Validation of MATLAB algorithm to implement a two-step parallel pyrolysis model for the prediction of maximum %char yield
| Autor: | Keavey Osa-Aria, Fidelis I. Abam, Ololade Moses Olatunji, Macmanus Chinenye Ndukwu, I. T. Horsfall, Ojong Elias Ojong |
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| Rok vydání: | 2021 |
| Předmět: |
Work (thermodynamics)
Yield (engineering) Computer simulation Differential equation 020209 energy 020101 civil engineering 02 engineering and technology Function (mathematics) Isothermal process 0201 civil engineering 0202 electrical engineering electronic engineering information engineering Char MATLAB computer Algorithm computer.programming_language Mathematics |
| Zdroj: | Discover Chemical Engineering. 1 |
| ISSN: | 2730-7700 |
| DOI: | 10.1007/s43938-021-00003-w |
| Popis: | Numerical modeling of biomass pyrolysis is becoming a cost and time-saving alternative for experimental investigations, also to predict the yield of the by-products of the entire process. In the present study, a two-step parallel kinetic model was used to predict char yield under isothermal condition. MATLAB ODE45 function codes were employed to solve a set of differential equations that predicts the %char at varying residence times and temperatures. The code shows how the various kinetic parameters and mass of pyrolysis products were determined. Nevertheless, the algorithm used for the prediction was validated with experimental data and results from past works. At 673.15 K, the numerical simulation using ODE45 function gives a char yield of 27.84%. From 573.15 K to 673.15 K, char yield ranges from 31.7 to 33.72% to 27.84% while experimental yield decreases from 44 to 22%. Hence, the error between algorithm prediction and experimental data from literature is − 0.26 and 0.22. Again, comparing the result of the present work with the analytical method from the literature showed a good agreement. |
| Databáze: | OpenAIRE |
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