Estimation of safety distances in the vicinity of fuel gas pipelines

Sklavounos, S; Rigas, F

dc.contributor.author	Sklavounos, S	en
dc.contributor.author	Rigas, F	en
dc.date.accessioned	2014-03-01T01:24:20Z
dc.date.available	2014-03-01T01:24:20Z
dc.date.issued	2006	en
dc.identifier.issn	0950-4230	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/17219
dc.subject	Consequence modeling	en
dc.subject	Event Tree Analysis	en
dc.subject	Gas dispersion	en
dc.subject	Jet fire	en
dc.subject	Pipeline safety	en
dc.subject	Safety distance	en
dc.subject.classification	Engineering, Chemical	en
dc.subject.other	Computer software	en
dc.subject.other	Dispersions	en
dc.subject.other	Dissolution	en
dc.subject.other	Gas fuels	en
dc.subject.other	Gas pipelines	en
dc.subject.other	Heat radiation	en
dc.subject.other	Liquefied petroleum gas	en
dc.subject.other	Mixtures	en
dc.subject.other	Natural gas	en
dc.subject.other	Parameter estimation	en
dc.subject.other	Consequence modeling	en
dc.subject.other	Gas dispersion	en
dc.subject.other	Jet fires	en
dc.subject.other	Pipeline safety	en
dc.subject.other	Safety distances	en
dc.subject.other	Safety tree analysis	en
dc.subject.other	Accident prevention	en
dc.subject.other	gas pipeline	en
dc.subject.other	modeling	en
dc.subject.other	pipeline	en
dc.subject.other	process industry	en
dc.subject.other	safety	en
dc.title	Estimation of safety distances in the vicinity of fuel gas pipelines	en
heal.type	journalArticle	en
heal.identifier.primary	10.1016/j.jlp.2005.05.002	en
heal.identifier.secondary	http://dx.doi.org/10.1016/j.jlp.2005.05.002	en
heal.language	English	en
heal.publicationDate	2006	en
heal.abstract	In this paper, safety distances around pipelines transmitting liquefied petroleum gas and pressurized natural gas are determined considering the possible outcomes of an accidental event associated with fuel gas release from pressurized transmission systems. Possible outcomes of an accidental fuel gas release were determined by performing the Event Tree Analysis approach. Safety distances were computed for two pipeline transmission systems of pressurized natural gas and liquefied petroleum gas existing in Greece using real data given by Greek Refineries and the Greek Public Gas Enterprise. The software packages CHETAH and BREEZE were used for thermochemical mixture properties estimation and quantitative consequence assessment, respectively. Safety distance determination was performed considering jet fire and gas dispersion to the lower flammable limit as the worst-case scenarios corresponding to immediate and delayed cloud ignition. The results showed that the jet fire scenario should be considered as the limiter for safety distances determination in the vicinity of natural and petroleum gas pipelines. Based on this conclusion, the obtained results were further treated to yield functional diagrams for prompt safety distance estimation. In addition, qualitative conclusions were made regarding the effect of atmospheric conditions on possible events. Thus, wind velocity was found to dominate during a jet fire event suppressing the thermal radiation effect, whereas gas dispersion was found to be affected mainly by solar radiation that favors the faster dissolution of fuel gas below the lower flammable limit. (c) 2005 Elsevier Ltd. All rights reserved.	en
heal.publisher	ELSEVIER SCI LTD	en
heal.journalName	Journal of Loss Prevention in the Process Industries	en
dc.identifier.doi	10.1016/j.jlp.2005.05.002	en
dc.identifier.isi	ISI:000232969800004	en
dc.identifier.volume	19	en
dc.identifier.issue	1	en
dc.identifier.spage	24	en
dc.identifier.epage	31	en