Rosa Moreno Jimenez, C. Marliere, B. Creton, O. Nguyen, Lionel Teulé-Gay, S. Marre
Global warming-related climate change demands prompt actions to reduce greenhouse gas (GHG) emissions, particularly carbon dioxide. To reduce GHGs, biomass-based biofuels containing oxygenated compounds represent a promising alternative of energy source. To convert biomass into energy, a variety of conversion processes performed at high pressure and high temperature conditions are required, and the design of such processes need as support, thermophysical property data, particularly thermal conductivity . The conventional methods to measure thermal conductivity are often time consuming and/or requires important quantities of products. Microfluidics has been proven as an appropriate support to overcome these issues thanks to its low reagent consumption, fast screening, low operating time, improvement of heat and mass transfers etc. It allows the automated manipulation, performing high throughput experimentation. In addition, over the last 10 years, a new field of investigation called "high pressure and high temperature (HP-HT) microfluidics" [1] has gained increasing interest, in particular for the determination of the thermo-physical properties of fluids systems[2] [3]. Currently, available methods for measuring thermal conductivity in microfluidics are not adapted to HP-HT conditions . Also, thermal conductivity data of oxygenated compounds are scarce in literature or not available in extreme conditions. Therefore, the use of alternative methods such as models, combined with microfluidics, are essential to complement experimental data. Machine learning (ML)
{"title":"Acquisition and Physico-Chemical Data Analysis of Oxygenated Compounds From Biomass Using Microfluidics","authors":"Rosa Moreno Jimenez, C. Marliere, B. Creton, O. Nguyen, Lionel Teulé-Gay, S. Marre","doi":"10.11159/htff22.181","DOIUrl":"https://doi.org/10.11159/htff22.181","url":null,"abstract":"Global warming-related climate change demands prompt actions to reduce greenhouse gas (GHG) emissions, particularly carbon dioxide. To reduce GHGs, biomass-based biofuels containing oxygenated compounds represent a promising alternative of energy source. To convert biomass into energy, a variety of conversion processes performed at high pressure and high temperature conditions are required, and the design of such processes need as support, thermophysical property data, particularly thermal conductivity . The conventional methods to measure thermal conductivity are often time consuming and/or requires important quantities of products. Microfluidics has been proven as an appropriate support to overcome these issues thanks to its low reagent consumption, fast screening, low operating time, improvement of heat and mass transfers etc. It allows the automated manipulation, performing high throughput experimentation. In addition, over the last 10 years, a new field of investigation called \"high pressure and high temperature (HP-HT) microfluidics\" [1] has gained increasing interest, in particular for the determination of the thermo-physical properties of fluids systems[2] [3]. Currently, available methods for measuring thermal conductivity in microfluidics are not adapted to HP-HT conditions . Also, thermal conductivity data of oxygenated compounds are scarce in literature or not available in extreme conditions. Therefore, the use of alternative methods such as models, combined with microfluidics, are essential to complement experimental data. Machine learning (ML)","PeriodicalId":385356,"journal":{"name":"Proceedings of the 8th World Congress on Mechanical, Chemical, and Material Engineering","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126819049","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}
L. Sanmiquel, M. Bascompta, Nor Sidki, J. Vives, J. Lopez
Extended Abstract This research presents the case of the analysis of an accident in an aggregate processing plant through the Feyer & Williamson method [1,2]. This method was designed to allow the coding of a time sequence of up to 3 events that have preceded a given accident. These events are called Preceding Events and are characterised as determining factors for the genesis of the accident. In addition, causal factors can also be identified, which are considered to have influenced the accident but not in such a decisive way as the events. The method makes it possible to identify 4 types of events and 8 types of causal factors, as well as different types of human error that have directly influenced the origin of the accident. Results: Once all the causes and factors that directly or indirectly influence the origin of the accident analysed according to the method indicated have been identified and classified, all of them are organised graphically, which allows a quick and simple understanding of the circumstances of the accident.
