Proceedings of the 10th International Conference on Fluid Flow, Heat and Mass Transfer (FFHMT 2023)最新文献

{"title":"Applications of Water Injection Using Power Dump Flood Technology and Energy Optimization","authors":"Mohamed Abdelhady Ali Elembaby","doi":"10.11159/ffhmt23.194","DOIUrl":"https://doi.org/10.11159/ffhmt23.194","url":null,"abstract":"","PeriodicalId":307960,"journal":{"name":"Proceedings of the 10th International Conference on Fluid Flow, Heat and Mass Transfer (FFHMT 2023)","volume":"36 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134578726","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":"Thermal-Hydraulic Behaviour Comparison of Two Novel Lattice Structures with Simple Cubic BCC Lattice Structure","authors":"Abhishek Dey, V. Raghavan, G. Venkatarathnam","doi":"10.11159/ffhmt23.174","DOIUrl":"https://doi.org/10.11159/ffhmt23.174","url":null,"abstract":"","PeriodicalId":307960,"journal":{"name":"Proceedings of the 10th International Conference on Fluid Flow, Heat and Mass Transfer (FFHMT 2023)","volume":"53 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124049304","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":"Hydrodynamic Profiles Of Computed Tomography-Scanned Polydispersed Beds Produced By Sieving","authors":"Stylianos Kyrimis, R. Raja, L. Armstrong","doi":"10.11159/ffhmt23.171","DOIUrl":"https://doi.org/10.11159/ffhmt23.171","url":null,"abstract":"Computational Fluid Dynamics (CFD) models are a valuable tool for design, optimization, and scaling-up of fixed bed chemical reactors. However, the realistic representation of the catalytic bed structure and the mesh quality of the 3D geometry is of paramount importance to improve the accuracy of CFD models. For the former, computed tomography (CT) is a non-destructive method to map and generate the internal structure of actual fixed bed reactors, formed by catalytic particles produced by sieving, thus directly coupling experiments with CFD models. Due to the local topological complexity of these beds, however, meshing their entire volume would lead to exhaustive computational demands. To reduce these, a suitable sample section should be selected, which respects the bulk and radial porosity of the full bed as accurately as possible. Three distinct sample sections were quantified here for their accuracy, identifying that, due to the highly heterogeneous nature of the full beds, sample selection is case sensitive. A selected section was then meshed, and its hydrodynamic profile resolved, to evaluate its mesh independency. The results highlight the importance of choosing a suitable bed section and mesh size to reduce the computational demands, minimise the computational errors, and achieve the desired level of solution detail.","PeriodicalId":307960,"journal":{"name":"Proceedings of the 10th International Conference on Fluid Flow, Heat and Mass Transfer (FFHMT 2023)","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128684693","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":"Numerical Shape Optimization Of A Manifold Mini-Channel For Battery Thermal Management Of Electric Vehicles","authors":"Seonwoong Byun, Sewon Lee, Hyun Ho Shin, Yongcha Kim","doi":"10.11159/ffhmt23.106","DOIUrl":"https://doi.org/10.11159/ffhmt23.106","url":null,"abstract":"","PeriodicalId":307960,"journal":{"name":"Proceedings of the 10th International Conference on Fluid Flow, Heat and Mass Transfer (FFHMT 2023)","volume":"329 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116791569","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":"Polymeric Hollow Fiber Heat Exchangers for Automotive Applications","authors":"E. Bartuli, J. Bohácek, K. Mraz, J. Hvožďa","doi":"10.11159/ffhmt23.191","DOIUrl":"https://doi.org/10.11159/ffhmt23.191","url":null,"abstract":"","PeriodicalId":307960,"journal":{"name":"Proceedings of the 10th International Conference on Fluid Flow, Heat and Mass Transfer (FFHMT 2023)","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123530152","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 Design of the Scaled-down Experimental Device for Molten Salts","authors":"M. Cihlář, S. Entler, P. Zácha, Václav Dostál, Jan Prehradný, Jakub Špaček","doi":"10.11159/ffhmt23.183","DOIUrl":"https://doi.org/10.11159/ffhmt23.183","url":null,"abstract":"","PeriodicalId":307960,"journal":{"name":"Proceedings of the 10th International Conference on Fluid Flow, Heat and Mass Transfer (FFHMT 2023)","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121860729","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":"Application of Particle Image Velocimetry (PIV) on Newtonian and Two-phase Slurry Flow through the