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Energy

Conventional energy

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Displaying 26 - 50 of 122

Measurement Challenges and Metrology for Monitoring CO2 Emissions from Smokestacks Workshop Summary

January 20, 2016
Author(s)
Aaron N. Johnson, Rodney A. Bryant, Tamae M. Wong, James R. Whetstone, Eric Harman, Woong Kang, Keith A. Gillis, Hsin-Hung Lee, Iosif I. Shinder, Liang Zhang
On April 20-21, 2015, NIST hosted a workshop that, through measurement science, enabled the owners of stationary sources (primarily the electric power industry) and their regulatory agencies (federal and state) to better characterize greenhouse gas (GHG)

Flexible metal-organic framework compounds: In situ studies for selective CO2 capture

June 19, 2015
Author(s)
Andrew J. Allen, Laura Espinal, Winnie K. Wong-Ng, Wendy Queen, Craig Brown, Steven R. Kline, Kristi L. Kauffman, Jeffrey T. Culp
Results from in situ experiments are presented to correlate carbon capture with dynamic structural changes in two flexible metal-organic framework (MOF) materials: porous coordination polymers (PCPs) exhibiting promising carbon dioxide adsorption

Interrogating the Carbon and Oxygen K-edge NEXAFS of a CO2-dosed Hyperbranched Aminosilica

December 19, 2014
Author(s)
Laura Espinal, Martin L. Green, Dean M. DeLongchamp, Watcharop Chaikittisilp, Jarod C. Horn, Miles Sakwa-Novak, Cherno Jaye, Daniel A. Fischer, Nicholas Brunelli, Christopher Jones
Near edge x-ray absorption fine structure (NEXAFS) spectroscopy was used to study the adsorption of CO2 in a hyperbranched aminosilica (HAS) compound, a porous solid state material with great potential for carbon capture applications. After dosing a

An Equation of State for the Thermodynamic Properties of Cyclohexane

December 5, 2014
Author(s)
Yong Zhou, Jun Liu, Steven Penoncello, Eric Lemmon
In this work, an equation of state for cyclohexane has been developed using the Helmholtz energy as the fundamental property with independent variables of density and temperature. Multi-property fitting technology was used to fit the equation of state that

A thermodynamic investigation of the cellulose allomorphs: cellulose(am), cellulose I?(cr), cellulose II(cr), and cellulose III(cr)

November 11, 2014
Author(s)
Robert N. Goldberg, Jacob Schliesser, Ashutosh Mittal, Stephen R. Decker, Ana Filipa L. Santos, Vera L. Freitas, Aaron A. Urbas, Brian E. Lang, Christian Heisse, Maria D. Ribeiro da Silva, Brian F. Woodfield, Rui Katahira, Wei Wang, David K. Johnson
The thermochemistry of samples of amorphous cellulose, cellulose I, cellulose II, and cellulose III was studied by using oxygen bomb calorimetry, solution calorimetry in which the solvent was cadoxen, and with a Physical Property Measurement System (PPMS)

A perspective on the origin of lubricity in petroleum distillate motor fuels

September 15, 2014
Author(s)
Peter Y. Hsieh, Thomas J. Bruno
Lubricity, or a substance's effect on friction and wear between two surfaces in relative motion, is affected by both chemical and physical mechanisms present at a sliding contact. The inherent lubricity of distillate motor fuels stems from surface-active

Determination of Trace Sulfur in Biodiesel and Diesel Standard Reference Materials by Isotope Dilution Sector Field Inductively Coupled Plasma Mass Spectrometry

November 14, 2013
Author(s)
Steven J. Christopher, Stephen E. Long, Renata Amais, Joaquim N?ga
A method is described for quantification of sulfur at low concentrations on the order of 10 µg g-1 in biodiesel and diesel fuels using double isotope dilution and sector field inductively coupled plasma mass spectrometry (ID-SF-ICP-MS). Closed vessel

Wide Ranging Viscosity Measurements of Rocket Propellant RP-2

August 28, 2013
Author(s)
Arno D. Laesecke, Dylan S. Cousins
Expanding on earlier viscosity measurements of rocket propellants from 293 K to 373 K at atmospheric pressure, the viscosity of rocket propellant RP-2 was measured from 270 K to 450 K with pressures to 137 MPa. The instrument was an oscillating piston

Mass diffusion of organic fluids: a molecular dynamics perspective

May 31, 2013
Author(s)
Alexander Y. Smolyanitsky, Andrei F. Kazakov, Thomas J. Bruno, Marcia L. Huber
A well-established interaction potential, the Optimized Potential for Liquid Simulation All-Atom (OPLS-AA) force-field, within the MD framework was used to determine self- and mutual diffusivity of several near-critical and supercritical fluids. The test

Assessment of the Thermophysical Properties of Thermally Stressed RP-1 and RP-2

May 2, 2013
Author(s)
Tara J. Fortin, Thomas J. Bruno
Density, speed of sound, and viscosity have been measured for samples of RP-1 and RP-2 that were stressed for 0.5 min at 475 °C and 510 °C at a pressure of 17 MPa. Density and speed of sound were measured from 5 °C to 50 °C for the samples stressed at 475

Advanced Distillation Curve Analysis of Marine Diesel Fuel

January 17, 2013
Author(s)
Peter Y. Hsieh, Kathryn R. Abel, Thomas J. Bruno
Ocean-going ships burn heavy fuel oil. The combustion of heavy fuel oil in marine diesel engines emits nitrogen oxides, sulfur oxides, and particulates into the air. Growing public concern over air quality has led to increased scrutiny of heavy fuel oil as
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