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The Importance of High Temporal Resolution in Modeling Renewable Energy Penetration Scenarios

Description: Traditionally, modeling investment and dispatch problems in electricity economics has been limited by computation power. Due to this limitation, simplifications are applied. One common practice, for example, is to reduce the temporal resolution of the dispatch by clustering similar load levels. The increase of intermittent electricity from renewable energy sources (RES-E) changes the validity of this assumption. RES-E already cover a certain amount of the total demand. This leaves an increasing… more
Date: October 8, 2010
Creator: Nicolosi, Marco; Mills, Andrew D & Wiser, Ryan H
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Sythesis of metal sulfide nanomaerials via thermal decomposition of single-source percursors

Description: In this report, we present a synthetic method for the formation of cuprous sulfide (Cu2S) and lead sulfide (PbS) nanomaterials directly on substrates from the thermolysis of single-source precursors. We find that the final morphology and arrangement of the nanomaterials may be controlled through the concentration of the dissolved precursors and choice of solvent. One-dimensional (1-D) morphologies may also be grown onto substrates with the addition of a metal catalyst layer through solution-liq… more
Date: June 3, 2010
Creator: Jen-La Plante, Ilan; Zeid, Tahani W.; Yang, Peidong & Mokari, Taleb
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Multivariate analysis of progressive thermal desorption coupled gas chromatography-mass spectrometry.

Description: Thermal decomposition of poly dimethyl siloxane compounds, Sylgard{reg_sign} 184 and 186, were examined using thermal desorption coupled gas chromatography-mass spectrometry (TD/GC-MS) and multivariate analysis. This work describes a method of producing multiway data using a stepped thermal desorption. The technique involves sequentially heating a sample of the material of interest with subsequent analysis in a commercial GC/MS system. The decomposition chromatograms were analyzed using multiva… more
Date: September 1, 2010
Creator: Van Benthem, Mark Hilary; Mowry, Curtis Dale; Kotula, Paul Gabriel & Borek, Theodore Thaddeus, III
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Decomposition of Rare Earth Loaded Resin Particles

Description: The Fuel Cycle R and D (FCR and D) program within the Department of Energy Office of Nuclear Energy (DOE-NE) is evaluating nuclear fuel cycle options, including once-through, modified open, and fully closed cycles. Each of these scenarios may utilize quite different fuel management schemes and variation in fuel types may include high thermal conductivity UO{sub 2}, thoria-based, TRISO, metal, advanced ceramic (nitride, carbide, composite, etc.), and minor actinide (MA) bearing fuels and targets… more
Date: September 1, 2010
Creator: Voit, Stewart L & Rawn, Claudia J
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Pressure-induced isostructural transition in PdN2

Description: We show that a synthesized Pd-N compound crystallize into the pyrite structure by comparison of experimental and calculated Raman intensities. The decreasing Raman intensities with decreasing pressure is explained by a closing of the fundamental band gap. We further discuss the experimental decomposition of this compound at 11 GPa in terms of an isostructural transition within the pyrite structure.
Date: March 5, 2010
Creator: Aberg, D; Erhart, P; Crowhurst, J; Zaug, J M; Goncharov, A F & Sadigh, B
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Measurement of Hydrogen Purge Rates in Parabolic Trough Receiver Tubes: Preprint

Description: The purpose of this research is to investigate and develop methods to remove hydrogen centrally from commercial parabolic trough power plants. A mathematical model was developed that tracks the generation and transport of hydrogen within an operating plant. Modeling results predicted the steady-state partial pressure of hydrogen within the receiver annuli to be ~1 torr. This result agrees with measured values for the hydrogen partial pressure. The model also predicted the rate at which hydrogen… more
Date: October 1, 2010
Creator: Glatzmaier, G. C.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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