Annulus","authors":"M. U. Siddiqui, M. A. Rahman","doi":"10.11159/ffhmt23.114","DOIUrl":"https://doi.org/10.11159/ffhmt23.114","url":null,"abstract":"","PeriodicalId":307960,"journal":{"name":"Proceedings of the 10th International Conference on Fluid Flow, Heat and Mass Transfer (FFHMT 2023)","volume":"29 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133001629","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":"Thermal Performance Assessment of Reformed Gas Combustion in O2 Injection Lance","authors":"Sirish Parvathaneni, M. Andrade, D. Boulanov","doi":"10.11159/ffhmt23.166","DOIUrl":"https://doi.org/10.11159/ffhmt23.166","url":null,"abstract":"Extended Abstract In HYL direct reduced iron (DRI) process, the reformed gas (composed of CO, CO2, CH4, H2, and H2O) from the steam/methane reformer with a temperature of ~1150 K is subjected to pre-heating to provide sufficient temperature for the DRI process (i.e., ~1250 K) in the shaft furnace. Such pre-heating is achieved by the O2/reformed gas combustion. In the HYL process, the O2 is injected through an ‘L-shaped lance’ penetrating the flow path of reformed gas. The combustion performance is significantly influenced by the lance configuration and O2/reformed gas operating variables such as flow rates and temperature. For example, the formation of local ignitable gaseous composition may lead to issues related to explosion while insufficient O2 velocity at nozzle exit leads to nozzle wear out due to flashback. Therefore, the design of the nozzle in addition to gas flow conditions governs the local mixing of O2 and reformed gas which ultimately influences the local reaction mechanisms and flame formation. In the present work, the fluid flow, reaction mechanisms, and flame stability in the O2 injection lance system are investigated using computational fluid dynamics (CFD). The reformed gas enters into the horizontal cylindrical tube with diameter of 0.96 m and length of ≈ 7m. The O2 injection lance penetrates the cylindrical tube and the O2 exit is located at centre of the tube. The nozzle diameter at O2 exit is 3 cm. Reynolds-averaged Navier-Stokes (RANS) coupled with the shear stress transport (SST) k-ω turbulence model is used to simulate the turbulent flow (Reynolds number at O2 inlet ~ 10). The inlet mass flow rate and temperature of O2 and reformed gas are 0.66 and 19.7 kg/s, 303 K and 1163 K respectively. The reformed gas at the inlet is composed of 4.89 vol % CO2, 15 vol % CO, 67 vol % H2, 1.71 vol % H2O, 10.76 vol % CH4, 1.11 vol % N2. The CO, H2, CH4 combustion and water gas shift reactions are implemented [1]. Further details of the geometry and the model will be presented in the conference. Due to penetration of the lance into the flow path of reformed gas, a low-pressure region is created in the latter upper part of lance region and the flow field predicted is inclined towards the upper region. The CO, H2, CH4 combustion reactions led to an increase in the spot temperature up to 4950 K. However, the predicted outlet temperature averaged across the pipe cross section is 1270 K. Further, due to dominant backward water-gas shift reaction the CO at the outlet increased from 15 vol % to 17.83 %. Further details of the effect of flow variables and nozzle design on the gaseous mixing, reaction rates, temperature and species distribution, flame stability (i.e., flashback and flame lifting), and outlet composition will be presented in the conference.","PeriodicalId":307960,"journal":{"name":"Proceedings of the 10th International Conference on Fluid Flow, Heat and Mass Transfer (FFHMT 2023)","volume":"73 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132080100","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":"Evaluating Two-Phase Flow Patterns in Airlift pumps Using Image Processing Technique","authors":"Dana Fadlalla, W. Ahmed, David Weales, M. Moussa","doi":"10.11159/ffhmt23.179","DOIUrl":"https://doi.org/10.11159/ffhmt23.179","url":null,"abstract":"","PeriodicalId":307960,"journal":{"name":"Proceedings of the 10th International Conference on Fluid Flow, Heat and Mass Transfer (FFHMT 2023)","volume":"46 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131913640","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":"A CFD Analysis of Energy Separation of Rectangular Shape Cold Orifice Vortex Tube","authors":"N. Bagre, A. Parekh, V. K. Patel","doi":"10.11159/ffhmt23.112","DOIUrl":"https://doi.org/10.11159/ffhmt23.112","url":null,"abstract":"","PeriodicalId":307960,"journal":{"name":"Proceedings of the 10th International Conference on Fluid Flow, Heat and Mass Transfer (FFHMT 2023)","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128032606","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}