Bundle-Flowline Thermal Analysis

Zabaras, GJ; Zhang, JJ

dc.contributor.author	Zabaras, GJ	en
dc.contributor.author	Zhang, JJ	en
dc.date.accessioned	2014-03-01T01:47:08Z
dc.date.available	2014-03-01T01:47:08Z
dc.date.issued	1998	en
dc.identifier.issn	1086055X	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/25155
dc.relation.uri	http://www.scopus.com/inward/record.url?eid=2-s2.0-0032312856&partnerID=40&md5=37bf67b5af4525445666b2452e86e1e3	en
dc.subject.other	Bundle flowlines	en
dc.subject.other	Approximation theory	en
dc.subject.other	Computational methods	en
dc.subject.other	Finite element method	en
dc.subject.other	Heat transfer coefficients	en
dc.subject.other	Partial differential equations	en
dc.subject.other	Thermoanalysis	en
dc.subject.other	Petroleum pipelines	en
dc.title	Bundle-Flowline Thermal Analysis	en
heal.type	journalArticle	en
heal.publicationDate	1998	en
heal.abstract	The bundle flowline involves packaging multiple flowlines, control, and injection lines within a single carrier pipe. A bundle is claimed to provide an effective means of insulating flowlines by use of low-cost materials; however, no rigorous heat transfer analysis of bundled flowline systems has been offered by the literature or the vendors. For this reason, the thermal performance of bundle-insulated flowlines has been studied with a general-purpose, finite-element, partial-differential equation solver. Steady-state and transient cooldown performance were analyzed for six different bundle configurations. Overall heat transfer coefficients for individual flowlines within a bundle have been determined in addition to cooldown performance for different insulation levels and pipe sizes. These results have been compared with results obtained for the simple bundle geometry of a pipe-in-pipe system, and found comparable. To expedite the calculation of overall heat transfer coefficients for bundle flowlines, simplified heat transfer calculations were developed as an approximation to the finite-element solutions. These approximations are on the average within 5% of the finite-element solution.	en
heal.journalName	SPE Journal	en
dc.identifier.volume	3	en
dc.identifier.issue	4	en
dc.identifier.spage	363	en
dc.identifier.epage	372	en