Green Design

Electrocatalytic Reduction of Carbon Dioxide to Methane

A room-temperature electrocatalytic process has been investigated as a means of removing carbon dioxide from air and restoring oxygen to the air. The process was originally intended for use in a spacecraft life-support system, but may also have potential utility in applications on Earth in which the methane and oxygen produced might be utilized or vented to the atmosphere.

Posted in: Remediation Technologies, Green Design & Manufacturing, Briefs, GDM

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Tele-Supervised Adaptive Ocean Sensor Fleet

The Tele-supervised Adaptive Ocean Sensor Fleet (TAOSF) is a multi-robot science exploration architecture and system that uses a group of robotic boats to enable in-situ study of ocean surface and subsurface characteristics. TAOSF can study dynamics of ocean phenomena such as coastal pollutants, oil spills, hurricanes, or harmful algal blooms.

Posted in: Climate, Pollution, Environmental Monitoring, Green Design & Manufacturing, Briefs, GDM

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Utilizing Ocean Thermal Energy in a Submarine Robot

A proposed system would exploit the ocean thermal gradient for recharging the batteries in a battery-powered unmanned underwater vehicle (UUV) of a type that has been deployed in large numbers to research global warming. A UUV of this type travels between the ocean surface and depths, measuring temperature and salinity.

Posted in: Batteries, Electronics & Computers, Alternative Fuels, Green Design & Manufacturing, Geothermal Power, Renewable Energy, Energy, Briefs, GDM

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Alternative OTEC Scheme for a Submarine Robot

An alternative system for exploiting the ocean thermal gradient to generate power would be based on the thawing-expansion/freezing-contraction behavior of a wax, or perhaps another suitable phase-change material. The power generated by this system would be used to recharge the batteries in a battery-powered unmanned underwater vehicle.

Posted in: Batteries, Electronics & Computers, Alternative Fuels, Green Design & Manufacturing, Geothermal Power, Renewable Energy, Energy, Briefs, GDM

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NASA Geostationary Coastal and Air Pollution Monitoring

The Geostationary Coastal and Air Pollution Events (GEO-CAPE) mission has been recommended for launch in the 2013-2016 time frame by the National Research Council. The mission’s purpose is to gather science that identifies human versus natural sources of aerosols and ozone precursors, tracks air pollution transport, and studies the dynamics of coastal ecosystems, river plumes, and tidal fronts.

Posted in: Pollution, Environmental Monitoring, Green Design & Manufacturing, Articles, Features, GDM

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System for Removing Pollutants From Incinerator Exhaust

A system for removing pollutants - primarily sulfur dioxide and mixed oxides of nitrogen - from incinerator exhaust has been demonstrated at Johnson Space Center. The system is also designed secondarily to remove particles, hydrocarbons, and CO, and is intended for use in an enclosed environment.

Posted in: Pollution, Remediation Technologies, Green Design & Manufacturing, Briefs, GDM

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