Environment

Carbon Dioxide Removal via Passive Thermal Approaches

A regenerable approach to separate carbon dioxide from other cabin gases by means of cooling until the carbon dioxide forms carbon dioxide ice on the walls of the physical device has been developed. Currently, NASA space vehicles remove carbon dioxide by reaction with lithium hydroxide (LiOH) or by adsorption to an amine, a zeolite, or other sorbent.

Posted in: Briefs, Briefs, TSP, Energy Efficiency, Greenhouse Gases, Remediation Technologies

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Polymer Electrolyte-Based Ambient Temperature Oxygen Microsensors for Environmental Monitoring

An ambient temperature oxygen microsensor, based on a Nafion polymer electrolyte, has been developed. A challenge in the operation of Nafion-based sensor systems is that the conductivity of Nafion film depends on the humidity in the film. Nafion film loses conductivity when the moisture content in the film is too low, which can affect sensor operation.

Posted in: Briefs, Briefs, TSP, Energy Efficiency, Environmental Monitoring

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Virginia Tech Wins EcoCAR Competition

A team of students from Virginia Tech University won EcoCAR: The NeXt Challenge after designing and building an extended-range electric vehicle (EREV) using E85 (ethanol). Virginia Tech competed against 15 other universities to take home the top prize of the three-year competition.

Posted in: News, News, Batteries, Biomass, Energy Efficiency, Alternative Fuels

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New Hope for Hydrogen Energy

Chemistry researchers at the University of Adelaide, Australia are exploring how metal nanoparticles act as highly efficient catalysts in using solar radiation to split water into hydrogen and oxygen.

Posted in: News, News, Energy Efficiency, Renewable Energy, Solar Power, Alternative Fuels, Greenhouse Gases

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Capturing and Using Waste Heat from Cars, Factories, and Power Plants

New technology is being developed at Oregon State University to capture and use the low-to-medium grade waste heat from automobiles, diesel generators, or factories and electrical utilities. The new systems should be able to use much of that waste heat either in cooling or the production of electricity.

Posted in: Waste-to-Energy, News, News, Energy Efficiency, Geothermal Power, Solar Power, Thermoelectrics, Alternative Fuels

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Geothermal Technology Sequesters Carbon Dioxide Underground

University of Minnesota researchers have developed an innovative approach to tapping heat beneath the Earth’s surface. The method is expected to not only produce renewable electricity far more efficiently than conventional geothermal systems, but also help reduce atmospheric carbon dioxide.

Posted in: News, News, Geothermal Power, Renewable Energy, Greenhouse Gases

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The Invasive Species Forecasting System

The Invasive Species Forecasting System (ISFS) provides computational support for the generic work processes found in many regional-scale ecosystem modeling applications. Decision support tools helps resource managers plan invasive species protection, monitoring, and control strategies for the lands they manage.

Posted in: Briefs, Briefs, Environmental Monitoring

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