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168 767 (0,115s)

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Mathematical Model of the Low-Temperature Oxidation of Coal in Coal Stockpiles and Dumps

Article defines mathematical model of the low-temperature oxidation of bituminous coal. The mathematical model defines single phase mathematical model are solved as source terms in transport equations. The rate constant def...

BK - Mechanika tekutin

  • 2011
  • D
Result

Modified Arrhenius Equation in Materials Science, Chemistry and Biology

modifications of the Arrhenius equation based on different models have also been publishedThe Arrhenius plot (logarithmic plot vs. inverse temperature) is represented by a straight line if the Arrhenius equation h...

Chemical sciences

  • 2021
  • Jimp
  • Link
Result

Analysis of the arrhenius shape of adatom diffusion coefficient in a surface model with two energy barriers.

Annotation not available...

BM - Fyzika pevných látek a magnetismus

  • 1999
  • Jx
Result

Identification of Arrhenius equation parameters for control purposes

. The second dependence is described by Arrhenius equation. Knowledge of the Arrhenius equation parameters is a key for correct mathematical model composition and also......

BC - Teorie a systémy řízení

  • 2011
  • D
Result

INFLUENCE OF ARRHENIUS COEFFICIENT ON BATCH REACTOR CONTROL

. A mathematical model derived on the basis of heat and mass balance equilibrium is used, a reaction mixture temperature is used as controlled parameter. Studied is the Arrhenius......

JP - Průmyslové procesy a zpracování

  • 2008
  • D
Result

Role of aromaticity in humic substances degradation kinetics using non-arrhenius temperature functions

The degradation kinetics of humic substances (HS), isolated from soil and oxyhumolite, was studied by thermogravimetry. The non-Arrhenius temperature functions were suitable for evaluation of HS thermo-oxidative stability....

EH - Ekologie – společenstva

  • 2008
  • Jx
Result

The quandary aspects of non-isothermal kinetics beyond the ICTAC kinetic committee recommendations

equations, model-free methods, meaning of activation energy, Arrhenius and non- Arrhenius approach, thermal gradients, misfit of Kissinger method and the true meaning the true nonequilibrium degree of conversion, factual a...

BJ - Termodynamika

  • 2015
  • Jx
  • Link
Result

MATHEMATICAL MODELLING OF LOW-TEMPERATURE COAL STOCKPILES IN REAL TERRAIN

. This article deals with the issue of defining the mathematical model of the low-temperature model defines a single-phase model with a porous zone such as coal, where oxygen in a transportequation. The speed constant is de...

JE - Nejaderná energetika, spotřeba a užití energie

  • 2015
  • D
Result

Modelling of changes in properties of alloys at elevated temperatures

the processes can be modelled using the same type of kinetic equations. Instead of the most Arrhenius equation.

JG - Hutnictví, kovové materiály

  • 2007
  • Jx
Result

Rheological properties of honey

on a shear stress. Based on measured values was applied Arrhenius mathematical model. The activation energy was determined with use of this model. Tests have been carried out......

BK - Mechanika tekutin

  • 2012
  • Jx
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