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		<title>Markert et al 2007a - Revision history</title>
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		<updated>2026-04-23T15:05:34Z</updated>
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	<entry>
		<id>https://www.scipedia.com/wd/index.php?title=Markert_et_al_2007a&amp;diff=203599&amp;oldid=prev</id>
		<title>Scipediacontent: Scipediacontent moved page Draft Content 268148714 to Markert et al 2007a</title>
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				<updated>2021-02-02T07:45:27Z</updated>
		
		<summary type="html">&lt;p&gt;Scipediacontent moved page &lt;a href=&quot;/public/Draft_Content_268148714&quot; class=&quot;mw-redirect&quot; title=&quot;Draft Content 268148714&quot;&gt;Draft Content 268148714&lt;/a&gt; to &lt;a href=&quot;/public/Markert_et_al_2007a&quot; title=&quot;Markert et al 2007a&quot;&gt;Markert et al 2007a&lt;/a&gt;&lt;/p&gt;
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				&lt;td colspan='1' style=&quot;background-color: white; color:black; text-align: center;&quot;&gt;← Older revision&lt;/td&gt;
				&lt;td colspan='1' style=&quot;background-color: white; color:black; text-align: center;&quot;&gt;Revision as of 07:45, 2 February 2021&lt;/td&gt;
				&lt;/tr&gt;&lt;tr&gt;&lt;td colspan='2' style='text-align: center;' lang='en'&gt;&lt;div class=&quot;mw-diff-empty&quot;&gt;(No difference)&lt;/div&gt;
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		<author><name>Scipediacontent</name></author>	</entry>

	<entry>
		<id>https://www.scipedia.com/wd/index.php?title=Markert_et_al_2007a&amp;diff=203598&amp;oldid=prev</id>
		<title>Scipediacontent: Created page with &quot; == Abstract ==     This paper is a result of international effort aimed at the construction of a device for quick closing of pipelines in the case of explosion propagation an...&quot;</title>
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				<updated>2021-02-02T07:45:24Z</updated>
		
		<summary type="html">&lt;p&gt;Created page with &amp;quot; == Abstract ==     This paper is a result of international effort aimed at the construction of a device for quick closing of pipelines in the case of explosion propagation an...&amp;quot;&lt;/p&gt;
&lt;p&gt;&lt;b&gt;New page&lt;/b&gt;&lt;/p&gt;&lt;div&gt;&lt;br /&gt;
== Abstract ==&lt;br /&gt;
&lt;br /&gt;
   This paper is a result of international effort aimed at the construction of a device for quick closing of pipelines in the case of explosion propagation and/or chemical leakage. Such a problem exists in industries where flammable substances are transported by pipelines. The basic solution principle was the idea to use airbags similar to those utilized in cars.  Two pipeline applications were taken into consideration: a low-pressure module able to suppress explosion propagation and a high-pressure module to stop leakages from, e.g. natural gas pipeline capable to be used for duct diameters up to 0.6 m, pressures up to 5 MPa and reaction times of 50 ms. It was necessary to construct a new airbag, capable of withstanding up to 10 bar pressure. The choice of material was critical to ensure sufficient strength and chemical resistance while retaining impermeability.  CFD modeling of the bag deployment into a pipe flow and analysis of the bag shapes was also completed. Two gas generators were constructed and tested with novel propellant materials.  Different airbag models were tested to evaluate their effectiveness. Risk analysis approach was applied to evaluate the safety and economic benefits of the new technology in different fields of application.&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
== Original document ==&lt;br /&gt;
&lt;br /&gt;
The different versions of the original document can be found in:&lt;br /&gt;
&lt;br /&gt;
* [http://publica.fraunhofer.de/documents/N-67752.html http://publica.fraunhofer.de/documents/N-67752.html]&lt;br /&gt;
&lt;br /&gt;
* [https://api.elsevier.com/content/article/PII:S0950423007000563?httpAccept=text/xml https://api.elsevier.com/content/article/PII:S0950423007000563?httpAccept=text/xml],&lt;br /&gt;
: [https://api.elsevier.com/content/article/PII:S0950423007000563?httpAccept=text/plain https://api.elsevier.com/content/article/PII:S0950423007000563?httpAccept=text/plain],&lt;br /&gt;
: [http://dx.doi.org/10.1016/j.jlp.2007.04.030 http://dx.doi.org/10.1016/j.jlp.2007.04.030] under the license https://www.elsevier.com/tdm/userlicense/1.0/&lt;br /&gt;
&lt;br /&gt;
* [https://www.sciencedirect.com/science/article/abs/pii/S0950423007000563 https://www.sciencedirect.com/science/article/abs/pii/S0950423007000563],&lt;br /&gt;
: [https://academic.microsoft.com/#/detail/2010712053 https://academic.microsoft.com/#/detail/2010712053]&lt;/div&gt;</summary>
		<author><name>Scipediacontent</name></author>	</entry>

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