{"id":{"repo_id":"mit","oai_identifier":"oai:dspace.mit.edu:1721.1/8914"},"canonical_url":"https://search.dev.ndltd.org/etd/mit/oai:dspace.mit.edu:1721.1/8914","repository":{"repo_id":"mit","name":"MIT","base_url":"https://dspace.mit.edu/oai/request"},"display":{"title":"The effect of manufacturing tolerances and header design on heat exchanger effectiveness","abstract":"This study seeks to analyze the effect of manufacturing defects and inlet header design on the effectiveness of heat exchangers. A commercial computational fluid dynamics code, FLUENT 5.4, was used to numerically simulate individual and pairs of passages as well as sections of an inlet header and heat-exchanger core. The one- and two passage models show that the four representative manufacturing defects do not have a large impact on overall effectiveness, even when the defects are quite large relative to the passage dimensions. The core and header sections showed that the basic header contour and the angle of the incoming flow as well as the pressure drop through the core have a significant impact on the flow distribution. Small variations in the header dimensions and the core/header aspect ratio have little effect on the effectiveness. Decreasing the angle the incoming flow turns through and increasing the pressure drop through the core both create a more even flow distribution through the heat exchanger, hence increasing its effectiveness.","abstract_html":"This study seeks to analyze the effect of manufacturing defects and inlet header design on the effectiveness of heat exchangers. A commercial computational fluid dynamics code, FLUENT 5.4, was used to numerically simulate individual and pairs of passages as well as sections of an inlet header and heat-exchanger core. The one- and two passage models show that the four representative manufacturing defects do not have a large impact on overall effectiveness, even when the defects are quite large relative to the passage dimensions. The core and header sections showed that the basic header contour and the angle of the incoming flow as well as the pressure drop through the core have a significant impact on the flow distribution. Small variations in the header dimensions and the core/header aspect ratio have little effect on the effectiveness. Decreasing the angle the incoming flow turns through and increasing the pressure drop through the core both create a more even flow distribution through the heat exchanger, hence increasing its effectiveness.","abstract_has_math":false,"creators":["Booten, Charles (Charles William), 1978-"],"institution":"Massachusetts Institute of Technology","degree_name":null,"degree_level":null,"degree_discipline":null,"degree_department":"Massachusetts Institute of Technology. Dept. of Mechanical Engineering.","school":null,"contributors":[],"advisors":["David Gordon Wilson."],"committee_chairs":[],"committee_members":[],"year":2001,"date_issued":"2001","date_published":"2001","updated_at":"2026-07-22T22:21:38Z","subjects":["Mechanical Engineering."],"languages":["eng"],"rights":["M.I.T. theses are protected by copyright. They may be viewed from this source for any purpose, but reproduction or distribution in any format is prohibited without written permission. See provided URL for inquiries about permission."],"rights_urls":["http://dspace.mit.edu/handle/1721.1/7582"],"identifier_entries":[]},"links":{"outbound_url":"http://hdl.handle.net/1721.1/8914","outbound_label":"Handle","outbound_source":"dc:identifier.uri"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:contributor.advisor","label":"Advisor","values":["David Gordon Wilson."]},{"key":"dc:contributor.department","label":"Department","values":["Massachusetts Institute of Technology. Dept. of Mechanical Engineering."]},{"key":"dc:contributor.other","label":"Dc Contributor Other","values":["Massachusetts Institute of Technology. Dept. of Mechanical Engineering."]},{"key":"dc:creator","label":"Author","values":["Booten, Charles (Charles William), 1978-"]}]},{"id":"academic_context","label":"Academic Context","entries":[{"key":"dc:date.accessioned","label":"Dc Date Accessioned","values":["2005-08-23T16:19:49Z"]},{"key":"dc:date.available","label":"Dc Date Available","values":["2005-08-23T16:19:49Z"]},{"key":"dc:date.issued","label":"Date","values":["2001"]},{"key":"dc:publisher","label":"Institution","values":["Massachusetts Institute of Technology"]},{"key":"dc:type","label":"Dc Type","values":["Thesis"]}]},{"id":"subjects_keywords","label":"Subjects and Keywords","entries":[{"key":"dc:subject","label":"Dc Subject","values":["Mechanical Engineering."]