Pub Date : 1900-01-01DOI: 10.26678/abcm.creem2023.cre2023-0086
J. Bastos, J. Santos, Andreia Aoyagui Nascimento
. Due to the importance of studying the dynamics of fluids and the impasses in carrying out experiments in this context, it is relevant to develop computational means to visualize flows that are efficient and can offer results that are sufficiently close to reality. That said, this work consists of verifying the IMERSPEC 2D methodology, which combines Fourier pseudospectral and immersed boundary methods to simulate the boundary conditions, based on the simulation of a laminar and two-dimensional flow between two plates over a square cross section ledge. The objective is to validate the methodology and the independence of the results by refining the division number of the physical domain. The results presented in the present work show the velocity fields obtained from four simulations with different placement points and the experimental results by Onur and Baydar (1992), that was used as a reference, are compared. It was possible to observe that the proposal offers a satisfactory approximation to reality under the suggested conditions.
{"title":"SIMULAÇÃO COMPUTACIONAL DE ESCOAMENTOS SOBRE RESSALTO QUADRADO NO INTERIOR DE DUTO","authors":"J. Bastos, J. Santos, Andreia Aoyagui Nascimento","doi":"10.26678/abcm.creem2023.cre2023-0086","DOIUrl":"https://doi.org/10.26678/abcm.creem2023.cre2023-0086","url":null,"abstract":". Due to the importance of studying the dynamics of fluids and the impasses in carrying out experiments in this context, it is relevant to develop computational means to visualize flows that are efficient and can offer results that are sufficiently close to reality. That said, this work consists of verifying the IMERSPEC 2D methodology, which combines Fourier pseudospectral and immersed boundary methods to simulate the boundary conditions, based on the simulation of a laminar and two-dimensional flow between two plates over a square cross section ledge. The objective is to validate the methodology and the independence of the results by refining the division number of the physical domain. The results presented in the present work show the velocity fields obtained from four simulations with different placement points and the experimental results by Onur and Baydar (1992), that was used as a reference, are compared. It was possible to observe that the proposal offers a satisfactory approximation to reality under the suggested conditions.","PeriodicalId":309145,"journal":{"name":"XXIX Congresso Nacional de Estudantes de Engenharia Mecânica","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121926830","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 1900-01-01DOI: 10.26678/abcm.creem2023.cre2023-0062
Arthur Vilaronga, R. Rezende, L. Manetti, Elaine Maria Cardoso
. Due to the market demand for devices with high processing capacity, thermal control techniques involving conduction and convection have become ineffective, given the requirement to dissipate high heat fluxes. Thus, thermal management involving phase change has become an alternative. Therefore, this work proposes to evaluate the pool boiling heat transfer of deionized water using a micro pin fin heating surface of metal foam. The micro pin fins were manufactured using the EDM process. For comparison purposes, a flat surface and a surface with the addition of metal foam, with the same thickness as the micro pin fins, were tested under the same operating conditions. It was found that segmented channels, originating from the addition of micro pin fins, benefit heat transfer at high heat fluxes due to the combination of increased surface area and reduced resistance to the departure of vapor bubbles .
{"title":"Micropilares porosos para intensificação da transferência de calor por ebulição","authors":"Arthur Vilaronga, R. Rezende, L. Manetti, Elaine Maria Cardoso","doi":"10.26678/abcm.creem2023.cre2023-0062","DOIUrl":"https://doi.org/10.26678/abcm.creem2023.cre2023-0062","url":null,"abstract":". Due to the market demand for devices with high processing capacity, thermal control techniques involving conduction and convection have become ineffective, given the requirement to dissipate high heat fluxes. Thus, thermal management involving phase change has become an alternative. Therefore, this work proposes to evaluate the pool boiling heat transfer of deionized water using a micro pin fin heating surface of metal foam. The micro pin fins were manufactured using the EDM process. For comparison purposes, a flat surface and a surface with the addition of metal foam, with the same thickness as the micro pin fins, were tested under the same operating conditions. It was found that segmented channels, originating from the addition of micro pin fins, benefit heat transfer at high heat fluxes due to the combination of increased surface area and reduced resistance to the departure of vapor bubbles .","PeriodicalId":309145,"journal":{"name":"XXIX Congresso Nacional de Estudantes de Engenharia Mecânica","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123338892","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 1900-01-01DOI: 10.26678/abcm.creem2023.cre2023-0029
