Modelling analysis of pyrolysis process with thermal effects by using Comsol Multiphysics

Numerical modelling of biomass pyrolysis in a packed bed reactor conducted with heating rate 1073 K/h was performed in this study. The devised modelling is a very effective way to analyse and evaluate physical phenomena for designing and optimizing pyrolysis process. As the shape of wood used was in...

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Autores principales:	Widya Wijayanti, Musyaroh, Mega Nur Sasongko, Rizky Kusumastuti, Sasmoko
Formato:	article
Lenguaje:	EN
Publicado:	Elsevier 2021
Materias:	Modelling Pyrolysis Thermal Effects Comsol Engineering (General). Civil engineering (General) TA1-2040
Acceso en línea:	https://doaj.org/article/519ab175dc2746e595a581d89d640945
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spelling	oai:doaj.org-article:519ab175dc2746e595a581d89d6409452021-11-14T04:32:57ZModelling analysis of pyrolysis process with thermal effects by using Comsol Multiphysics2214-157X10.1016/j.csite.2021.101625https://doaj.org/article/519ab175dc2746e595a581d89d6409452021-12-01T00:00:00Zhttp://www.sciencedirect.com/science/article/pii/S2214157X21007887https://doaj.org/toc/2214-157XNumerical modelling of biomass pyrolysis in a packed bed reactor conducted with heating rate 1073 K/h was performed in this study. The devised modelling is a very effective way to analyse and evaluate physical phenomena for designing and optimizing pyrolysis process. As the shape of wood used was in the form of powder, the multi-phase flow was simulated using the heat transfer in porous medium and fluid flow. It was coupled to describe the pyrolysis process of woody biomass in a packed bed. Due to thermal effect being the most crucial matter in the designing of reactor, this work investigated the temperature and velocity distribution during the process. Besides, this study made predictions in other biomass feedstocks; bamboo and bark. The experimental data were obtained by means of a laboratory-scale real pilot plant in the packed bed furnace. The pyrolysis process lasted for 120 min. The temperature variations for investigating the thermal effects in pyrolysis process took place from 523 K to 923 K with heat source on the furnace wall. The numerical modelling indicated a good agreement between the experimental and calculated results in their validation. The pyrolysis temperature had the greatest effect on the heat and mass distribution during the process influencing the product yield and the direction of experimental heat transfers in the biomass packed bed were confirmed well by surface contour temperature with the calculated numerical model. However, there were slight differences due to water evaporation and heat reaction strongly influencing the heat transfers in the packed bed, affecting the absorption of heat energy in the pyrolysis process. In addition, the chemical properties of wood components greatly affected their physical properties, mostly influencing the heat transfers in the packed bed which dominantly occurred as thermal conduction. This had an impact on the amount of heat capacity of each feedstocks. Among the biomass feedstocks, the calculated results shows that the distribution temperature of bamboo was the highest in the study due to its properties.Widya Wijayanti MusyarohMega Nur SasongkoRizky Kusumastuti SasmokoElsevierarticleModellingPyrolysisThermalEffectsComsolEngineering (General). Civil engineering (General)TA1-2040ENCase Studies in Thermal Engineering, Vol 28, Iss , Pp 101625- (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Modelling Pyrolysis Thermal Effects Comsol Engineering (General). Civil engineering (General) TA1-2040
spellingShingle	Modelling Pyrolysis Thermal Effects Comsol Engineering (General). Civil engineering (General) TA1-2040 Widya Wijayanti Musyaroh Mega Nur Sasongko Rizky Kusumastuti Sasmoko Modelling analysis of pyrolysis process with thermal effects by using Comsol Multiphysics
description	Numerical modelling of biomass pyrolysis in a packed bed reactor conducted with heating rate 1073 K/h was performed in this study. The devised modelling is a very effective way to analyse and evaluate physical phenomena for designing and optimizing pyrolysis process. As the shape of wood used was in the form of powder, the multi-phase flow was simulated using the heat transfer in porous medium and fluid flow. It was coupled to describe the pyrolysis process of woody biomass in a packed bed. Due to thermal effect being the most crucial matter in the designing of reactor, this work investigated the temperature and velocity distribution during the process. Besides, this study made predictions in other biomass feedstocks; bamboo and bark. The experimental data were obtained by means of a laboratory-scale real pilot plant in the packed bed furnace. The pyrolysis process lasted for 120 min. The temperature variations for investigating the thermal effects in pyrolysis process took place from 523 K to 923 K with heat source on the furnace wall. The numerical modelling indicated a good agreement between the experimental and calculated results in their validation. The pyrolysis temperature had the greatest effect on the heat and mass distribution during the process influencing the product yield and the direction of experimental heat transfers in the biomass packed bed were confirmed well by surface contour temperature with the calculated numerical model. However, there were slight differences due to water evaporation and heat reaction strongly influencing the heat transfers in the packed bed, affecting the absorption of heat energy in the pyrolysis process. In addition, the chemical properties of wood components greatly affected their physical properties, mostly influencing the heat transfers in the packed bed which dominantly occurred as thermal conduction. This had an impact on the amount of heat capacity of each feedstocks. Among the biomass feedstocks, the calculated results shows that the distribution temperature of bamboo was the highest in the study due to its properties.
format	article
author	Widya Wijayanti Musyaroh Mega Nur Sasongko Rizky Kusumastuti Sasmoko
author_facet	Widya Wijayanti Musyaroh Mega Nur Sasongko Rizky Kusumastuti Sasmoko
author_sort	Widya Wijayanti
title	Modelling analysis of pyrolysis process with thermal effects by using Comsol Multiphysics
title_short	Modelling analysis of pyrolysis process with thermal effects by using Comsol Multiphysics
title_full	Modelling analysis of pyrolysis process with thermal effects by using Comsol Multiphysics
title_fullStr	Modelling analysis of pyrolysis process with thermal effects by using Comsol Multiphysics
title_full_unstemmed	Modelling analysis of pyrolysis process with thermal effects by using Comsol Multiphysics
title_sort	modelling analysis of pyrolysis process with thermal effects by using comsol multiphysics
publisher	Elsevier
publishDate	2021
url	https://doaj.org/article/519ab175dc2746e595a581d89d640945
work_keys_str_mv	AT widyawijayanti modellinganalysisofpyrolysisprocesswiththermaleffectsbyusingcomsolmultiphysics AT musyaroh modellinganalysisofpyrolysisprocesswiththermaleffectsbyusingcomsolmultiphysics AT meganursasongko modellinganalysisofpyrolysisprocesswiththermaleffectsbyusingcomsolmultiphysics AT rizkykusumastuti modellinganalysisofpyrolysisprocesswiththermaleffectsbyusingcomsolmultiphysics AT sasmoko modellinganalysisofpyrolysisprocesswiththermaleffectsbyusingcomsolmultiphysics
_version_	1718429956134928384

Modelling analysis of pyrolysis process with thermal effects by using Comsol Multiphysics

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