scholarly journals Corrigendum to “Simulation of reactivity initiated accident thermal transients on nuclear fuels with laser remote heating”

2021 ◽  
Vol 556 ◽  
pp. 153154
Author(s):  
T. Vidal ◽  
L. Gallais ◽  
J. Faucheux ◽  
H. Capdevila ◽  
J. Sercombe ◽  
...  
Keyword(s):  
Nuclear Fuels ◽  
Thermal Transients

scholarly journals Simulation of reactivity initiated accident thermal transients on nuclear fuels with laser remote heating

2020 ◽  
Vol 530 ◽  
pp. 151944 ◽  
Author(s):  
T. Vidal ◽  
L. Gallais ◽  
J. Faucheux ◽  
H. Capdevila ◽  
J. Sercombe ◽  
...  
Keyword(s):  
Nuclear Fuels ◽  
Thermal Transients

Thermal transients of coated optical fibres exposed to microwave power at 2.45 GHz

1990 ◽  
Vol 137 (3) ◽  
pp. 174
Author(s):  
M.J. Sacco ◽  
L.J. Auchterlonie ◽  
A.J. Harris
Keyword(s):  
Microwave Power ◽  
Optical Fibres ◽  
Thermal Transients

Coupled Mass and Heat Transport Models for Nuclear Fuels using Thermodynamic Calculations

2018 ◽  
Author(s):  
Srdjan Simunovic ◽  
Jake W. Mcmurray ◽  
Theodore M. Besmann ◽  
Emily Moore ◽  
Markus H. A. Piro
Keyword(s):  
Heat Transport ◽  
Thermodynamic Calculations ◽  
Nuclear Fuels ◽  
Transport Models

Transportation: Fuel Energies

2017 ◽  
Author(s):  
Peter Rez
Keyword(s):  
Energy Density ◽  
Fossil Fuels ◽  
High Energy ◽  
Ease Of Use ◽  
Low Energy ◽  
High Energy Density ◽  
Nuclear Fuels ◽  
Liquid Hydrocarbons ◽  
Transportation Fuel ◽  
Journey Time

Transportation efficiency can be measured in terms of the energy needed to move a person or a tonne of freight over a given distance. For passengers, journey time is important, so an equally useful measure is the product of the energy used and the time taken for the journey. Transportation requires storage of energy. Rechargeable systems such as batteries have very low energy densities as compared to fossil fuels. The highest energy densities come from nuclear fuels, although, because of shielding requirements, these are not practical for most forms of transportation. Liquid hydrocarbons represent a nice compromise between high energy density and ease of use.

scholarly journals Nitrification Process in a Nuclear Wastewater with High Load of Nitrogen, Uranium and Organic Matter under ORP Controlled

Water ◽  
2021 ◽  
Vol 13 (11) ◽  
pp. 1607
Author(s):  
Mariano Venturini ◽  
Ariana Rossen ◽  
Patricia Silva Paulo
Keyword(s):  
Ammonia Oxidation ◽  
High Load ◽  
Nuclear Fuels ◽  
Monod Model ◽  
Nernst Equation ◽  
Nitrification Process ◽  
Real Wastewater ◽  
High Concentrations ◽  
Wastewater Samples ◽  
Very High

To produce nuclear fuels, it is necessary to convert uranium′s ore into UO2-ceramic grade, using several quantities of kerosene, methanol, nitric acid, ammonia, and, in low level, tributyl phosphate (TBP). Thus, the effluent generated by nuclear industries is one of the most toxic since it contains high concentrations of dangerous compounds. This paper explores biological parameters on real nuclear wastewater by the Monod model in an ORP controlled predicting the specific ammonia oxidation. Thermodynamic parameters were established using the Nernst equation to monitor Oxiders/Reductors relationship to obtain a correlation of these parameters to controlling and monitoring; that would allow technical operators to have better control of the nitrification process. The real nuclear effluent is formed by a mixture of two different lines of discharges, one composed of a high load of nitrogen, around 11,000 mg/L (N-NH4+-N-NO3−) and 600 mg/L Uranium, a second one, proceeds from uranium purification, containing TBP and COD that have to be removed. Bioprocesses were operated on real wastewater samples over 120 days under controlled ORP, as described by Nernst equations, which proved to be a robust tool to operate nitrification for larger periods with a very high load of nitrogen, uranium, and COD.

scholarly journals The Effects of Fusion Reactor Thermal Transients on the Microstructure of Eurofer-97 Steel

2021 ◽  
pp. 153084
Author(s):  
D. Kumar ◽  
J. Hargreaves ◽  
A. Bharj ◽  
A. Scorror ◽  
L.M. Harding ◽  
...  
Keyword(s):  
Fusion Reactor ◽  
Thermal Transients ◽  
Eurofer 97

TAF-ID: An international thermodynamic database for nuclear fuels applications

Calphad ◽  
2021 ◽  
Vol 72 ◽  
pp. 102212
Author(s):  
C. Guéneau ◽  
N. Dupin ◽  
L. Kjellqvist ◽  
E. Geiger ◽  
M. Kurata ◽  
...  
Keyword(s):  
Thermodynamic Database ◽  
Nuclear Fuels

Solar Energy—A Practical Alternative to Fossil and Nuclear Fuels

1974 ◽  
Vol 1 (3) ◽  
pp. 249-269
Author(s):  
HAROLD E. KETTERER ◽  
JOHN R. SCHMIDHAUSER
Keyword(s):  
Solar Energy ◽  
Nuclear Fuels

A Control-Oriented Polytropic Model of SI Engine Intake Manifold

2003 ◽  
Author(s):  
Josˇko Deur ◽  
Davor Hrovat ◽  
Josˇko Petric´ ◽  
Zˇeljko Sˇitum
Keyword(s):  
Heat Transfer ◽  
Intake Manifold ◽  
Simple Extension ◽  
Si Engine ◽  
Polytropic Model ◽  
Back Flow ◽  
Thermal Transients ◽  
Three State Model ◽  
Transfer Properties ◽  
Variant Structure

The paper presents experimental results which show significant changes of the intake manifold air temperature during fast tip-in/tip-out engine transients. An adequate two-state polytropic manifold model is developed and experimentally validated. An emphasis is on the derivation and parameterization of a time-variant structure of the heat transfer coefficient. The polytropic manifold model is extended to a three-state form for the more general case of different heat transfer properties for the manifold plenum and runners. An influence of the engine back flow on the runner thermal transients is observed. A simple extension of the three-state model with the back flow effect is proposed.

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