dc.contributor.author	Lee, Juneseok	en
dc.contributor.committeechair	Loganathan, G. V.	en
dc.contributor.committeemember	Younos, Tamim	en
dc.contributor.committeemember	Lohani, Vinod K.	en
dc.contributor.department	Civil Engineering	en
dc.date.accessioned	2014-03-14T20:50:43Z	en
dc.date.adate	2004-12-29	en
dc.date.available	2014-03-14T20:50:43Z	en
dc.date.issued	2004-12-10	en
dc.date.rdate	2004-12-29	en
dc.date.sdate	2004-12-23	en
dc.description.abstract	Pinhole corrosion leak in home plumbing has emerged as a significant issue. In the major water distribution system managed by municipalities and water utilities the costs are distributed among all subscribers. The home plumbing repair/replacement cost and possible water damage cost must be addressed by the home owner. There are also issues of the value of home, insurance rates, health consequences, and taste and odor problems. These issues have become major concerns to home owners. Cradle to grave life cycle assessment is becoming an integral part of industrial manufacturing. In this thesis comprehensive details pertaining to life cycle assessment are presented. Copper tubing for plumbing installations is mainly obtained from recycled copper. Various stages of copper plumbing pipe manufacturing are explained. A comprehensive synthesis of various corrosion mechanisms is presented. Particular reference is given to copper plumbing pipe corrosion. A decision support tool for replacing copper plumbing pipes is presented. The deterioration process is grouped into early, normal and late stages. Because available data reflects late stage process, an optimization, neural network and curve fitting models are developed to infer early and normal stage behavior of the plumbing system. Utilizing the inferred leak rates a non-homogeneous poisson process model is developed to generate leak arrival times. An economically sustainable replacement criterion is adopted to determine optimal replacement time.	en
dc.description.degree	Master of Science	en
dc.identifier.other	etd-12232004-171016	en
dc.identifier.sourceurl	http://scholar.lib.vt.edu/theses/available/etd-12232004-171016/	en
dc.identifier.uri	http://hdl.handle.net/10919/36421	en
dc.publisher	Virginia Tech	en
dc.relation.haspart	Chapter4.pdf	en
dc.relation.haspart	Chapter3.pdf	en
dc.relation.haspart	Chapter2.pdf	en
dc.relation.haspart	Chapter1.pdf	en
dc.relation.haspart	Appendix_C.pdf	en
dc.relation.haspart	Chapter7.pdf	en
dc.relation.haspart	Chapter6.pdf	en
dc.relation.haspart	Chapter5.pdf	en
dc.relation.haspart	Appendix_B.pdf	en
dc.relation.haspart	Appendix_A.pdf	en
dc.relation.haspart	Abstract.pdf	en
dc.relation.haspart	Glossary.pdf	en
dc.relation.haspart	VITA.pdf	en
dc.rights	In Copyright	en
dc.rights.uri	http://rightsstatements.org/vocab/InC/1.0/	en
dc.subject	optimal replacement	en
dc.subject	decision support tool	en
dc.subject	neural network	en
dc.subject	Copper corrosion	en
dc.subject	Life cycle assessment	en
dc.subject	Home plumbing	en
dc.subject	Simulation	en
dc.subject	geographic information system	en
dc.subject	non-homogeneous poisson process	en
dc.title	Decision Support Tool for Optimal Replacement of Plumbing Systems	en
dc.type	Thesis	en
thesis.degree.discipline	Civil Engineering	en
thesis.degree.grantor	Virginia Polytechnic Institute and State University	en
thesis.degree.level	masters	en
thesis.degree.name	Master of Science	en

Decision Support Tool for Optimal Replacement of Plumbing Systems

Files

Original bundle

Collections