{"id":{"repo_id":"birmingham","oai_identifier":"oai:etheses.bham.ac.uk:1426"},"canonical_url":"https://search.dev.ndltd.org/etd/birmingham/oai:etheses.bham.ac.uk:1426","repository":{"repo_id":"birmingham","name":"University of Birmingham","base_url":"https://etheses.bham.ac.uk/cgi/oai2"},"display":{"title":"The condensation of vapours of binary immiscible liquids","abstract":"Heat transfer data are reported for the condensation of steam-toluene and steam-trichloroethylene eutectic mixtures on 25.4 mm diameter oxidised copper and gold plated horizontal tubes. Data are also presented for the condensation of pure steam, toluene and trichloroethylene on the oxidised copper tube and the film heat transfer coefficients obtained agree to within ± 20% of the Labunstov form of the Nusselt equation. For the binary immiscible systems the heat transfer coefficients decrease as the temperature difference increases, with the oxidised copper surface giving higher coefficients than the gold. These differences are attributed to the two observed fundamental mechanisms of condensation, a channelling mode on the oxidised copper and a standing drop mode on the gold. Models based on the different mechanisms are proposed and predict the experimental results to within ± 20%. Finally it is postulated that the temperature dependent mutual solubilities affords an explanation of the formation of the large number of very small droplets observed during the condensation of these eutectic mixtures.","abstract_html":"Heat transfer data are reported for the condensation of steam-toluene and steam-trichloroethylene eutectic mixtures on 25.4 mm diameter oxidised copper and gold plated horizontal tubes. Data are also presented for the condensation of pure steam, toluene and trichloroethylene on the oxidised copper tube and the film heat transfer coefficients obtained agree to within ± 20% of the Labunstov form of the Nusselt equation. For the binary immiscible systems the heat transfer coefficients decrease as the temperature difference increases, with the oxidised copper surface giving higher coefficients than the gold. These differences are attributed to the two observed fundamental mechanisms of condensation, a channelling mode on the oxidised copper and a standing drop mode on the gold. Models based on the different mechanisms are proposed and predict the experimental results to within ± 20%. Finally it is postulated that the temperature dependent mutual solubilities affords an explanation of the formation of the large number of very small droplets observed during the condensation of these eutectic mixtures.","abstract_has_math":false,"creators":["Deakin, Alan Walter"],"institution":"University of Birmingham","degree_name":"d_ph","degree_level":"d_ph","degree_discipline":null,"degree_department":null,"school":null,"contributors":[],"advisors":[],"committee_chairs":[],"committee_members":[],"year":1976,"date_issued":"1976","date_published":"1976","updated_at":"2026-07-24T01:11:33Z","subjects":["TP Chemical technology"],"languages":[],"rights":[],"rights_urls":[],"identifier_entries":[]},"links":{"outbound_url":null,"outbound_label":null,"outbound_source":null},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:contributor.sponsor","label":"Sponsor","values":["other"]},{"key":"dc:creator","label":"Author","values":["Deakin, Alan Walter"]}]},{"id":"academic_context","label":"Academic Context","entries":[{"key":"dc:date","label":"Dc Date","values":["1976"]},{"key":"dc:date.issued","label":"Date","values":["1976"]},{"key":"dc:publisher.department","label":"Dc Publisher Department","values":["Faculty of Engineering","School of Chemical Engineering"]},{"key":"dc:publisher.institution","label":"Dc Publisher Institution","values":["University of Birmingham"]},{"key":"dc:relation.isreferencedby","label":"Dc Relation Isreferencedby","values":["http://etheses.bham.ac.uk//id/eprint/1426/"]},{"key":"dc:type","label":"Dc Type","values":["Thesis"]},{"key":"dc:type.qualificationlevel","label":"Dc Type Qualificationlevel","values":["d_ph"]},{"key":"dc:type.qualificationname","label":"Dc Type Qualificationname","values":["d_ph"]}]},{"id":"subjects_keywords","label":"Subjects and Keywords","entries":[{"key":"dc:subject","label":"Dc Subject","values":["TP Chemical technology"]}]},{"id":"identifiers","label":"Identifiers","entries":[{"key":"dc:identifier.uri","label":"Identifier URI","values":["http://etheses.bham.ac.uk//id/eprint/1426/1/Deakin76PhD.pdf"]}]},{"id":"additional","label":"Additional Metadata","entries":[{"key":"dc:description.abstract","label":"Abstract","values":["Heat transfer data are reported for the condensation of steam-toluene and steam-trichloroethylene eutectic mixtures on 25.4 mm diameter oxidised copper and gold plated horizontal tubes. Data are also presented for the condensation of pure steam, toluene and trichloroethylene on the oxidised copper tube and the film heat transfer coefficients obtained agree to within ± 20% of the Labunstov form of the Nusselt equation. For the binary immiscible systems the heat transfer coefficients decrease as the temperature difference increases, with the oxidised copper surface giving higher coefficients than the gold. These differences are attributed to the two observed fundamental mechanisms of condensation, a channelling mode on the oxidised copper and a standing drop mode on the gold. Models based on the different mechanisms are proposed and predict the experimental results to within ± 20%. Finally it is postulated that the temperature dependent mutual solubilities affords an explanation of the formation of the large number of very small droplets observed during the condensation of these eutectic mixtures."]},{"key":"dc:format","label":"Dc Format","values":["application/pdf"]},{"key":"dc:title","label":"Title","values":["The condensation of vapours of binary immiscible liquids"]}]}],"canonical_facts":{"dc:contributor.sponsor":["other"],"dc:creator":["Deakin, Alan Walter"],"dc:date":["1976"],"dc:date.issued":["1976"],"dc:description.abstract":["Heat transfer data are reported for the condensation of steam-toluene and steam-trichloroethylene eutectic mixtures on 25.4 mm diameter oxidised copper and gold plated horizontal tubes. Data are also presented for the condensation of pure steam, toluene and trichloroethylene on the oxidised copper tube and the film heat transfer coefficients obtained agree to within ± 20% of the Labunstov form of the Nusselt equation. For the binary immiscible systems the heat transfer coefficients decrease as the temperature difference increases, with the oxidised copper surface giving higher coefficients than the gold. These differences are attributed to the two observed fundamental mechanisms of condensation, a channelling mode on the oxidised copper and a standing drop mode on the gold. Models based on the different mechanisms are proposed and predict the experimental results to within ± 20%. Finally it is postulated that the temperature dependent mutual solubilities affords an explanation of the formation of the large number of very small droplets observed during the condensation of these eutectic mixtures."],"dc:format":["application/pdf"],"dc:identifier.uri":["http://etheses.bham.ac.uk//id/eprint/1426/1/Deakin76PhD.pdf"],"dc:publisher.department":["Faculty of Engineering","School of Chemical Engineering"],"dc:publisher.institution":["University of Birmingham"],"dc:relation.isreferencedby":["http://etheses.bham.ac.uk//id/eprint/1426/"],"dc:subject":["TP Chemical technology"],"dc:title":["The condensation of vapours of binary immiscible liquids"],"dc:type":["Thesis"],"dc:type.qualificationlevel":["d_ph"],"dc:type.qualificationname":["d_ph"]},"updated_at":"2026-07-24T01:11:33Z"}