{"id":{"repo_id":"brazil-uerj","oai_identifier":"oai:pantheon.ufrj.br:11422/3594"},"canonical_url":"https://search.dev.ndltd.org/etd/brazil-uerj/oai:pantheon.ufrj.br:11422/3594","repository":{"repo_id":"brazil-uerj","name":"Brazil UERJ","base_url":"https://pantheon.ufrj.br/oai/request"},"display":{"title":"Transferência de calor no escoamento bifásico de dois componentes, regime anular, tubo vertical","abstract":"An analytic model for determination of the heat transfer coeficient during the two phase upflow (water + air) in vertical tubes was developped. The design and construction of the equipment is then discussed. The experiments were carried out in one tube, 6mm int and 1500mm of length, which suffered heat fluxes ranging 2 from 0,225 to 0,704 cal/scm². The following ratios water mass flow rate air mass flow rate were used 8, 8.5 and 17. Finally, the experimental results are presented, as well as the values of the heat transfer coeficient determined according to the model.","abstract_html":"An analytic model for determination of the heat transfer coeficient during the two phase upflow (water + air) in vertical tubes was developped. The design and construction of the equipment is then discussed. The experiments were carried out in one tube, 6mm int and 1500mm of length, which suffered heat fluxes ranging 2 from 0,225 to 0,704 cal/scm². The following ratios water mass flow rate air mass flow rate were used 8, 8.5 and 17. Finally, the experimental results are presented, as well as the values of the heat transfer coeficient determined according to the model.","abstract_has_math":false,"creators":["Brum, Nísio de Carvalho Lobo"],"institution":"Universidade Federal do Rio de Janeiro","degree_name":null,"degree_level":null,"degree_discipline":null,"degree_department":null,"school":null,"contributors":[],"advisors":["Schmal, Martin"],"committee_chairs":[],"committee_members":[],"year":1979,"date_issued":"1979-07","date_published":"1979-07","updated_at":"2026-07-24T01:16:04Z","subjects":["Transferência de calor","Escoamento bifásico","Tubos"],"languages":["por"],"rights":["Acesso Aberto"],"rights_urls":[],"identifier_entries":[]},"links":{"outbound_url":"http://hdl.handle.net/11422/3594","outbound_label":"Handle","outbound_source":"dc:identifier.uri"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:contributor.advisor","label":"Advisor","values":["Schmal, Martin"]},{"key":"dc:creator","label":"Author","values":["Brum, Nísio de Carvalho Lobo"]}]},{"id":"academic_context","label":"Academic Context","entries":[{"key":"dc:date.accessioned","label":"Dc Date Accessioned","values":["2018-02-06T13:56:42Z"]},{"key":"dc:date.available","label":"Dc Date Available","values":["2026-05-16T03:05:20Z"]},{"key":"dc:date.issued","label":"Date","values":["1979-07"]},{"key":"dc:publisher","label":"Institution","values":["Universidade Federal do Rio de Janeiro"]},{"key":"dc:publisher.department","label":"Dc Publisher Department","values":["Instituto Alberto Luiz Coimbra de Pós-Graduação e Pesquisa de Engenharia"]},{"key":"dc:type","label":"Dc Type","values":["Dissertação"]}]},{"id":"subjects_keywords","label":"Subjects and Keywords","entries":[{"key":"dc:subject","label":"Dc Subject","values":["Transferência de calor","Escoamento bifásico","Tubos"]}]},{"id":"language_rights","label":"Language and Rights","entries":[{"key":"dc:language","label":"Dc Language","values":["por"]},{"key":"dc:rights","label":"Dc Rights","values":["Acesso Aberto"]}]},{"id":"identifiers","label":"Identifiers","entries":[{"key":"dc:identifier.uri","label":"Identifier URI","values":["http://hdl.handle.net/11422/3594"]}]},{"id":"additional","label":"Additional Metadata","entries":[{"key":"dc:description.abstract","label":"Abstract","values":["An analytic model for determination of the heat transfer coeficient during the two phase upflow (water + air) in vertical tubes was developped. The design and construction of the equipment is then discussed. The experiments were carried out in one tube, 6mm int and 1500mm of length, which suffered heat fluxes ranging 2 from 0,225 to 0,704 cal/scm². The following ratios water mass flow rate air mass flow rate were used 8, 8.5 and 17. Finally, the experimental results are presented, as well as the values of the heat transfer coeficient determined according to the model."]},{"key":"dc:title","label":"Title","values":["Transferência de calor no escoamento bifásico de dois componentes, regime anular, tubo vertical"]}]}],"canonical_facts":{"dc:contributor.advisor":["Schmal, Martin"],"dc:creator":["Brum, Nísio de Carvalho Lobo"],"dc:date.accessioned":["2018-02-06T13:56:42Z"],"dc:date.available":["2026-05-16T03:05:20Z"],"dc:date.issued":["1979-07"],"dc:description.abstract":["An analytic model for determination of the heat transfer coeficient during the two phase upflow (water + air) in vertical tubes was developped. The design and construction of the equipment is then discussed. The experiments were carried out in one tube, 6mm int and 1500mm of length, which suffered heat fluxes ranging 2 from 0,225 to 0,704 cal/scm². The following ratios water mass flow rate air mass flow rate were used 8, 8.5 and 17. Finally, the experimental results are presented, as well as the values of the heat transfer coeficient determined according to the model."],"dc:identifier.uri":["http://hdl.handle.net/11422/3594"],"dc:language":["por"],"dc:publisher":["Universidade Federal do Rio de Janeiro"],"dc:publisher.department":["Instituto Alberto Luiz Coimbra de Pós-Graduação e Pesquisa de Engenharia"],"dc:rights":["Acesso Aberto"],"dc:subject":["Transferência de calor","Escoamento bifásico","Tubos"],"dc:title":["Transferência de calor no escoamento bifásico de dois componentes, regime anular, tubo vertical"],"dc:type":["Dissertação"]},"updated_at":"2026-07-24T01:16:04Z"}