{"title":"Analysis Of An Accident In The Mining Sector Using The Feyer and Williamson Method","authors":"L. Sanmiquel, M. Bascompta, Nor Sidki, J. Vives, J. Lopez","doi":"10.11159/mmme22.123","DOIUrl":"https://doi.org/10.11159/mmme22.123","url":null,"abstract":"Extended Abstract This research presents the case of the analysis of an accident in an aggregate processing plant through the Feyer & Williamson method [1,2]. This method was designed to allow the coding of a time sequence of up to 3 events that have preceded a given accident. These events are called Preceding Events and are characterised as determining factors for the genesis of the accident. In addition, causal factors can also be identified, which are considered to have influenced the accident but not in such a decisive way as the events. The method makes it possible to identify 4 types of events and 8 types of causal factors, as well as different types of human error that have directly influenced the origin of the accident. Results: Once all the causes and factors that directly or indirectly influence the origin of the accident analysed according to the method indicated have been identified and classified, all of them are organised graphically, which allows a quick and simple understanding of the circumstances of the accident.","PeriodicalId":385356,"journal":{"name":"Proceedings of the 8th World Congress on Mechanical, Chemical, and Material Engineering","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131231678","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}
P. Chokkalingam, Abdulkader Elmir, Hilal El-Hassan, A. El-Dieb
- This paper aims to optimize the mixture proportions of geopolymer concrete prepared using a binary binder system composed of ceramic waste powder (CWP) and ground granulated blast furnace slag (or simply slag) for superior mechanical performance. The corresponding mixtures were proportioned, analyzed, and optimized by adopting the Taguchi approach. The binder content, CWP replacement rate by slag, alkali-activator solution-to-binder (AAS/B) ratio, sodium silicate-to-sodium hydroxide (SS/SH) ratio, and sodium hydroxide solution molarity were assigned as factors in the design phase. Each factor was characterized by four different levels, resulting in the establishment of an L 16 orthogonal array. The target design property was the 28-day cylinder compressive strength. The analysis of variance showed that AAS/B ratio, CWP replacement rate by slag, and SS/SH ratio were key factors affecting the strength in geopolymer concrete, while SH molarity and binder content showed the least contributions. The blended geopolymer made with 40% CWP and 60% slag yielded the optimal compressive strength response with a binder content, AAS/B ratio, SS/SH ratio, and SH solution molarity of 450 kg/m 3 , 0.5, 1.5, and 10 M, respectively.
{"title":"Optimization of CWP-Slag Blended Geopolymer Concrete using Taguchi Method","authors":"P. Chokkalingam, Abdulkader Elmir, Hilal El-Hassan, A. El-Dieb","doi":"10.11159/mmme22.111","DOIUrl":"https://doi.org/10.11159/mmme22.111","url":null,"abstract":"- This paper aims to optimize the mixture proportions of geopolymer concrete prepared using a binary binder system composed of ceramic waste powder (CWP) and ground granulated blast furnace slag (or simply slag) for superior mechanical performance. The corresponding mixtures were proportioned, analyzed, and optimized by adopting the Taguchi approach. The binder content, CWP replacement rate by slag, alkali-activator solution-to-binder (AAS/B) ratio, sodium silicate-to-sodium hydroxide (SS/SH) ratio, and sodium hydroxide solution molarity were assigned as factors in the design phase. Each factor was characterized by four different levels, resulting in the establishment of an L 16 orthogonal array. The target design property was the 28-day cylinder compressive strength. The analysis of variance showed that AAS/B ratio, CWP replacement rate by slag, and SS/SH ratio were key factors affecting the strength in geopolymer concrete, while SH molarity and binder content showed the least contributions. The blended geopolymer made with 40% CWP and 60% slag yielded the optimal compressive strength response with a binder content, AAS/B ratio, SS/SH ratio, and SH solution molarity of 450 kg/m 3 , 0.5, 1.5, and 10 M, respectively.","PeriodicalId":385356,"journal":{"name":"Proceedings of the 8th World Congress on Mechanical, Chemical, and Material Engineering","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114358515","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}
- This article presents the results of the study of water pollution of the Seman River basin, based on physico-chemical parameters. This study was conducted during the period April - June 2019. The selection of sampling stations was done in order to the results of the study provide, a complete information on the level of pollution of these waters and the main causes of this pollution. Water samples were analyzed for temperature, pH, conductivity, total suspended solids (TSS), total alkalinity, total hardness, dissolved oxygen (DO), chemical oxygen demand (COD). All analyzes were performed using standard analytical methods (APHA, DIN, ISO). The results were processed using descriptive statistics method and compared with international water quality standards. The results obtained showed that the values of some parameters were above the allowed or recommended norms. Since the main causes of pollution of these waters are discharges of untreated urban water and those from various economic activities, or discharges of wastewaters, it is recommended: Taking measures to minimize the causes of pollution, such as improving the sewerage network of the area, the provision of a completely special system, serious investments in the treatment of untreated urban waters and those from various economic activities as well as the information of the population on the importance of protecting these waters from pollution and the consequences of these pollutions.
