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Thermodynamic Model for Relating Volumetric to Mass Flow Rate for Natural Gas

This project presents a method of measuring mass flow rate of natural gas using a reliable Equation of State (EOS) to eliminate the use of expensive coriolis meter. Natural gas is an alternative vehicle fuel that has long been proposed as a way to provide significant air quality benefits over pet...

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Main Author: Sahari, Siti Aishah
Format: Final Year Project
Language:English
Published: Universiti Teknologi Petronas 2005
Subjects:
TP Chemical technology
Online Access:http://utpedia.utp.edu.my/8127/1/2005%20-%20Thermodynamic%20Model%20for%20Relating%20Volumetric%20to%20Mass%20Flow%20Rate%20for%20Natural%20Gas.pdf
http://utpedia.utp.edu.my/8127/
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spelling my-utp-utpedia.81272017-01-25T09:46:43Z http://utpedia.utp.edu.my/8127/ Thermodynamic Model for Relating Volumetric to Mass Flow Rate for Natural Gas Sahari, Siti Aishah TP Chemical technology This project presents a method of measuring mass flow rate of natural gas using a reliable Equation of State (EOS) to eliminate the use of expensive coriolis meter. Natural gas is an alternative vehicle fuel that has long been proposed as a way to provide significant air quality benefits over petroleum fuels. Unlike gasoline or diesel gas that can be measured in volumetric flow rate, natural gas needs to be measured in mass flow rate. Only coriolis meter is available in the market that can give the reading in mass per unit time while the other flow meters give the volumetric reading. However, the high cost of coriolis meter has led to the research of finding another alternative to measure mass flow rate of natural gas. The method considered in the study is to have the volumetric flow rate measured, prior to converting it to mass flow rate using a suitableEquationof State (EOS). In orderto complete this project, there are four critical stages involved. The first stage is to conduct several experiments using a Test Rig Dispenser to obtain Pressure-Volume- Temperature (PVT) relation of natural gas. These data are then being used for the purpose of performing computation of errors for the tested EOSs. Errors for all of the EOSs are then compared to determine the EOS that gives the smallest error percentage. After that, another stage to validate the obtained EOS is done. In this stage, the EOS is used along with PVT data to compute mass flow rate of the natural gas dispensed. This mass flow rate from the computation is then being compared to the measured value of coriolis meter. From the results of dynamic experiment, it is observed that ideal gas law gives smallest error percentage followed by SRK, Lee-Kesler, Peng-Robinson, Van der Waals and Virial equation of state. However, from the static experiment, SRK gives the smallest error followed by Lee-Kesler Plocker, Peng-Robinson, Van der Waals, Virial, and ideal gas equation. The static experiment gives more accurate result since all thermodynamic properties are taken at their steady state condition. Universiti Teknologi Petronas 2005-01 Final Year Project NonPeerReviewed application/pdf en http://utpedia.utp.edu.my/8127/1/2005%20-%20Thermodynamic%20Model%20for%20Relating%20Volumetric%20to%20Mass%20Flow%20Rate%20for%20Natural%20Gas.pdf Sahari, Siti Aishah (2005) Thermodynamic Model for Relating Volumetric to Mass Flow Rate for Natural Gas. 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
Sahari, Siti Aishah
Thermodynamic Model for Relating Volumetric to Mass Flow Rate for Natural Gas
description This project presents a method of measuring mass flow rate of natural gas using a reliable Equation of State (EOS) to eliminate the use of expensive coriolis meter. Natural gas is an alternative vehicle fuel that has long been proposed as a way to provide significant air quality benefits over petroleum fuels. Unlike gasoline or diesel gas that can be measured in volumetric flow rate, natural gas needs to be measured in mass flow rate. Only coriolis meter is available in the market that can give the reading in mass per unit time while the other flow meters give the volumetric reading. However, the high cost of coriolis meter has led to the research of finding another alternative to measure mass flow rate of natural gas. The method considered in the study is to have the volumetric flow rate measured, prior to converting it to mass flow rate using a suitableEquationof State (EOS). In orderto complete this project, there are four critical stages involved. The first stage is to conduct several experiments using a Test Rig Dispenser to obtain Pressure-Volume- Temperature (PVT) relation of natural gas. These data are then being used for the purpose of performing computation of errors for the tested EOSs. Errors for all of the EOSs are then compared to determine the EOS that gives the smallest error percentage. After that, another stage to validate the obtained EOS is done. In this stage, the EOS is used along with PVT data to compute mass flow rate of the natural gas dispensed. This mass flow rate from the computation is then being compared to the measured value of coriolis meter. From the results of dynamic experiment, it is observed that ideal gas law gives smallest error percentage followed by SRK, Lee-Kesler, Peng-Robinson, Van der Waals and Virial equation of state. However, from the static experiment, SRK gives the smallest error followed by Lee-Kesler Plocker, Peng-Robinson, Van der Waals, Virial, and ideal gas equation. The static experiment gives more accurate result since all thermodynamic properties are taken at their steady state condition.
format Final Year Project
author Sahari, Siti Aishah
author_facet Sahari, Siti Aishah
author_sort Sahari, Siti Aishah
title Thermodynamic Model for Relating Volumetric to Mass Flow Rate for Natural Gas
title_short Thermodynamic Model for Relating Volumetric to Mass Flow Rate for Natural Gas
title_full Thermodynamic Model for Relating Volumetric to Mass Flow Rate for Natural Gas
title_fullStr Thermodynamic Model for Relating Volumetric to Mass Flow Rate for Natural Gas
title_full_unstemmed Thermodynamic Model for Relating Volumetric to Mass Flow Rate for Natural Gas
title_sort thermodynamic model for relating volumetric to mass flow rate for natural gas
publisher Universiti Teknologi Petronas
publishDate 2005
url http://utpedia.utp.edu.my/8127/1/2005%20-%20Thermodynamic%20Model%20for%20Relating%20Volumetric%20to%20Mass%20Flow%20Rate%20for%20Natural%20Gas.pdf
http://utpedia.utp.edu.my/8127/
_version_ 1739831539978469376
score 13.211869

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