Experimental study of a solar desalinator driven by thermal oil circuit

Detalhes bibliográficos
Autor(a) principal: JoÃo Vitor Goes Pinheiro
Data de Publicação: 2014
Tipo de documento: Dissertação
Idioma: por
Título da fonte: Biblioteca Digital de Teses e Dissertações da UFC
Texto Completo: http://www.teses.ufc.br/tde_busca/arquivo.php?codArquivo=12877
Resumo: A solar desalination system basically has two components: the heating unit (solar collectors) and the desalination unit (tower). Among its main advantages, this device does not need electrical power to operate, since it is driven by thermosiphon. In its operation, brackish water is heated and it evaporates. The evaporated vapor rises and hits the coller walls of the above tray, where it condensates and drains through a specially designed geometry, structure to be finally by in a set of gutter. The already demineralized water flows through a main channel where it is stored in a container, outside the desalination tower. The resulting water from this process is pure and free from contamination, either microorganisms or salt. This study analyzes the performance of a desalination system with a desalination tower and a set of three solar collectors. The heat transfer medium between the collector and the tower was thermal oil flow, Lubrax Utile OT-100. The experimental results demonstrate the operation of this type of desalinator, since ideal conditions for its correct functioning was only achieved after the installation of a positive displacement pump, which that promoted the oil circulation. Thermocouples installed in the stages of tower registered the temperature increase throughout the day. Peaks of 77 ÂC were measured in the storage tank of the tower. The mean values of production per day were 25 liters of desalinated water with an average conductivity always less than 10 μS / cm Â, representing a salt removal efficiency greater than 99%. In performance calculation, the best result was obtained when the pumping system was combined with the use of a solar reflector, achieving GOR value of 2.85.
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spelling info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/masterThesisExperimental study of a solar desalinator driven by thermal oil circuitEstudo experimental de um dessalinizador solar acionado por circuito de Ãleo tÃrmico2014-08-13Maria EugÃnia Vieira da Silva14152924349http://lattes.cnpq.br/7370413097210422 Paulo Alexandre Costa Rocha48077330363Raimundo Oliveira de Souza0268888329100608518301http://lattes.cnpq.br/1455942137048025JoÃo Vitor Goes PinheiroUniversidade Federal do CearÃPrograma de PÃs-GraduaÃÃo em Engenharia MecÃnicaUFCBR Energia solar Ãleo tÃrmicodesalination solar thermal energy thermal oilENGENHARIA MECANICAA solar desalination system basically has two components: the heating unit (solar collectors) and the desalination unit (tower). Among its main advantages, this device does not need electrical power to operate, since it is driven by thermosiphon. In its operation, brackish water is heated and it evaporates. The evaporated vapor rises and hits the coller walls of the above tray, where it condensates and drains through a specially designed geometry, structure to be finally by in a set of gutter. The already demineralized water flows through a main channel where it is stored in a container, outside the desalination tower. The resulting water from this process is pure and free from contamination, either microorganisms or salt. This study analyzes the performance of a desalination system with a desalination tower and a set of three solar collectors. The heat transfer medium between the collector and the tower was thermal oil flow, Lubrax Utile OT-100. The experimental results demonstrate the operation of this type of desalinator, since ideal conditions for its correct functioning was only achieved after the installation of a positive displacement pump, which that promoted the oil circulation. Thermocouples installed in the stages of tower registered the temperature increase throughout the day. Peaks of 77 ÂC were measured in the storage tank of the tower. The mean values of production per day were 25 liters of desalinated water with an average conductivity always less than 10 μS / cm Â, representing a salt removal efficiency greater than 99%. In performance calculation, the best result was obtained when the pumping system was combined with the use of a solar reflector, achieving GOR value of 2.85.Um dessalinizador solar possui basicamente duas unidades: a unidade de aquecimento (coletora) e a unidade de dessalinizaÃÃo (torre). Apresenta entre suas principais vantagens o fato de nÃo precisar de energia elÃtrica para seu funcionamento, pois à acionada por termossifÃo. A operaÃÃo se dà pelo aquecimento da Ãgua salobra atà que esta comece a evaporar. O vapor, ao subir e encontrar com uma superfÃcie com temperatura inferior, condensa e escorre atravÃs de estruturas em uma geometria especialmente projetada para este fim e sà entÃo à coletada por um sistema de calhas. A Ãgua jà desmineralizada segue por uma calha principal onde escorre e à armazenada em um recipiente, jà fora da torre de dessalinizaÃÃo. A Ãgua resultante desse processo à