Pub Date : 1900-01-01DOI: 10.1615/tfec2022.cmd.040293
S. Das, M. Molki
{"title":"A CONJUGATE NUSSELT NUMBER CORRELATION FOR A COMPUTER CENTRAL PROCESSING UNIT COOLER","authors":"S. Das, M. Molki","doi":"10.1615/tfec2022.cmd.040293","DOIUrl":"https://doi.org/10.1615/tfec2022.cmd.040293","url":null,"abstract":"","PeriodicalId":330469,"journal":{"name":"Proceeding of 7th Thermal and Fluids Engineering Conference (TFEC)","volume":"41 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122221995","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: 10.1615/tfec2022.bio.041205
Eber Dantas, H. Orlande, G. Dulikravich
{"title":"PARAMETRIC ANALYSIS OF THE THERMAL ABLATION TREATMENT OF CARDIAC ARRHYTHMIA","authors":"Eber Dantas, H. Orlande, G. Dulikravich","doi":"10.1615/tfec2022.bio.041205","DOIUrl":"https://doi.org/10.1615/tfec2022.bio.041205","url":null,"abstract":"","PeriodicalId":330469,"journal":{"name":"Proceeding of 7th Thermal and Fluids Engineering Conference (TFEC)","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131927198","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: 10.1615/tfec2022.ref.041360
A. Gunjal, G. Kumar, A. Srivastava, M. Atrey
{"title":"THE EFFECT OF DEWAR OPERATING PRESSURE ON THE THERMAL PERFORMANCE OF LIQUID NITROGEN COOLED CRYOPROBE","authors":"A. Gunjal, G. Kumar, A. Srivastava, M. Atrey","doi":"10.1615/tfec2022.ref.041360","DOIUrl":"https://doi.org/10.1615/tfec2022.ref.041360","url":null,"abstract":"","PeriodicalId":330469,"journal":{"name":"Proceeding of 7th Thermal and Fluids Engineering Conference (TFEC)","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131841904","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: 10.1615/tfec2022.mpp.040931
M. Farzaneh, N. Zgheib, S. Balachandar, S. Sherif
{"title":"FROST DEPOSITION IN TURBULENT FLOW OVER A COLD PLATE USING DIRECT NUMERICAL SIMULATION","authors":"M. Farzaneh, N. Zgheib, S. Balachandar, S. Sherif","doi":"10.1615/tfec2022.mpp.040931","DOIUrl":"https://doi.org/10.1615/tfec2022.mpp.040931","url":null,"abstract":"","PeriodicalId":330469,"journal":{"name":"Proceeding of 7th Thermal and Fluids Engineering Conference (TFEC)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131179354","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}
{"title":"THE FREQUENCY VARIATION OF PARTICLE OSCILLATIONS DUE TO TEMPERATURE OF LIQUID IN SPONTANEOUS DISPERSION","authors":"Sathish Kumar Gurupatham First, Navid Nasajpour Esfahani, Ashton Hensen, Danel Shah","doi":"10.1615/tfec2022.emt.040527","DOIUrl":"https://doi.org/10.1615/tfec2022.emt.040527","url":null,"abstract":"","PeriodicalId":330469,"journal":{"name":"Proceeding of 7th Thermal and Fluids Engineering Conference (TFEC)","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127199120","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: 10.1615/tfec2022.fip.040964
Rasoul Bayaniahangar, S. Bigham
{"title":"PERFORMANCE CHARACTERIZATION OF ORDERED POROUS VOLUMETRIC SOLAR RECEIVERS","authors":"Rasoul Bayaniahangar, S. Bigham","doi":"10.1615/tfec2022.fip.040964","DOIUrl":"https://doi.org/10.1615/tfec2022.fip.040964","url":null,"abstract":"","PeriodicalId":330469,"journal":{"name":"Proceeding of 7th Thermal and Fluids Engineering Conference (TFEC)","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124845086","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: 10.1615/tfec2022.fnd.041148
Armando Di Meglio, N. Massarotti
{"title":"NUMERICAL INVESTIGATION OF VISCOUS LOSSES IN PIN ARRAY STACK FOR OSCILLATORY FLOWS","authors":"Armando Di Meglio, N. Massarotti","doi":"10.1615/tfec2022.fnd.041148","DOIUrl":"https://doi.org/10.1615/tfec2022.fnd.041148","url":null,"abstract":"","PeriodicalId":330469,"journal":{"name":"Proceeding of 7th Thermal and Fluids Engineering Conference (TFEC)","volume":"54 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128192997","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: 10.1615/tfec2022.aes.040925
Shane P. Riley, Sarah E. Wielgosz, Kevin Yu, Michael J. Durka, B. Nesmith, F. Drymiotis, J. Fleurial, Matthew Barry
