Results 21 to 30 of about 48,520 (269)

Chemical Looping Combustion: A Brief Overview

open access: yesEnergies, 2022
The current development of chemical looping combustion (CLC) technology is presented in this paper. This technique of energy conversion enables burning of hydrocarbon fuels with dramatically reduced CO2 emission into the atmosphere, since the inherent ...
Tomasz Czakiert   +3 more
doaj   +1 more source

Neutron capture cross section and capture gamma-ray spectra of 138Ba in the keV-neutron energy region

open access: yesEPJ Web of Conferences, 2015
The neutron capture cross sections and the capture γ-ray spectra of 138Ba were measured in the astrophysically important energy region. Measurements were made at neutron energies from 15 to 80 keV.
Katabuchi T.   +4 more
doaj   +1 more source

Interfacial Heat Transfer of Condensation Bubble with Consideration of Bubble Number Distribution in Subcooled Flow Boiling

open access: yesJournal of Thermal Science and Technology, 2013
For predicting the void fraction distribution in subcooled flow boiling, it is necessary to measure the interfacial heat transfer coefficient—which determines the amount of condensation rate of vapor bubble—with high accuracy.
Noriaki INABA   +2 more
doaj   +1 more source

REACTOR PERFORMANCE IMPROVEMENT OPTIONS TO SUSTAIN HIGH FLUX ISOTOPE REACTOR LEADERSHIP INTO THE FUTURE* [PDF]

open access: yesEPJ Web of Conferences, 2021
The mission of the Neutron Sciences Directorate (NScD) at the U.S. Department of Energy’s Oak Ridge National Laboratory (ORNL) is the undertaking of high-impact research into the structure and properties of materials across the spectrum of biology ...
Chandler D., Betzler B. R., Cook D. H.
doaj   +1 more source

Testing of the ABBN-RF multigroup data library in photon transport calculations

open access: yesEPJ Web of Conferences, 2017
Gamma radiation is produced via both of nuclear fuel and shield materials. Photon interaction is known with appropriate accuracy, but secondary gamma ray production known much less. The purpose of this work is studying secondary gamma ray production data
Koscheev Vladimir   +3 more
doaj   +1 more source

Neutron capture cross section and capture gamma-ray spectra of 89Y

open access: yesEPJ Web of Conferences, 2016
The neutron capture cross section of 89Y was measured by the time-of-flight method in an energy range from 15 to 100 keV. A pulse-height weighting technique was applied to derive the capture yield.
Katabuchi Tatsuya   +7 more
doaj   +1 more source

The Evolution of the Fed Batch Ethoxylation Reactors to Produce the Non-Ionic Surfactants

open access: yesFrontiers in Chemical Engineering, 2021
The most recent reactor technology to produce non-ionic surfactants via ethoxylation reaction is illustrated in the present work. The most advanced reactors are deeply illustrated for what concerns the working principle and the main performance.
Martino Di Serio   +3 more
doaj   +1 more source

Quantification of the Lifecycle Greenhouse Gas Emissions from Nuclear Power Generation Systems

open access: yesEnergies, 2016
This paper statistically quantifies the lifecycle greenhouse gas (GHG) emissions from six distinct reactor-based (boiling water reactor (BWR), pressurized water reactor (PWR), light water reactor (LWR), heavy-water-moderated reactor (HWR), gas-cooled ...
Akhil Kadiyala   +2 more
doaj   +1 more source

Steady state analysis of the flow continuous stirred tank reactor on instance exothermic dimerization reaction

open access: yesТонкие химические технологии
Objectives. Due to the complexity of their behavior, chemical process flowsheets are characterized by steady state multiplicity, in other words, the presence of multiple steady state operating modes having the same set of parameters.
N. A. Korol’kova   +2 more
doaj   +1 more source

Heat transfer deterioration mechanism for water at supercritical pressure

open access: yesInternational Journal of Thermofluids, 2020
Heat transfer deterioration (HTD) phenomena in supercritical water is one of the most thermal hydraulic critical issues for supercritical reactors. The onset of heat transfer deterioration and bouncy effect have been studied in details, however limited ...
Salah El-Din El-Morshedy   +3 more
doaj   +1 more source

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