praticamente pura e isenta de contaminaÃÃo, tanto por microrganismos como por sais e outros contaminantes. O presente trabalho analisa o desempenho do dessalinizador composto por uma torre de dessalinizaÃÃo e um conjunto composto por trÃs coletores solares acionados por Ãleo tÃrmico Lubrax Utile OT-100. Os resultados experimentais comprovam o funcionamento desse tipo de dessalinizador, visto que condiÃÃes ideais para seu correto funcionamento sà foram atingidas graÃas à instalaÃÃo de uma bomba de deslocamento positivo que promoveu a circulaÃÃo do Ãleo. Termopares instalados nos estÃgios da torre registraram o aumento de temperatura ao longo do dia. Picos de 77ÂC foram medidos no tanque de armazenamento da torre. Valores mÃdios de produÃÃo por dia sÃo de 25 litros de Ãgua, com uma condutividade mÃdia sempre inferior a 10 μS/cmÂ, o que representa uma eficiÃncia na remoÃÃo de sais superior a 99%. No cÃlculo de desempenho, o melhor resultado foi obtido quando o sistema de bombeamento foi combinado com o uso de um refletor solar, obtendo o valor do GOR (RazÃo de ganho de saÃda) de 2,85.CoordenaÃÃo de AperfeÃoamento de Pessoal de NÃvel Superior http://www.teses.ufc.br/tde_busca/arquivo.php?codArquivo=12877application/pdfinfo:eu-repo/semantics/openAccessporreponame:Biblioteca Digital de Teses e Dissertações da UFCinstname:Universidade Federal do Cearáinstacron:UFC2019-01-21T11:26:08Zmail@mail.com -
dc.title.en.fl_str_mv Experimental study of a solar desalinator driven by thermal oil circuit
dc.title.alternative.pt.fl_str_mv Estudo experimental de um dessalinizador solar acionado por circuito de Ãleo tÃrmico
title Experimental study of a solar desalinator driven by thermal oil circuit
spellingShingle Experimental study of a solar desalinator driven by thermal oil circuit
JoÃo Vitor Goes Pinheiro
Energia solar
Ãleo tÃrmico
desalination
solar thermal energy
thermal oil
ENGENHARIA MECANICA
title_short Experimental study of a solar desalinator driven by thermal oil circuit
title_full Experimental study of a solar desalinator driven by thermal oil circuit
title_fullStr Experimental study of a solar desalinator driven by thermal oil circuit
title_full_unstemmed Experimental study of a solar desalinator driven by thermal oil circuit
title_sort Experimental study of a solar desalinator driven by thermal oil circuit
author JoÃo Vitor Goes Pinheiro
author_facet JoÃo Vitor Goes Pinheiro
author_role author
dc.contributor.advisor1.fl_str_mv Maria EugÃnia Vieira da Silva
dc.contributor.advisor1ID.fl_str_mv 14152924349
dc.contributor.advisor1Lattes.fl_str_mv http://lattes.cnpq.br/7370413097210422
dc.contributor.advisor-co1.fl_str_mv Paulo Alexandre Costa Rocha
dc.contributor.advisor-co1ID.fl_str_mv 48077330363
dc.contributor.referee1.fl_str_mv Raimundo Oliveira de Souza
dc.contributor.referee1ID.fl_str_mv 02688883291
dc.contributor.authorID.fl_str_mv 00608518301
dc.contributor.authorLattes.fl_str_mv http://lattes.cnpq.br/1455942137048025
dc.contributor.author.fl_str_mv JoÃo Vitor Goes Pinheiro
contributor_str_mv Maria EugÃnia Vieira da Silva
Paulo Alexandre Costa Rocha
Raimundo Oliveira de Souza
dc.subject.por.fl_str_mv Energia solar
Ãleo tÃrmico
topic Energia solar
Ãleo tÃrmico
desalination
solar thermal energy
thermal oil
ENGENHARIA MECANICA
dc.subject.eng.fl_str_mv desalination
solar thermal energy
thermal oil
dc.subject.cnpq.fl_str_mv ENGENHARIA MECANICA
dc.description.sponsorship.fl_txt_mv CoordenaÃÃo de AperfeÃoamento de Pessoal de NÃvel Superior
dc.description.abstract.por.fl_txt_mv A solar desalination system basically has two components: the heating unit (solar collectors) and the desalination unit (tower). Among its main advantages, this device does not need electrical power to operate, since it is driven by thermosiphon. In its operation, brackish water is heated and it evaporates. The evaporated vapor rises and hits the coller walls of the above tray, where it condensates and drains through a specially designed geometry, structure to be finally by in a set of gutter. The already demineralized water flows through a main channel where it is stored in a container, outside the desalination tower. The resulting water from this process is pure and free from contamination, either microorganisms or salt. This study analyzes the performance of a desalination system with a desalination tower and a set of three solar collectors. The heat transfer medium between the collector and the tower was thermal oil flow, Lubrax Utile OT-100. The experimental results demonstrate the operation of this type of desalinator, since ideal conditions for its correct functioning was only achieved after the installation of a positive displacement pump, which that promoted the oil circulation. Thermocouples installed in the stages of tower registered the temperature increase throughout the day. Peaks of 77 ÂC were measured in the storage tank of the tower. The mean values of production per day were 25 liters of desalinated water with an average conductivity always less than 10 μS / cm Â, representing a salt removal efficiency greater than 99%. In performance calculation, the best result was obtained when the pumping system was combined with the use of a solar reflector, achieving GOR value of 2.85.