Future National Aeronautics and Space Administration deep-space missions are seeking radioisotope propulsion systems (RPS) to have specific powers above 8 [W e /kg], while having thermal conversion efficiencies greater than 12%. The design and optimization of segmented thermoelectric unicouples used within RPS requires a multi-faceted approach to maximize device performance. The design space of a unicouple can span multiple dimensions, requiring immense computational resources to conduct parametric studies. These dimensions include, but are not limited to, the independent cross-sectional areas of the n - and p -type legs, the total height of the unicouple, the length of the high-temperature n - and p -type segments, the cold-side junction temperature and the load resistance applied to the couple, considering a fixed hot-side junction temperature, fixed per-couple heat input, and desired output voltage. To this end, computationally-inexpensive methods that optimize segmented unicouples are presented and compared. These methods include physics-based algorithms that dynamically reduce the design space when nonviable configurations are found, implementation of Golden Section Search (GSS) algorithm when uni-modal behavior is observed for a specific degree of freedom, and successive design space refinement. When using both GSS and successive design space refinement algorithms, an optimum geometry was found with 5,755 times fewer solver calls in comparison to the conventional parametric study without any loss of fidelity. This comparison indicates the proposed optimization methods are robust and accurate, while also drastically reducing the computation time to find the optimum unicouple configuration that maximizes system-level power output. These methods allow for exhaustive trade studies to be conducted of newly proposed heat sources, converter materials and designs, and heat exchange systems
{"title":"OPTIMIZATION METHODS FOR SEGMENTED THERMOELECTRIC GENERATORS","authors":"Shane P. Riley, Sarah E. Wielgosz, Kevin Yu, Michael J. Durka, B. Nesmith, F. Drymiotis, J. Fleurial, Matthew Barry","doi":"10.1615/tfec2022.aes.040925","DOIUrl":"https://doi.org/10.1615/tfec2022.aes.040925","url":null,"abstract":"Future National Aeronautics and Space Administration deep-space missions are seeking radioisotope propulsion systems (RPS) to have specific powers above 8 [W e /kg], while having thermal conversion efficiencies greater than 12%. The design and optimization of segmented thermoelectric unicouples used within RPS requires a multi-faceted approach to maximize device performance. The design space of a unicouple can span multiple dimensions, requiring immense computational resources to conduct parametric studies. These dimensions include, but are not limited to, the independent cross-sectional areas of the n - and p -type legs, the total height of the unicouple, the length of the high-temperature n - and p -type segments, the cold-side junction temperature and the load resistance applied to the couple, considering a fixed hot-side junction temperature, fixed per-couple heat input, and desired output voltage. To this end, computationally-inexpensive methods that optimize segmented unicouples are presented and compared. These methods include physics-based algorithms that dynamically reduce the design space when nonviable configurations are found, implementation of Golden Section Search (GSS) algorithm when uni-modal behavior is observed for a specific degree of freedom, and successive design space refinement. When using both GSS and successive design space refinement algorithms, an optimum geometry was found with 5,755 times fewer solver calls in comparison to the conventional parametric study without any loss of fidelity. This comparison indicates the proposed optimization methods are robust and accurate, while also drastically reducing the computation time to find the optimum unicouple configuration that maximizes system-level power output. These methods allow for exhaustive trade studies to be conducted of newly proposed heat sources, converter materials and designs, and heat exchange systems","PeriodicalId":330469,"journal":{"name":"Proceeding of 7th Thermal and Fluids Engineering Conference (TFEC)","volume":"71 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127386546","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: 10.1615/tfec2022.fnd.040491
Pratik Mahyawansi, Cheng-Xian Lin, Arturo S. Leon
{"title":"UNDERSTANDING THE INFLUENCE OF PRESSURE DISTURBANCE ON THE TRANSITION OF STRATIFIED TO SLUG FLOW","authors":"Pratik Mahyawansi, Cheng-Xian Lin, Arturo S. Leon","doi":"10.1615/tfec2022.fnd.040491","DOIUrl":"https://doi.org/10.1615/tfec2022.fnd.040491","url":null,"abstract":"","PeriodicalId":330469,"journal":{"name":"Proceeding of 7th Thermal and Fluids Engineering Conference (TFEC)","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130870059","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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