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INVESTIGATION ON BIOGAS DISPERSION USING COMPUTATIONAL FLUID DYNAMICS MODELING

Biogas technology is developing rapidly in the recent year due to increment of dependency in human on the renewable energy. Process safety of biogas plant is one of the current issues which is very critical for the process operations. Several cases of fire and explosion related to biofuel plant have...

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Main Author: TIONG , LAURA SIEW ZIN
Format: Final Year Project
Language:English
Published: UNIVERSITI TEKNOLOGI PETRONAS 2012
Subjects:
TP Chemical technology
Online Access:http://utpedia.utp.edu.my/6109/1/LAURA%20TIONG_11963_FINAL%20DISSERTATION.pdf
http://utpedia.utp.edu.my/6109/
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spelling my-utp-utpedia.61092017-01-25T09:40:17Z http://utpedia.utp.edu.my/6109/ INVESTIGATION ON BIOGAS DISPERSION USING COMPUTATIONAL FLUID DYNAMICS MODELING TIONG , LAURA SIEW ZIN TP Chemical technology Biogas technology is developing rapidly in the recent year due to increment of dependency in human on the renewable energy. Process safety of biogas plant is one of the current issues which is very critical for the process operations. Several cases of fire and explosion related to biofuel plant have alarmed the industries on the potential hazard from current running biogas plant. Limited failure data is available for consequence risk analysis to understand scenario of biogas dispersion. Thus, a study is carried out on the dispersion model of biogas to show the behavior of biogas from pressurized release into the environment by using Computational Fluid Dynamics (CFD) modeling. CFD is a branch of fluid mechanics that uses numerical method and algorithm to solve the problem which involves fluid flow. The code used is CFD-FLUENT by ANSYS Company. CFD dispersion model developed is validated against IP Model Code and PHAST which shows close agreement with deviation at 18% and is acceptable. Gas dispersion study is based on influence of wind speed and the presence of obstacle. Lower wind speed will pose higher risk of fire and explosion due to stable atmospheric turbulence. Presence of obstacle will cause the gas to be easily trapped and create flammable region. Biogas shows shorter hazardous distance as compared to that of methane gas. It can be explained as the lower composition of methane in biogas. Thus, biogas is less flammable than pure methane gas. UNIVERSITI TEKNOLOGI PETRONAS 2012-09 Final Year Project NonPeerReviewed application/pdf en http://utpedia.utp.edu.my/6109/1/LAURA%20TIONG_11963_FINAL%20DISSERTATION.pdf TIONG , LAURA SIEW ZIN (2012) INVESTIGATION ON BIOGAS DISPERSION USING COMPUTATIONAL FLUID DYNAMICS MODELING. UNIVERSITI TEKNOLOGI PETRONAS, UNIVERSITI TEKNOLOGI PETRONAS. (Unpublished)
institution Universiti Teknologi Petronas
building UTP Resource Centre
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Teknologi Petronas
content_source UTP Electronic and Digitized Intellectual Asset
url_provider http://utpedia.utp.edu.my/
language English
topic TP Chemical technology
spellingShingle TP Chemical technology
TIONG , LAURA SIEW ZIN
INVESTIGATION ON BIOGAS DISPERSION USING COMPUTATIONAL FLUID DYNAMICS MODELING
description Biogas technology is developing rapidly in the recent year due to increment of dependency in human on the renewable energy. Process safety of biogas plant is one of the current issues which is very critical for the process operations. Several cases of fire and explosion related to biofuel plant have alarmed the industries on the potential hazard from current running biogas plant. Limited failure data is available for consequence risk analysis to understand scenario of biogas dispersion. Thus, a study is carried out on the dispersion model of biogas to show the behavior of biogas from pressurized release into the environment by using Computational Fluid Dynamics (CFD) modeling. CFD is a branch of fluid mechanics that uses numerical method and algorithm to solve the problem which involves fluid flow. The code used is CFD-FLUENT by ANSYS Company. CFD dispersion model developed is validated against IP Model Code and PHAST which shows close agreement with deviation at 18% and is acceptable. Gas dispersion study is based on influence of wind speed and the presence of obstacle. Lower wind speed will pose higher risk of fire and explosion due to stable atmospheric turbulence. Presence of obstacle will cause the gas to be easily trapped and create flammable region. Biogas shows shorter hazardous distance as compared to that of methane gas. It can be explained as the lower composition of methane in biogas. Thus, biogas is less flammable than pure methane gas.
format Final Year Project
author TIONG , LAURA SIEW ZIN
author_facet TIONG , LAURA SIEW ZIN
author_sort TIONG , LAURA SIEW ZIN
title INVESTIGATION ON BIOGAS DISPERSION USING COMPUTATIONAL FLUID DYNAMICS MODELING
title_short INVESTIGATION ON BIOGAS DISPERSION USING COMPUTATIONAL FLUID DYNAMICS MODELING
title_full INVESTIGATION ON BIOGAS DISPERSION USING COMPUTATIONAL FLUID DYNAMICS MODELING
title_fullStr INVESTIGATION ON BIOGAS DISPERSION USING COMPUTATIONAL FLUID DYNAMICS MODELING
title_full_unstemmed INVESTIGATION ON BIOGAS DISPERSION USING COMPUTATIONAL FLUID DYNAMICS MODELING
title_sort investigation on biogas dispersion using computational fluid dynamics modeling
publisher UNIVERSITI TEKNOLOGI PETRONAS
publishDate 2012
url http://utpedia.utp.edu.my/6109/1/LAURA%20TIONG_11963_FINAL%20DISSERTATION.pdf
http://utpedia.utp.edu.my/6109/
_version_ 1739831310513340416
score 13.211869

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