Modification of BKW EOS introducing density-dependent molecular covolumes concept

One of the most important tasks of thermochemical codes for the calculation of detonation properties is the accurate description of the state of gaseous products within a rather wide range of pressures and temperatures – from several hundreds of kbar and several thousands of K to atmospheric pressur...

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Main Authors: Suceska, Muhamed, Ang, How Ghee, Chan, Serene Hay Yee
Other Authors: Energy Research Institute @ NTU (ERI@N)
Format: Article
Language:English
Published: 2013
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Online Access:https://hdl.handle.net/10356/96505
http://hdl.handle.net/10220/11786
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Institution: Nanyang Technological University
Language: English
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spelling sg-ntu-dr.10356-965052021-01-10T11:16:08Z Modification of BKW EOS introducing density-dependent molecular covolumes concept Suceska, Muhamed Ang, How Ghee Chan, Serene Hay Yee Energy Research Institute @ NTU (ERI@N) DRNTU::Engineering::Materials One of the most important tasks of thermochemical codes for the calculation of detonation properties is the accurate description of the state of gaseous products within a rather wide range of pressures and temperatures – from several hundreds of kbar and several thousands of K to atmospheric pressure and temperature. Due to its simplicity and convenience, the Becker-Kistiakowski-Wilson (BKW) equation of state is used in many practical applications in the explosives field, despite its lack of rigorous theoretical background. The BKW EOS gives good agreement between calculated and experimentally obtained detonation parameters for many standard high explosives having densities in the range 1.2 – 2 g/cm3. However, it fails to predict accurately detonation properties at lower densities. To overcome this problem, we introduced the concept of density dependent molecular covolumes in the BKW EOS instead of invariant. The applicability of the approach is verified by comparing experimental and calculated values of detonation parameters for a series of explosives having different formulations and densities. It was found that by applying this approach the accuracy of the calculations for lower densities can be significantly improved. 2013-07-17T07:54:02Z 2019-12-06T19:31:33Z 2013-07-17T07:54:02Z 2019-12-06T19:31:33Z 2011 2011 Journal Article Suceska, M., Ang, H. G., & Chan, S. H. Y. (2011). Modification of BKW EOS introducing density-dependent molecular covolumes concept. Materials science forum, 673, 47-52. 1662-9752 https://hdl.handle.net/10356/96505 http://hdl.handle.net/10220/11786 10.4028/www.scientific.net/MSF.673.47 172148 en Materials science forum © 2011 Trans Tech Publications, Switzerland.
institution Nanyang Technological University
building NTU Library
continent Asia
country Singapore
Singapore
content_provider NTU Library
collection DR-NTU
language English
topic DRNTU::Engineering::Materials
spellingShingle DRNTU::Engineering::Materials
Suceska, Muhamed
Ang, How Ghee
Chan, Serene Hay Yee
Modification of BKW EOS introducing density-dependent molecular covolumes concept
description One of the most important tasks of thermochemical codes for the calculation of detonation properties is the accurate description of the state of gaseous products within a rather wide range of pressures and temperatures – from several hundreds of kbar and several thousands of K to atmospheric pressure and temperature. Due to its simplicity and convenience, the Becker-Kistiakowski-Wilson (BKW) equation of state is used in many practical applications in the explosives field, despite its lack of rigorous theoretical background. The BKW EOS gives good agreement between calculated and experimentally obtained detonation parameters for many standard high explosives having densities in the range 1.2 – 2 g/cm3. However, it fails to predict accurately detonation properties at lower densities. To overcome this problem, we introduced the concept of density dependent molecular covolumes in the BKW EOS instead of invariant. The applicability of the approach is verified by comparing experimental and calculated values of detonation parameters for a series of explosives having different formulations and densities. It was found that by applying this approach the accuracy of the calculations for lower densities can be significantly improved.
author2 Energy Research Institute @ NTU (ERI@N)
author_facet Energy Research Institute @ NTU (ERI@N)
Suceska, Muhamed
Ang, How Ghee
Chan, Serene Hay Yee
format Article
author Suceska, Muhamed
Ang, How Ghee
Chan, Serene Hay Yee
author_sort Suceska, Muhamed
title Modification of BKW EOS introducing density-dependent molecular covolumes concept
title_short Modification of BKW EOS introducing density-dependent molecular covolumes concept
title_full Modification of BKW EOS introducing density-dependent molecular covolumes concept
title_fullStr Modification of BKW EOS introducing density-dependent molecular covolumes concept
title_full_unstemmed Modification of BKW EOS introducing density-dependent molecular covolumes concept
title_sort modification of bkw eos introducing density-dependent molecular covolumes concept
publishDate 2013
url https://hdl.handle.net/10356/96505
http://hdl.handle.net/10220/11786
_version_ 1690658455837212672