B. Andrade, Gabriel Alves Kozan, Giuliana Sardi Venter
posicionamento
{"title":"OTIMIZAÇÃO DO POSICIONAMENTO DE UM ATUADOR PIEZOELÉTRICO MULTICAMADAS PARA COLHEITA DE ENERGIA EM TORNEAMENTO INTERNO","authors":"B. Andrade, Gabriel Alves Kozan, Giuliana Sardi Venter","doi":"10.26678/abcm.creem2023.cre2023-0029","DOIUrl":"https://doi.org/10.26678/abcm.creem2023.cre2023-0029","url":null,"abstract":"posicionamento","PeriodicalId":309145,"journal":{"name":"XXIX Congresso Nacional de Estudantes de Engenharia Mecânica","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123462081","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 1900-01-01DOI: 10.26678/abcm.creem2023.cre2023-0056
Pedro Pio Rosa Nishida, Jéssica Cristiane Andrade, A. Antunes, Pedro Henrique Silva Santos
modelo
{"title":"VALIDAÇÃO DE UM MODELO NUMÉRICO DA VIBRAÇÃO DE UMA PLACA METÁLICA RETANGULAR SIMPLESMENTE APOIADA","authors":"Pedro Pio Rosa Nishida, Jéssica Cristiane Andrade, A. Antunes, Pedro Henrique Silva Santos","doi":"10.26678/abcm.creem2023.cre2023-0056","DOIUrl":"https://doi.org/10.26678/abcm.creem2023.cre2023-0056","url":null,"abstract":"modelo","PeriodicalId":309145,"journal":{"name":"XXIX Congresso Nacional de Estudantes de Engenharia Mecânica","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123517252","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 1900-01-01DOI: 10.26678/abcm.creem2023.cre2023-0047
Lucas Melegari de Souza, Robson Leal da Silva
{"title":"EVALUATION OF THE MECHANICAL DURABILITY IN WOOD PELLETS THROUGH DIMENSIONAL ANALYSIS","authors":"Lucas Melegari de Souza, Robson Leal da Silva","doi":"10.26678/abcm.creem2023.cre2023-0047","DOIUrl":"https://doi.org/10.26678/abcm.creem2023.cre2023-0047","url":null,"abstract":"","PeriodicalId":309145,"journal":{"name":"XXIX Congresso Nacional de Estudantes de Engenharia Mecânica","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125351221","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 1900-01-01DOI: 10.26678/abcm.creem2023.cre2023-0027
Davi Judá De Souza Fraga, Julio Cezar Pedrosa da Silva
{"title":"USO DO MÉTODO DE ELEMENTOS FINITOS PARA ESTUDO DAS TENSÕES DE MEMBRANA EM CHAPAS METÁLICAS","authors":"Davi Judá De Souza Fraga, Julio Cezar Pedrosa da Silva","doi":"10.26678/abcm.creem2023.cre2023-0027","DOIUrl":"https://doi.org/10.26678/abcm.creem2023.cre2023-0027","url":null,"abstract":"","PeriodicalId":309145,"journal":{"name":"XXIX Congresso Nacional de Estudantes de Engenharia Mecânica","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125817156","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 1900-01-01DOI: 10.26678/abcm.creem2023.cre2023-0143
Max Breno Bezerra Muniz, Clécio Vicente da Silva, Inaldo Amorim, Itamar Lira, J. Torquato, Márcio Rolemberg Freire, Oscar Araujo Filho, Rafael Santana, Moisés Silva
{"title":"FABRICAÇÃO E CARACTERIZAÇÃO DE PÓS DA LIGA DE ALUMÍNIO AA3107 PROCESSADOS ATRAVÉS DE MOAGEM DE ALTA ENERGIA","authors":"Max Breno Bezerra Muniz, Clécio Vicente da Silva, Inaldo Amorim, Itamar Lira, J. Torquato, Márcio Rolemberg Freire, Oscar Araujo Filho, Rafael Santana, Moisés Silva","doi":"10.26678/abcm.creem2023.cre2023-0143","DOIUrl":"https://doi.org/10.26678/abcm.creem2023.cre2023-0143","url":null,"abstract":"","PeriodicalId":309145,"journal":{"name":"XXIX Congresso Nacional de Estudantes de Engenharia Mecânica","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131032878","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 1900-01-01DOI: 10.26678/abcm.creem2023.cre2023-0019
Alexandre Mateus Mendonça Bezerra
. Stoplogs are robust equipment normally used in sewage treatment plants, irrigation and hydroelectric power plants, with the aim of containing the flow of water in the upstream-downstream direction. However, when the passage of water is allowed, storage control of this equipment is not always planned out. The objective of this work is to carry out a structural analysis of the suspension device of the supplementary water intake of the Oiticica dam in Jucurutu/RN, used to support and maintain the lower panel of the stoplog during use and opening of the water intake, given the need for storage. For this, a U-beam with a 4”x1.5/8”x3/16” profile was considered, with bending stress calculations being performed for a beam supported on both ends, and a structural static simulation was carried out, considering the movement made by the electric hoist. The results of these calculations attested that the suggested beam is sufficient to safely keep the lower panel of the stoplog suspended.
