Investigations on Anti-biofouling Zwitterionic Coatings for MHK Is Now in Press

Sandia’s Marine Hydrokinetic (MHK) Advanced Materials program has a new publication on the antifouling efficacy of zwiterionic coatings. These polymeric coatings contain no metal and have both positive and negative chemical charges as part of their molecular structure. The coating was investigated in response to finding environmentally friendly materials for MHK devices by the Sandia-UNM [...]

Sandia Develops Stochastic Production Cost Model Simulator for Electric Power Systems

Sandia has developed a software toolkit that uses stochastic programming to perform power system production cost model simulations. Named PRESCIENT, the software produces probabilistic forecasts automatically from deterministic historical forecasts for load, solar, and/or wind power production and their respective actuals, using a technology known as epi-splines. An example of a probablistic solar forecast [...]

New CREW Database Receives First Set of Data

The CREW public benchmark represents analysis of US wind fleet performance based on aggregated fleet reliability data. Sandia’s Continuous Reliability Enhancement for Wind (CREW) project has received its first large set of data, which reassessed its data-collection efforts to target wind-farm owner/operators that have in-house reliability data collection tools. After a lengthy negotiation [...]

Aerodynamic Wind-Turbine Blade Design for the National Rotor Testbed

The NRT blade shape as viewed from the tip and at an elevation angle of 30° above the suction surface. Sandia has designed a new wind-turbine blade for the National Rotor Testbed (NRT) project and for future experiments at the Scaled Wind Farm Technology (SWiFT) facility with a specific focus on scaled wakes. [...]

Sandia Research to Be Featured on Upcoming Cover of Journal of Physical Chemistry B

Several Sandia Joint BioEnergy Institute (JBEI) researchers, in collaboration with others in Kentucky and India, have published, “Theoretical insights into the role of water in the dissolution of cellulose using IL/water mixed solvent systems,” which the editors selected for Journal of Physical Chemistry B’s Nov. 12th issue cover. The continued reliance of the global transportation energy [...]

JBEI Featured in Chemical & Engineering News Cover Article

Researchers at the Joint BioEnergy Institute (JBEI) are working to transform biomass into energy-rich fuel molecules. Headquartered in Emeryville, California, the Joint BioEnergy Institute (JBEI) is now a member of the elite “100/ 500 Club,” having filed its 100th patent application and published its 500th scientific paper. (Photo by Roy Kaltschmidt) The Chemical [...]

CRF Experiment Confirms Accepted Oxidation Scheme of Proposed Diesel Alternative: Dimethyl Ether

Combustion Research Facility (CRF) researchers Kai Moshammer, Ahren Jasper, Arnas Lucassen, Arkke Eskola, Craig Taatjes, and Nils Hansen (all in Sandia’s Combustion Chemistry Dept.) as part of an international collaboration reported, in Journal of Physical Chemistry A, detecting and identifying previously undiscovered partially oxidized intermediates. This work provides experimental confirmation of the generally accepted dimethyl [...]

Much Cheaper, More Abundant Catalyst May Lower Hydrogen-Powered Car Costs

Sandia post-doctoral fellow Stan Chou demonstrates the reaction of more efficiently catalyzing hydrogen. In this simulation, the color is from dye excited by light and generating electrons for the catalyst molybdenum disulfide to evolve hydrogen. (Photo by Randy Montoya) Sandia researchers, at the Sandia-University of New Mexico Advanced Materials Laboratory, have engineered a [...]

Sandia-Developed LED Pulser Delivers Laser-Like Performance at Fraction of the Cost

The high-brightness, rapidly pulsed, multicolor light-emitting diode (LED) driver delivers lighting performance that exceeds that of conventional (laser/arc-light) sources for scientific, industrial, or commercial uses at a fraction of the cost. “I had the idea a few years ago to see if high-powered multicolored LEDs could be pulsed rapidly by an electronic circuit to produce [...]

Sandia Assists NASA in Understanding Launch-Area Accidents

Curiosity’s multi-mission radioisotope thermoelectric generator on Mars. Some NASA spacecraft, those which operate on the surface of other planets or are too far from the sun, require the use of radioisotope power systems (fueled with plutonium dioxide) to produce electricity and heat. In the unlikely event of an early launch accident, these DOE-provided [...]