Thermal analysis of adsorptive natural gas storages during dynamic charge phase at room temperature

The thermal behavior of an adsorptive natural gas (ANG) vessel pressurized continuously with light hydrocarbon gases and their mixture at 27 °C was analyzed using two different activated carbons. Activated carbon AC-L showed better isothermal storage capacity than AC-D due to its sufficient porous...

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Main Authors: Ridha, Firas Noori, Yunus, Rosli M., Rashid, Mohd., Ismail, Ahmad Fauzi
Format: Article
Published: Elsevier Inc. 2007
Subjects:
Online Access:http://eprints.utm.my/7175/
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author Ridha, Firas Noori
Yunus, Rosli M.
Rashid, Mohd.
Ismail, Ahmad Fauzi
author_facet Ridha, Firas Noori
Yunus, Rosli M.
Rashid, Mohd.
Ismail, Ahmad Fauzi
author_sort Ridha, Firas Noori
building UTeM Institutional Repository
collection Online Access
description The thermal behavior of an adsorptive natural gas (ANG) vessel pressurized continuously with light hydrocarbon gases and their mixture at 27 °C was analyzed using two different activated carbons. Activated carbon AC-L showed better isothermal storage capacity than AC-D due to its sufficient porous structure. However, higher adsorption capacity claimed more extreme thermal fluctuation represented by a temperature rise of 99.2 °C at the center region of the bed charged continuously with methane at 1 L min−1 up to pressure of 4 MPa, corresponding to 82.5 °C in AC-D bed. Higher charge rate of 5 L min−1 claimed severer thermal fluctuation of 116 °C in AC-L/methane system calling for a serious reduction of 26.9% in the dynamic storage capacity with respect to the isothermal storage capacity. This reduction brought the storage system to a working pressure of about 2.5 MPa rather than the desired working pressure of 4 MPa (about 40% reduction in storage pressure). The severest temperature rise was at the center region caused by bed poor thermal conductivity leading to limited heat transfer. High ethane and propane portions in natural gas may contribute to the thermal fluctuation of the storage system as their heats of adsorption are higher than that for methane
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institution Universiti Teknologi Malaysia
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publishDate 2007
publisher Elsevier Inc.
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spelling utm-71752017-10-22T08:23:29Z http://eprints.utm.my/7175/ Thermal analysis of adsorptive natural gas storages during dynamic charge phase at room temperature Ridha, Firas Noori Yunus, Rosli M. Rashid, Mohd. Ismail, Ahmad Fauzi TP Chemical technology The thermal behavior of an adsorptive natural gas (ANG) vessel pressurized continuously with light hydrocarbon gases and their mixture at 27 °C was analyzed using two different activated carbons. Activated carbon AC-L showed better isothermal storage capacity than AC-D due to its sufficient porous structure. However, higher adsorption capacity claimed more extreme thermal fluctuation represented by a temperature rise of 99.2 °C at the center region of the bed charged continuously with methane at 1 L min−1 up to pressure of 4 MPa, corresponding to 82.5 °C in AC-D bed. Higher charge rate of 5 L min−1 claimed severer thermal fluctuation of 116 °C in AC-L/methane system calling for a serious reduction of 26.9% in the dynamic storage capacity with respect to the isothermal storage capacity. This reduction brought the storage system to a working pressure of about 2.5 MPa rather than the desired working pressure of 4 MPa (about 40% reduction in storage pressure). The severest temperature rise was at the center region caused by bed poor thermal conductivity leading to limited heat transfer. High ethane and propane portions in natural gas may contribute to the thermal fluctuation of the storage system as their heats of adsorption are higher than that for methane Elsevier Inc. 2007 Article PeerReviewed Ridha, Firas Noori and Yunus, Rosli M. and Rashid, Mohd. and Ismail, Ahmad Fauzi (2007) Thermal analysis of adsorptive natural gas storages during dynamic charge phase at room temperature. Experimental Thermal and Fluid Science, 32 (1). pp. 14-22. ISSN 0894-1777 http://dx.doi.org/10.1016/j.expthermflusci.2007.01.002 10.1016/j.expthermflusci.2007.01.002
spellingShingle TP Chemical technology
Ridha, Firas Noori
Yunus, Rosli M.
Rashid, Mohd.
Ismail, Ahmad Fauzi
Thermal analysis of adsorptive natural gas storages during dynamic charge phase at room temperature
title Thermal analysis of adsorptive natural gas storages during dynamic charge phase at room temperature
title_full Thermal analysis of adsorptive natural gas storages during dynamic charge phase at room temperature
title_fullStr Thermal analysis of adsorptive natural gas storages during dynamic charge phase at room temperature
title_full_unstemmed Thermal analysis of adsorptive natural gas storages during dynamic charge phase at room temperature
title_short Thermal analysis of adsorptive natural gas storages during dynamic charge phase at room temperature
title_sort thermal analysis of adsorptive natural gas storages during dynamic charge phase at room temperature
topic TP Chemical technology
url http://eprints.utm.my/7175/
http://eprints.utm.my/7175/
http://eprints.utm.my/7175/