{"title":"ANÁLISE ESTRUTURAL DE UM DISPOSITIVO DE CALAGEM PARA A COMPORTA ENSECADEIRA DA BARRAGEM OITICICA EM JUCURUTU/RN","authors":"Alexandre Mateus Mendonça Bezerra","doi":"10.26678/abcm.creem2023.cre2023-0019","DOIUrl":"https://doi.org/10.26678/abcm.creem2023.cre2023-0019","url":null,"abstract":". Stoplogs are robust equipment normally used in sewage treatment plants, irrigation and hydroelectric power plants, with the aim of containing the flow of water in the upstream-downstream direction. However, when the passage of water is allowed, storage control of this equipment is not always planned out. The objective of this work is to carry out a structural analysis of the suspension device of the supplementary water intake of the Oiticica dam in Jucurutu/RN, used to support and maintain the lower panel of the stoplog during use and opening of the water intake, given the need for storage. For this, a U-beam with a 4”x1.5/8”x3/16” profile was considered, with bending stress calculations being performed for a beam supported on both ends, and a structural static simulation was carried out, considering the movement made by the electric hoist. The results of these calculations attested that the suggested beam is sufficient to safely keep the lower panel of the stoplog suspended.","PeriodicalId":309145,"journal":{"name":"XXIX Congresso Nacional de Estudantes de Engenharia Mecânica","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123882663","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 1900-01-01DOI: 10.26678/abcm.creem2023.cre2023-0135
Victor Vaurek Dimbarre, Pedro Leineker Ochoski Machado, Allefe Chagas Vaz, Thomas Siqueira Pereira, Paulo Henrique DIAS DOS SANTOS, Thiago Antonini Alves
. Heat exchangers are devices that facilitate the heat exchange between two or more fluids that are at different temperatures and apart from one another, and they can have several different forms, including shell-and-tubes, serpentine, fins, plates, concentric tubes, among others. In the present work an experimental investigation of slope influence of thermosyphons applied to cross-flow heat exchangers was performed. To that effect, thermosyphons were manufactured in copper with an outer diameter of 9.45mm, an inner diameter of 7.75mm, and a total length of 180mm, of which 60mm are for the evaporator, 60mm are for the adiabatic section, and 60mm are for the condenser. The thermosyphons were filled with distilled water with 40% of the evaporator volume, tested experimentally at different slopes (0, 22.5, 45, 67.5, and 90° in relation to the horizontal) under power dissipations ranging from 1 to 11W and its cooling being performed by air forced convection. The thermal analysis was based on the temperature distribution along the length, on the operating temperature and on the thermal resistance. In view of the results observed for thermal performance, it was possible to determine that the best working slope was 67.5° in relation to the horizontal, given that it presented lower values of thermal resistance and lower operating temperature.
{"title":"INVESTIGAÇÃO EXPERIMENTAL DA INFLUÊNCIA DA INCLINAÇÃO DE TERMOSSIFÕES APLICADOS A TROCADORES DE CALOR DE ESCOAMENTO CRUZADO","authors":"Victor Vaurek Dimbarre, Pedro Leineker Ochoski Machado, Allefe Chagas Vaz, Thomas Siqueira Pereira, Paulo Henrique DIAS DOS SANTOS, Thiago Antonini Alves","doi":"10.26678/abcm.creem2023.cre2023-0135","DOIUrl":"https://doi.org/10.26678/abcm.creem2023.cre2023-0135","url":null,"abstract":". Heat exchangers are devices that facilitate the heat exchange between two or more fluids that are at different temperatures and apart from one another, and they can have several different forms, including shell-and-tubes, serpentine, fins, plates, concentric tubes, among others. In the present work an experimental investigation of slope influence of thermosyphons applied to cross-flow heat exchangers was performed. To that effect, thermosyphons were manufactured in copper with an outer diameter of 9.45mm, an inner diameter of 7.75mm, and a total length of 180mm, of which 60mm are for the evaporator, 60mm are for the adiabatic section, and 60mm are for the condenser. The thermosyphons were filled with distilled water with 40% of the evaporator volume, tested experimentally at different slopes (0, 22.5, 45, 67.5, and 90° in relation to the horizontal) under power dissipations ranging from 1 to 11W and its cooling being performed by air forced convection. The thermal analysis was based on the temperature distribution along the length, on the operating temperature and on the thermal resistance. In view of the results observed for thermal performance, it was possible to determine that the best working slope was 67.5° in relation to the horizontal, given that it presented lower values of thermal resistance and lower operating temperature.","PeriodicalId":309145,"journal":{"name":"XXIX Congresso Nacional de Estudantes de Engenharia Mecânica","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"120959879","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 1900-01-01DOI: 10.26678/abcm.creem2023.cre2023-0101
Jhullye Maressa Trindade Gonçalves, Carla Allane de Lima Nonato, T. Wanzeler, Danilo Silva Santos,
{"title":"A UTILIZAÇÃO DA MATRIZ SWOT E METODOLOGIA 5W2H: UMA PROPOSTA DE MELHORIA PARA O PARQUE DE TECNOLOGIA E INCUBADORA DE EMPRESAS.","authors":"Jhullye Maressa Trindade Gonçalves, Carla Allane de Lima Nonato, T. Wanzeler, Danilo Silva Santos,","doi":"10.26678/abcm.creem2023.cre2023-0101","DOIUrl":"https://doi.org/10.26678/abcm.creem2023.cre2023-0101","url":null,"abstract":"","PeriodicalId":309145,"journal":{"name":"XXIX Congresso Nacional de Estudantes de Engenharia Mecânica","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114667720","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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