{"id":{"repo_id":"brazil-uerj","oai_identifier":"oai:pantheon.ufrj.br:11422/3660"},"canonical_url":"https://search.dev.ndltd.org/etd/brazil-uerj/oai:pantheon.ufrj.br:11422/3660","repository":{"repo_id":"brazil-uerj","name":"Brazil UERJ","base_url":"https://pantheon.ufrj.br/oai/request"},"display":{"title":"Imagem e concentração em coletores solares cilíndrico-parabólicos","abstract":"The potential utilization of parabolic trough collectors for the production of industrial process and domestic uses is largely expected. Nowadays a big effort in terms of research and development must be done to be achieved an optimun design for this equipament. Utilising the ray tracing method and the solar dish concept, this work analyses the influence of the geometric characteristics of the components (reflector, absorber, envellope tube). Type of the frame and materials used on the immage and the concentrating factors, the case of perfect pointing or defocused to the sun is considered. From the theory are obtained the dimensions and geometry for the equipament, the form and the surface finish of the reflector and adequated supporting frame related with a given concentrating factor and working period of time for a choosen site.","abstract_html":"The potential utilization of parabolic trough collectors for the production of industrial process and domestic uses is largely expected. Nowadays a big effort in terms of research and development must be done to be achieved an optimun design for this equipament. Utilising the ray tracing method and the solar dish concept, this work analyses the influence of the geometric characteristics of the components (reflector, absorber, envellope tube). Type of the frame and materials used on the immage and the concentrating factors, the case of perfect pointing or defocused to the sun is considered. From the theory are obtained the dimensions and geometry for the equipament, the form and the surface finish of the reflector and adequated supporting frame related with a given concentrating factor and working period of time for a choosen site.","abstract_has_math":false,"creators":["Castilho, Bernadette Soares da Cunha de"],"institution":"Universidade Federal do Rio de Janeiro","degree_name":null,"degree_level":null,"degree_discipline":null,"degree_department":null,"school":null,"contributors":[],"advisors":["Bastos, Leopoldo Eurico Gonçalves"],"committee_chairs":[],"committee_members":[],"year":1983,"date_issued":"1983-12","date_published":"1983-12","updated_at":"2026-07-24T01:16:07Z","subjects":["Energia solar","Energia térmica","Eficiência energética"],"languages":["por"],"rights":["Acesso Aberto"],"rights_urls":[],"identifier_entries":[]},"links":{"outbound_url":"http://hdl.handle.net/11422/3660","outbound_label":"Handle","outbound_source":"dc:identifier.uri"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:contributor.advisor","label":"Advisor","values":["Bastos, Leopoldo Eurico Gonçalves"]},{"key":"dc:creator","label":"Author","values":["Castilho, Bernadette Soares da Cunha de"]}]},{"id":"academic_context","label":"Academic Context","entries":[{"key":"dc:date.accessioned","label":"Dc Date Accessioned","values":["2018-02-27T15:38:26Z"]},{"key":"dc:date.available","label":"Dc Date Available","values":["2026-05-16T03:00:55Z"]},{"key":"dc:date.issued","label":"Date","values":["1983-12"]},{"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":["Energia solar","Energia térmica","Eficiência energética"]}]},{"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/11422/3660"]}]},{"id":"additional","label":"Additional Metadata","entries":[{"key":"dc:description.abstract","label":"Abstract","values":["The potential utilization of parabolic trough collectors for the production of industrial process and domestic uses is largely expected. Nowadays a big effort in terms of research and development must be done to be achieved an optimun design for this equipament. Utilising the ray tracing method and the solar dish concept, this work analyses the influence of the geometric characteristics of the components (reflector, absorber, envellope tube). Type of the frame and materials used on the immage and the concentrating factors, the case of perfect pointing or defocused to the sun is considered. From the theory are obtained the dimensions and geometry for the equipament, the form and the surface finish of the reflector and adequated supporting frame related with a given concentrating factor and working period of time for a choosen site."]},{"key":"dc:title","label":"Title","values":["Imagem e concentração em coletores solares cilíndrico-parabólicos"]}]}],"canonical_facts":{"dc:contributor.advisor":["Bastos, Leopoldo Eurico Gonçalves"],"dc:creator":["Castilho, Bernadette Soares da Cunha de"],"dc:date.accessioned":["2018-02-27T15:38:26Z"],"dc:date.available":["2026-05-16T03:00:55Z"],"dc:date.issued":["1983-12"],"dc:description.abstract":["The potential utilization of parabolic trough collectors for the production of industrial process and domestic uses is largely expected. Nowadays a big effort in terms of research and development must be done to be achieved an optimun design for this equipament. Utilising the ray tracing method and the solar dish concept, this work analyses the influence of the geometric characteristics of the components (reflector, absorber, envellope tube). Type of the frame and materials used on the immage and the concentrating factors, the case of perfect pointing or defocused to the sun is considered. From the theory are obtained the dimensions and geometry for the equipament, the form and the surface finish of the reflector and adequated supporting frame related with a given concentrating factor and working period of time for a choosen site."],"dc:identifier.uri":["http://hdl.handle.net/11422/3660"],"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":["Energia solar","Energia térmica","Eficiência energética"],"dc:title":["Imagem e concentração em coletores solares cilíndrico-parabólicos"],"dc:type":["Dissertação"]},"updated_at":"2026-07-24T01:16:07Z"}