Green Design

Chemochromic Hydrogen Leak Detectors

Because hydrogen is odorless and colorless and poses an explosion hazard, there is an emerging need for sensors to quickly and accurately detect low levels of leaking hydrogen in fuel cells and other advanced energy-generating systems in which hydrogen is used as fuel. Simple, color-changing sensors have been invented.

Posted in: Alternative Fuels, Green Design & Manufacturing, Energy Storage, Energy, Briefs, GDM

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Microstrip Antenna for Remote Sensing of Soil Moisture and Sea Surface Salinity

A compact, lightweight, dual- frequency antenna feed can benefit future soil and ocean studies by lowering mass, volume, and cost of the antenna system. The microstrip array design enables combined radar and radiometer instrumentation for satellite or airborne remote sensing.

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

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Monitoring Plutonium Contamination

Five years from now, scientists will be able to better determine how, when, and why plutonium moves in soil and groundwater. The way to predict how plutonium is transported in groundwater away from a site is by looking at the dominant geochemical processes that control plutonium's (Pu) behavior in the subsurface at environmental levels. But that isn't always so easy.

Posted in: Environmental Monitoring, Remediation Technologies, Green Design & Manufacturing, News, GDM

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JPL Greenland Moulin Exploration Probe

A probe was designed to investigate the moulins - melt water drainage channels on an ice cap - and ice-hydrology interaction in the Greenland Ice Cap. By using commercially available components, the strong and reliable system has a high-definition video recording element, is lightweight, and has buoyancy that is easily adjustable and enables different deployment scenarios.

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

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Feather Fibers Fluff Up Hydrogen Storage Capacity

Scientists have developed a new hydrogen storage method - carbonized chicken feather fibers - that can hold vast amounts of hydrogen, and do it at a far lower cost than other hydrogen storage systems. The research could help overcome some of the hurdles to using hydrogen fuel in cars, trucks, and other machinery.

Posted in: Alternative Fuels, Green Design & Manufacturing, Energy Storage, Energy, News, GDM

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Fuel-Cell Power Systems Incorporating Mg-Based H2 Generators

Two hydrogen generators based on reactions involving magnesium and steam have been proposed at NASA’s Jet Propulsion Laboratory as means for generating fuel (hydrogen gas) for motor vehicles. The generators would make it unnecessary to rely on expensive, heavy, bulky, or unsafe hydrogen storage systems previously developed.

Posted in: Alternative Fuels, Green Design & Manufacturing, Energy Storage, Energy, Briefs, GDM

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Computing Cost-Effective Pollution Control Strategies

A new tool could help in choosing the best ways to control pollution on even the smallest of waterways. The tool analyzes data from an area, and can compute the most cost-effective pollution-control strategies for water resources affected by agriculture in just a few hours - a process that currently takes weeks or months.

Posted in: Pollution, Environmental Monitoring, Remediation Technologies, Green Design & Manufacturing, News, GDM

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