Tech Briefs
Microwave Plasma Hydrogen Recovery System
Posted in Energy Efficiency, Hydrogen, Carbon Dioxide, Tech Briefs on
Tuesday, August 31 2010
A microwave plasma reactor was developed for the recovery of hydrogen contained within waste methane produced by Carbon Dioxide Reduction Assembly (CRA), which reclaims oxygen from carbon dioxide. NASA can incorporate the innovation into flight hardware systems for deployment in support of future long-duration exploration objectives.
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Diffuse-Illumination Systems for Growing Plants
Posted in Energy Efficiency, LEDs/Lighting, Tech Briefs on
Friday, August 27 2010
A proposed plant-growth system takes advantage of the highly diffuse reflective surfaces on the interior of a sphere, hemisphere, or other nearly enclosed structure that is coated with highly reflective materials. This type of surface and structure uniformly mixes discrete light sources to produce highly uniform illumination.
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Fish Schooling as a Basis for Vertical Axis Wind Turbine Farm Design
Posted in Energy Storage, Wind Power, Energy Efficiency, Renewable Energy, Tech Briefs on
Thursday, July 15 2010
Most wind farms consist of horizontal axis wind turbines (HAWTs), but an alternative paradigm for wind energy extraction is found in vertical axis wind turbine (VAWT) designs. A single spatially-isolated VAWT has a significantly lower power coefficient.
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Effects of Cerium Removal from Glass on Photovoltaic Module Performance and Stability
Posted in Solar Power, Energy Efficiency, Renewable Energy, Pollution, Tech Briefs on
Wednesday, July 14 2010
In recent years, better stabilizer formulations for ethylene vinyl-acetate have been developed, giving more confidence in the long-term stability of PV packaging materials. Because of this, some manufacturers have stopped using Ce-doped glass. National Renewable Energy Laboratory researchers studied Ce-free glass.
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Formula for the Removal and Remediation of Polychlorinated Biphenyls in Painted Structures
Posted in Remediation Technologies, Pollution, Tech Briefs on
Friday, June 04 2010
An activated metal treatment system (AMTS) removes and destroys polychlorinated biphenyls (PCBs) found in painted structures or within the binding or caulking material on structures. It may be applied using a “paint-on and wipe-off” process that leaves the structure PCB-free and virtually unaltered in physical form.
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Water Membrane Evaporator
Posted in Pollution, Tech Briefs on
Thursday, May 27 2010
A water membrane evaporator (WME) has been conceived and tested at Johnson Space Center as an alternative to the contamination-sensitive and corrosion-prone evaporators currently used for dissipating heat from space vehicles.
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Integrated Solar Concentrator and Shielded Radiator
Posted in Solar Power, Renewable Energy, Tech Briefs on
Wednesday, May 26 2010

A shielded radiator integrated within a solar concentrator was developed by Lockheed Martin Space Systems for applications that require protection from high ambient temperatures with little convective heat transfer. The innovation uses a reflective surface to deflect ambient thermal radiation, shielding the radiator.
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