}]},{"id":"language_rights","label":"Language and Rights","entries":[{"key":"dc:language.iso","label":"Language (ISO)","values":["eng"]},{"key":"dc:rights","label":"Dc Rights","values":["M.I.T. theses are protected by copyright. They may be viewed from this source for any purpose, but reproduction or distribution in any format is prohibited without written permission. See provided URL for inquiries about permission."]},{"key":"dc:rights.uri","label":"Rights URI","values":["http://dspace.mit.edu/handle/1721.1/7582"]}]},{"id":"identifiers","label":"Identifiers","entries":[{"key":"dc:identifier.uri","label":"Identifier URI","values":["http://hdl.handle.net/1721.1/8914"]}]},{"id":"additional","label":"Additional Metadata","entries":[{"key":"dc:description","label":"Description","values":["Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 2001.","Includes bibliographical references (p. 125-129)."]},{"key":"dc:description.abstract","label":"Abstract","values":["This study seeks to analyze the effect of manufacturing defects and inlet header design on the effectiveness of heat exchangers. A commercial computational fluid dynamics code, FLUENT 5.4, was used to numerically simulate individual and pairs of passages as well as sections of an inlet header and heat-exchanger core. The one- and two passage models show that the four representative manufacturing defects do not have a large impact on overall effectiveness, even when the defects are quite large relative to the passage dimensions. The core and header sections showed that the basic header contour and the angle of the incoming flow as well as the pressure drop through the core have a significant impact on the flow distribution. Small variations in the header dimensions and the core/header aspect ratio have little effect on the effectiveness. Decreasing the angle the incoming flow turns through and increasing the pressure drop through the core both create a more even flow distribution through the heat exchanger, hence increasing its effectiveness."]},{"key":"dc:description.degree","label":"Dc Description Degree","values":["S.M."]},{"key":"dc:format.mimetype","label":"Dc Format Mimetype","values":["application/pdf"]},{"key":"dc:title","label":"Title","values":["The effect of manufacturing tolerances and header design on heat exchanger effectiveness"]}]}],"canonical_facts":{"dc:contributor.advisor":["David Gordon Wilson."],"dc:contributor.department":["Massachusetts Institute of Technology. Dept. of Mechanical Engineering."],"dc:contributor.other":["Massachusetts Institute of Technology. Dept. of Mechanical Engineering."],"dc:creator":["Booten, Charles (Charles William), 1978-"],"dc:date.accessioned":["2005-08-23T16:19:49Z"],"dc:date.available":["2005-08-23T16:19:49Z"],"dc:date.issued":["2001"],"dc:description":["Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 2001.","Includes bibliographical references (p. 125-129)."],"dc:description.abstract":["This study seeks to analyze the effect of manufacturing defects and inlet header design on the effectiveness of heat exchangers. A commercial computational fluid dynamics code, FLUENT 5.4, was used to numerically simulate individual and pairs of passages as well as sections of an inlet header and heat-exchanger core. The one- and two passage models show that the four representative manufacturing defects do not have a large impact on overall effectiveness, even when the defects are quite large relative to the passage dimensions. The core and header sections showed that the basic header contour and the angle of the incoming flow as well as the pressure drop through the core have a significant impact on the flow distribution. Small variations in the header dimensions and the core/header aspect ratio have little effect on the effectiveness. Decreasing the angle the incoming flow turns through and increasing the pressure drop through the core both create a more even flow distribution through the heat exchanger, hence increasing its effectiveness."],"dc:description.degree":["S.M."],"dc:format.mimetype":["application/pdf"],"dc:identifier.uri":["http://hdl.handle.net/1721.1/8914"],"dc:language.iso":["eng"],"dc:publisher":["Massachusetts Institute of Technology"],"dc:rights":["M.I.T. theses are protected by copyright. They may be viewed from this source for any purpose, but reproduction or distribution in any format is prohibited without written permission. See provided URL for inquiries about permission."],"dc:rights.uri":["http://dspace.mit.edu/handle/1721.1/7582"],"dc:subject":["Mechanical Engineering."],"dc:title":["The effect of manufacturing tolerances and header design on heat exchanger effectiveness"],"dc:type":["Thesis"]},"updated_at":"2026-07-22T22:21:38Z"}