A novel approach to the experimental study on methane/steam reforming kinetics using the Orthogonal Least Squares method
PBN-AR
Instytucja
Wydział Energetyki i Paliw (Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie)
Informacje podstawowe
Główny język publikacji
EN
Czasopismo
Journal of Power Sources
ISSN
0378-7753
EISSN
1873-2755
Wydawca
Elsevier Science BV
Rok publikacji
2014
Numer zeszytu
Strony od-do
245--254
Numer tomu
262
Link do pełnego tekstu
Identyfikator DOI
Liczba arkuszy
0.71
Autorzy
Pozostali autorzy
+ 2
Słowa kluczowe
EN
uncertainty analysis
methane/steam reforming
Generalized Least Squares method
Ni/YSZ catalyst
Streszczenia
Język
EN
Treść
For a mathematical model based on the result of physical measurements, it becomes possible to determine their influence on the final solution and its accuracy. However, in classical approaches, the influence of different model simplifications on the reliability of the obtained results are usually not comprehensively discussed. This paper presents a novel approach to the study of methane/steam reforming kinetics based on an advanced methodology called the Orthogonal Least Squares method. The kinetics of the reforming process published earlier are divergent among themselves. To obtain the most probable values of kinetic parameters and enable direct and objective model verification, an appropriate calculation procedure needs to be proposed. The applied Generalized Least Squares (GLS) method includes all the experimental results into the mathematical model which becomes internally contradicted, as the number of equations is greater than number of unknown variables. The GLS method is adopted to select the most probable values of results and simultaneously determine the uncertainty coupled with all the variables in the system. In this paper, the evaluation of the reaction rate after the pre-determination of the reaction rate, which was made by preliminary calculation based on the obtained experimental results over a Nickel/Yttria-stabilized Zirconia catalyst, was performed. (C) 2014 Elsevier B.V. All rights reserved.
Cechy publikacji
original article
peer-reviewed
Inne
System-identifier
idp:083551
CrossrefMetadata from Crossref logo
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