scholarly journals Modeling and simulation of wood pyrolysis process using COMSOL Multiphysics

2022 ◽  
pp. 100941
Author(s):  
Shikha Solanki ◽  
Bhargav Baruah ◽  
Pankaj Tiwari
Keyword(s):  
Modeling And Simulation ◽  
Comsol Multiphysics ◽  
Pyrolysis Process ◽  
Wood Pyrolysis

scholarly journals Modeling and Simulation of MEMS based Pressure Sensor for Industrial Applications

2019 ◽  
Vol 9 (1) ◽  
pp. 1739-1743
Keyword(s):  
Modeling And Simulation ◽  
Pressure Sensor ◽  
Environmental Conditions ◽  
High Sensitivity ◽  
Industrial Applications ◽  
Comsol Multiphysics ◽  
Circular Membrane ◽  
Dimensional Changes ◽  
Simulation Results ◽  
Input Load

This paper presents an overview of design, modeling and simulation of MEMS pressure sensor is using COMSOL Multiphysics V4.3b. An attempt has been made to achieve high sensitivity by providing different structures for membrane (Circular, square, rectangle & triangle) with uniform surface area and thickness. Further, simulations have been carried out with various loads ranging from 0.1 to 1MPa assigning three materials viz., InP, GaAs and Silicon. From the analyses of simulation results, it has been observed that the pressure sensor with circular membrane provided InP material found to exhibit more deformation and high sensitivity of 17.3×10-12 for 10 µm thickness and 50.8×10-12 for 7 µm thickness. The reasons for enhancement in the sensitivity are discussed in detail as function of input load, dimensional changes of diaphragm and materials addition. These studies are highly useful to check and compute pressure in various industrial and environmental conditions.

scholarly journals Modelling analysis of pyrolysis process with thermal effects by using Comsol multiphysics

2021 ◽  
pp. 101625
Author(s):  
Widya Wijayanti ◽  
Musyaroh ◽  
Mega Nur Sasongko ◽  
Rizky Kusumastuti ◽  
Sasmoko
Keyword(s):  
Thermal Effects ◽  
Comsol Multiphysics ◽  
Pyrolysis Process ◽  
Modelling Analysis

scholarly journals Simulation of Wood Combustion in PATO Using a Detailed Pyrolysis Model Coupled to fireFoam

2021 ◽  
Vol 11 (22) ◽  
pp. 10570
Author(s):  
Hermes Scandelli ◽  
Azita Ahmadi-Senichault ◽  
Jean Lachaud ◽  
Franck Richard
Keyword(s):  
Three Dimensional ◽  
Chemical Species ◽  
Pyrolysis Process ◽  
Wood Combustion ◽  
Gaseous Species ◽  
Fire Propagation ◽  
Wood Pyrolysis ◽  
Pyrolysis Model ◽  
And Behavior ◽  
Pyrolysis Gases

The numerical simulation of fire propagation requires capturing the coupling between wood pyrolysis, which leads to the production of various gaseous species, and the combustion of these species in the flame, which produces the energy that sustains the pyrolysis process. Experimental and numerical works of the fire community are targeted towards improving the description of the pyrolysis process to better predict the rate of production and the chemical nature of the pyrolysis gases. We know that wood pyrolysis leads to the production of a large variety of chemical species: water, methane, propane, carbon monoxide and dioxide, phenol, cresol, hydrogen, etc. With the idea of being able to capitalize on such developments to study more accurately the physics of fire propagation, we have developed a numerical framework that couples a detailed three-dimensional pyrolysis model and fireFoam. In this article, we illustrate the capability of the simulation tool by treating the combustion of a wood log. Wood is considered to be composed of three phases (cellulose, hemicellulose and lignin), each undergoing parallel degradation processes leading to the production of methane and hydrogen. We chose to simplify the gas mixture for this first proof of concept of the coupling of a multi-species pyrolysis process and a flame. In the flame, we consider two separate finite-rate combustion reactions for methane and hydrogen. The flame evolves during the simulation according to the concentration of the two gaseous species produced from the material. It appears that introducing different pyrolysis species impacts the temperature and behavior of the flame.

scholarly journals Actived carbon from teak wood, jackfruit wood, and mango wood pyrolysis process

2019 ◽  
Vol 1217 ◽  
pp. 012055 ◽  
Author(s):  
R D Ratnani ◽  
F H Purbacaraka ◽  
I Hartati ◽  
I Syafaat
Keyword(s):  
Pyrolysis Process ◽  
Wood Pyrolysis ◽  
Teak Wood ◽  
Actived Carbon

scholarly journals ITERATIVE ALGORITHM OF THERMOKINETIC PARAMETERS ESTIMATION FOR WOOD PYROLYSIS PROCESS BY EXPERIMENTAL THERMOGRAVIMETRICAL DATA

2013 ◽  
Vol 6 (10) ◽  
pp. 24-28
Author(s):  
Sergey, Andreevich Loshchilov ◽  
◽  
Dmitry Alexandrovich Maslennikov ◽  
Liliya Yuryevna Kataeva ◽  
◽  
...  
Keyword(s):  
Iterative Algorithm ◽  
Parameters Estimation ◽  
Thermokinetic Parameters ◽  
Pyrolysis Process ◽  
Wood Pyrolysis
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