Transportation

Enhanced Fuel-Optimal Trajectory-Generation Algorithm for Planetary Pinpoint Landing

An enhanced algorithm has been developed that builds on a previous innovation of fuel-optimal powered-descent guidance (PDG) for planetary pinpoint landing. The PDG problem is to compute constrained, fuel-optimal trajectories to land a craft at a prescribed target on a planetary surface.

Posted in: Energy Efficiency, Energy, Transportation, Briefs, GDM

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Power Module for Electric Vehicles

Mitsubishi Electric (Tokyo, Japan) recently introduced a transfer molded power module (T-PM) designed for hybrid and electric vehicle applications. The J-Series T-PM, incorporating proprietary technology that ensures power loss reduction, has a lifespan 30 times longer than industrial power modules and is also Pb-free - including the terminal plating.

Posted in: Energy Efficiency, Energy, Transportation, Products, GDM

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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: Batteries, Electronics & Computers, Alternative Fuels, Green Design & Manufacturing, Biomass, Energy Efficiency, Energy, Transportation, News, GDM

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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, Alternative Fuels, Green Design & Manufacturing, Geothermal Power, Solar Power, Energy Efficiency, Thermoelectrics, Energy, Transportation, News, GDM

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Neutron Analysis Explains Dynamics Behind Thermoelectric Materials

Neutron analysis of the atomic dynamics behind thermal conductivity is helping scientists at the Department of Energy's Oak Ridge National Laboratory (ORNL) gain a deeper understanding of how thermoelectric materials work. The analysis could spur the development of a broader range of products with the capability to transform heat to electricity.

Posted in: Waste-to-Energy, Solar Power, Energy Efficiency, Thermoelectrics, Energy, Transportation, News, GDM

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Isolated Monolithic Flyback Regulator

Linear Technology Corporation (Milpitas, CA) offers a high-reliability (MP-grade) version of the LT3511, a high-voltage isolated monolithic flyback regulator that operates over a -55°C to 150°C junction temperature range. The device simplifies the design of an isolated DC/DC converter since it needs no optocoupler, third winding, or signal transformer for feedback, as the device’s output voltage is sensed from the primary-side flyback signal.

Posted in: Energy Efficiency, Energy, Transportation, Products, GDM

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Researchers Counteract Biofuel Toxicity in Microbes

Advanced biofuels are highly touted as potential replacements for gasoline, diesel, and jet fuels. Equally touted is the synthesis of these fuels through the use of microbes. However, many of the best candidate compounds for advanced biofuels are toxic to microbes, which presents a “production versus survival” conundrum.

Posted in: Alternative Fuels, Green Design & Manufacturing, Biomass, Renewable Energy, Energy, Transportation, News, GDM

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