Even at 480 °F, the coating cannot decompose, melt, mix, delaminate, or combine with the underlying substrate. The organization is open to any application method, such as roll-to-roll, spray, paint-on, or application via tape.

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Smooth Dispensing of Adhesive

Without producing clumps, a professional adhesive must be poured in a consistent and smooth way. A company seeks a dispenser/ applicator that can handle a thick, gelatinous, preformed, professional-quality adhesive. Currently, a polymer dispersion of polyvinyl pyrrolidone is used. While the stearates thicken the adhesive and provide an even “flow,” they bring the compression/shear strength of the formulation down to 400-600 lbs. A proposed professional-level adhesive must dispense just as well, but offer a compression shear strength of 2000-2500 lbs. The substrates to be joined include such porous substrates as wood and engineered wood products, and various non-porous surfaces such as metal and plastic.

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Electronic Device Prevents Hearing Loss

MP3 and MP4 players, along with powerful Class-D headphone amplifiers, can cause hearing loss due to a continuously high sound pressure level (SPL). A Hungarian university has developed an electronic device for preventing hearing loss and simulating ear distortion. The invention is a simple module that models the distortion of the human ear and produces natural sound experience with low sound pressure level.

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Palladium Membranes Separate Hydrogen

Compared to conventional technology, palladium membranes offer an increased flow of high-purity hydrogen from a gaseous stream. The membranes are prepared by electroless- deposition plating of Pd (or Pd alloy) on a porous support. The process results in a unique hexagonal structure. High flux translates to smaller separators or lower cost for the same purity of hydrogen.

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Delivery of Antiseptic/Antimicrobial Formulation

A company must deliver a measured amount of antiseptic/ antimicrobial formulation to a specific surface area (between 1 to 3 square feet) and be able to verify visually that the area has been adequately covered and treated. Currently, the antimicrobial formulation is a liquid with a viscosity approximately that of water. Methods must maintain the sterility of the unused product until its outer protective packaging is opened. Data must also show the efficacy of the application method, including improved completeness of coverage, depth of penetration, or ease and simplicity of use.

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Reduction of Liquid Temperatures in Metal/Glass Containers

Beverages, when served cold, quickly heat up during consumption. A client seeks material and process technologies that will insulate against heat gain or actively reduce temperature of liquids contained in glass bottles or metal cans. Processes that enable the printing, coating, and spraying of foam-like or phase-change materials are also of interest. Potential solution areas include insulation materials, aerogels, cooling hydrogels, and foaming polymers. The material must not be more than 250 microns thick.

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