Um dessalinizador solar possui basicamente duas unidades: a unidade de aquecimento (coletora) e a unidade de dessalinizaÃÃo (torre). Apresenta entre suas principais vantagens o fato de nÃo precisar de energia elÃtrica para seu funcionamento, pois à acionada por termossifÃo. A operaÃÃo se dà pelo aquecimento da Ãgua salobra atà que esta comece a evaporar. O vapor, ao subir e encontrar com uma superfÃcie com temperatura inferior, condensa e escorre atravÃs de estruturas em uma geometria especialmente projetada para este fim e sà entÃo à coletada por um sistema de calhas. A Ãgua jà desmineralizada segue por uma calha principal onde escorre e à armazenada em um recipiente, jà fora da torre de dessalinizaÃÃo. A Ãgua resultante desse processo à praticamente pura e isenta de contaminaÃÃo, tanto por microrganismos como por sais e outros contaminantes. O presente trabalho analisa o desempenho do dessalinizador composto por uma torre de dessalinizaÃÃo e um conjunto composto por trÃs coletores solares acionados por Ãleo tÃrmico Lubrax Utile OT-100. Os resultados experimentais comprovam o funcionamento desse tipo de dessalinizador, visto que condiÃÃes ideais para seu correto funcionamento sà foram atingidas graÃas à instalaÃÃo de uma bomba de deslocamento positivo que promoveu a circulaÃÃo do Ãleo. Termopares instalados nos estÃgios da torre registraram o aumento de temperatura ao longo do dia. Picos de 77ÂC foram medidos no tanque de armazenamento da torre. Valores mÃdios de produÃÃo por dia sÃo de 25 litros de Ãgua, com uma condutividade mÃdia sempre inferior a 10 μS/cmÂ, o que representa uma eficiÃncia na remoÃÃo de sais superior a 99%. No cÃlculo de desempenho, o melhor resultado foi obtido quando o sistema de bombeamento foi combinado com o uso de um refletor solar, obtendo o valor do GOR (RazÃo de ganho de saÃda) de 2,85.
description A solar desalination system basically has two components: the heating unit (solar collectors) and the desalination unit (tower). Among its main advantages, this device does not need electrical power to operate, since it is driven by thermosiphon. In its operation, brackish water is heated and it evaporates. The evaporated vapor rises and hits the coller walls of the above tray, where it condensates and drains through a specially designed geometry, structure to be finally by in a set of gutter. The already demineralized water flows through a main channel where it is stored in a container, outside the desalination tower. The resulting water from this process is pure and free from contamination, either microorganisms or salt. This study analyzes the performance of a desalination system with a desalination tower and a set of three solar collectors. The heat transfer medium between the collector and the tower was thermal oil flow, Lubrax Utile OT-100. The experimental results demonstrate the operation of this type of desalinator, since ideal conditions for its correct functioning was only achieved after the installation of a positive displacement pump, which that promoted the oil circulation. Thermocouples installed in the stages of tower registered the temperature increase throughout the day. Peaks of 77 ÂC were measured in the storage tank of the tower. The mean values of production per day were 25 liters of desalinated water with an average conductivity always less than 10 μS / cm Â, representing a salt removal efficiency greater than 99%. In performance calculation, the best result was obtained when the pumping system was combined with the use of a solar reflector, achieving GOR value of 2.85.
publishDate 2014
dc.date.issued.fl_str_mv 2014-08-13
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/masterThesis
status_str publishedVersion
format masterThesis
dc.identifier.uri.fl_str_mv http://www.teses.ufc.br/tde_busca/arquivo.php?codArquivo=12877
url http://www.teses.ufc.br/tde_busca/arquivo.php?codArquivo=12877
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language por
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Universidade Federal do CearÃ
dc.publisher.program.fl_str_mv Programa de PÃs-GraduaÃÃo em Engenharia MecÃnica
dc.publisher.initials.fl_str_mv UFC
dc.publisher.country.fl_str_mv BR
publisher.none.fl_str_mv Universidade Federal do CearÃ
dc.source.none.fl_str_mv reponame:Biblioteca Digital de Teses e Dissertações da UFC
instname:Universidade Federal do Ceará
instacron:UFC
reponame_str Biblioteca Digital de Teses e Dissertações da UFC
collection Biblioteca Digital de Teses e Dissertações da UFC
instname_str Universidade Federal do Ceará
instacron_str UFC
institution UFC
repository.name.fl_str_mv -
repository.mail.fl_str_mv mail@mail.com
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