{"id":{"repo_id":"vt","oai_identifier":"oai:vtechworks.lib.vt.edu:10919/41259"},"canonical_url":"https://search.dev.ndltd.org/etd/vt/oai:vtechworks.lib.vt.edu:10919/41259","repository":{"repo_id":"vt","name":"Virginia Tech","base_url":"https://vtechworks.lib.vt.edu/oai/request"},"display":{"title":"The determination of a water film coefficient and a condensing steam film coefficient for a single tube heat exchanger","abstract":"The object of this thesis was to determine water film coefficients and condensing steam film coefficients for a single tube heat exchanger. A shell and tube apparatus was constructed and these coefficients were determined by Wilsons graphical method. Test runs were made at various pressures and water velocities. It was determined that for flow through a horizontal tube the water film coefficient closely approximates 416 V<sub>w</sub>^0.8 Btu/hr-ft²-F, where V<sub>w</sub> equals water velocity in feet per second, and the Reynolds number lies between 17,000 and 100,000. It was also found that an average condensing steam film coefficient for filmwise condensation was 2000 Btu/hr-ft²-F. It was discovered that this coefficient is much higher if the condensing surface is highly polished.","abstract_html":"The object of this thesis was to determine water film coefficients and condensing steam film coefficients for a single tube heat exchanger. A shell and tube apparatus was constructed and these coefficients were determined by Wilsons graphical method. Test runs were made at various pressures and water velocities. It was determined that for flow through a horizontal tube the water film coefficient closely approximates 416 V&lt;sub&gt;w&lt;/sub&gt;^0.8 Btu/hr-ft²-F, where V&lt;sub&gt;w&lt;/sub&gt; equals water velocity in feet per second, and the Reynolds number lies between 17,000 and 100,000. It was also found that an average condensing steam film coefficient for filmwise condensation was 2000 Btu/hr-ft²-F. It was discovered that this coefficient is much higher if the condensing surface is highly polished.","abstract_has_math":false,"creators":["Moore, George Franklin"],"institution":"Virginia Tech","degree_name":"Master of Science","degree_level":"masters","degree_discipline":"Mechanical Engineering","degree_department":"Mechanical Engineering","school":null,"contributors":[],"advisors":[],"committee_chairs":[],"committee_members":[],"year":1951,"date_issued":"1951","date_published":"1951","updated_at":"2026-07-22T22:20:20Z","subjects":[],"languages":["en"],"rights":["In Copyright"],"rights_urls":["http://rightsstatements.org/vocab/InC/1.0/"],"identifier_entries":[{"key":"dc:identifier.other","label":"Dc Identifier Other","values":["etd-02232010-020153"],"render_values":[{"text":"etd-02232010-020153","href":null,"code":true}]}]},"links":{"outbound_url":"http://hdl.handle.net/10919/41259","outbound_label":"Handle","outbound_source":"dc:identifier.uri"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:contributor.department","label":"Department","values":["Mechanical Engineering"]},{"key":"dc:creator","label":"Author","values":["Moore, George Franklin"]}]},{"id":"academic_context","label":"Academic Context","entries":[{"key":"dc:date.accessioned","label":"Dc Date Accessioned","values":["2014-03-14T21:30:10Z"]},{"key":"dc:date.available","label":"Dc Date Available","values":["2014-03-14T21:30:10Z","2010-02-23"]},{"key":"dc:date.issued","label":"Date","values":["1951"]},{"key":"dc:publisher","label":"Institution","values":["Virginia Tech"]},{"key":"dc:type","label":"Dc Type","values":["Thesis"]},{"key":"dc:type.dcmitype","label":"Dc Type Dcmitype","values":["Text"]},{"key":"thesis:degree_discipline","label":"Discipline","values":["Mechanical Engineering"]},{"key":"thesis:degree_level","label":"Degree Level","values":["masters"]},{"key":"thesis:degree_name","label":"Degree Name","values":["Master of Science"]},{"key":"thesis:institution_name","label":"Thesis Institution Name","values":["Virginia Polytechnic Institute"]}]},{"id":"language_rights","label":"Language and Rights","entries":[{"key":"dc:language.iso","label":"Language (ISO)","values":["en"]},{"key":"dc:rights","label":"Dc Rights","values":["In Copyright"]},{"key":"dc:rights.uri","label":"Rights URI","values":["http://rightsstatements.org/vocab/InC/1.0/"]}]},{"id":"identifiers","label":"Identifiers","entries":[{"key":"dc:identifier.other","label":"Dc Identifier Other","values":["etd-02232010-020153"]},{"key":"dc:identifier.uri","label":"Identifier URI","values":["http://hdl.handle.net/10919/41259"]}]},{"id":"additional","label":"Additional Metadata","entries":[{"key":"dc:description.abstract","label":"Abstract","values":["The object of this thesis was to determine water film coefficients and condensing steam film coefficients for a single tube heat exchanger. A shell and tube apparatus was constructed and these coefficients were determined by Wilsons graphical method. Test runs were made at various pressures and water velocities. It was determined that for flow through a horizontal tube the water film coefficient closely approximates 416 V<sub>w</sub>^0.8 Btu/hr-ft²-F, where V<sub>w</sub> equals water velocity in feet per second, and the Reynolds number lies between 17,000 and 100,000. It was also found that an average condensing steam film coefficient for filmwise condensation was 2000 Btu/hr-ft²-F. 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A shell and tube apparatus was constructed and these coefficients were determined by Wilsons graphical method. Test runs were made at various pressures and water velocities. It was determined that for flow through a horizontal tube the water film coefficient closely approximates 416 V<sub>w</sub>^0.8 Btu/hr-ft²-F, where V<sub>w</sub> equals water velocity in feet per second, and the Reynolds number lies between 17,000 and 100,000. It was also found that an average condensing steam film coefficient for filmwise condensation was 2000 Btu/hr-ft²-F. 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