{"title":"Determination of Physico-Chemical Parameters in the Seman\u0000Basin Waters, In the Fieri City","authors":"V. Hoxha, A. Jano, K. Vaso, Enkela Poro","doi":"10.11159/iccpe22.117","DOIUrl":"https://doi.org/10.11159/iccpe22.117","url":null,"abstract":"- This article presents the results of the study of water pollution of the Seman River basin, based on physico-chemical parameters. This study was conducted during the period April - June 2019. The selection of sampling stations was done in order to the results of the study provide, a complete information on the level of pollution of these waters and the main causes of this pollution. Water samples were analyzed for temperature, pH, conductivity, total suspended solids (TSS), total alkalinity, total hardness, dissolved oxygen (DO), chemical oxygen demand (COD). All analyzes were performed using standard analytical methods (APHA, DIN, ISO). The results were processed using descriptive statistics method and compared with international water quality standards. The results obtained showed that the values of some parameters were above the allowed or recommended norms. Since the main causes of pollution of these waters are discharges of untreated urban water and those from various economic activities, or discharges of wastewaters, it is recommended: Taking measures to minimize the causes of pollution, such as improving the sewerage network of the area, the provision of a completely special system, serious investments in the treatment of untreated urban waters and those from various economic activities as well as the information of the population on the importance of protecting these waters from pollution and the consequences of these pollutions.","PeriodicalId":385356,"journal":{"name":"Proceedings of the 8th World Congress on Mechanical, Chemical, and Material Engineering","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130573977","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}
– A novel approach to model sensible Thermal Energy Storage (TES) Systems has been developed. Three separate models are used to model the overall system. High-resolution isothermal models are used to simulate the flow around the inlet and outlet diffusers. Velocity data is then used to provide accurate boundary conditions for a simplified non-isothermal model to model the temperature distribution and flow in the main body of the TES. In this short paper, a laminar model is compared with 2 turbulent models and measurement data. Analysis shows the need for further work as the thermocline width increases much faster in all numerical models than seen in the measurement data.
{"title":"Modeling a Large Thermal Energy Storage System Using RANS Turbulence Models and High-Resolution Measurement Data","authors":"B. Krüger, F. Dammel, P. Stephan","doi":"10.11159/htff22.157","DOIUrl":"https://doi.org/10.11159/htff22.157","url":null,"abstract":"– A novel approach to model sensible Thermal Energy Storage (TES) Systems has been developed. Three separate models are used to model the overall system. High-resolution isothermal models are used to simulate the flow around the inlet and outlet diffusers. Velocity data is then used to provide accurate boundary conditions for a simplified non-isothermal model to model the temperature distribution and flow in the main body of the TES. In this short paper, a laminar model is compared with 2 turbulent models and measurement data. Analysis shows the need for further work as the thermocline width increases much faster in all numerical models than seen in the measurement data.","PeriodicalId":385356,"journal":{"name":"Proceedings of the 8th World Congress on Mechanical, Chemical, and Material Engineering","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133052908","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}
Teerapat Thungthong, Kanet Katchasuwanmanee, Jirachai Mingbunjerdsuk, W. Chaiworapuek, K. Khaothong
In this paper, heat transfer characteristics of laminar pipe flow using low frequency ultrasound released along the mainstream direction were investigated experimentally. The test section was a square duct with an inner cross-sectional area of 60 mm2 and a length of 1500 mm. The Reynolds number ranged between 400 and 1,600. A heater with a power of 400 W was installed at the bottom wall to heat the water at 23 °C. Thermocouples were used to measure the wall temperature at a distance of 0.16-0.58 m with an interval of 0.07 m. The ultrasonic transducer with a frequency of 28-80 kHz was set at the entrance to release the waves in a streamwise direction. In addition, the flow behaviour of the water flow induced by ultrasound was illustrated by Particle Image Velocimetry (PIV). The results showed that the heat transfer enhancement factor (HTEF) was increased when the heating wall was close to the ultrasonic transducer position. In particular, acoustic streaming was found to convect the heat transfer by swerving from the entrance to the heating wall. The maximum HTEF of 163.04% was achieved using 28 kHz ultrasonic waves at Reynold number of 400. These results would clearly demonstrate the potential of ultrasonic waves to improve heat transfer in a thermal system in the future.
{"title":"Heat Transfer and Velocity Measurement of Laminar Pipe Flow Induced by Ultrasound Released along Mainstream Direction","authors":"Teerapat Thungthong, Kanet Katchasuwanmanee, Jirachai Mingbunjerdsuk, W. Chaiworapuek, K. Khaothong","doi":"10.11159/htff22.163","DOIUrl":"https://doi.org/10.11159/htff22.163","url":null,"abstract":"In this paper, heat transfer characteristics of laminar pipe flow using low frequency ultrasound released along the mainstream direction were investigated experimentally. The test section was a square duct with an inner cross-sectional area of 60 mm2 and a length of 1500 mm. The Reynolds number ranged between 400 and 1,600. A heater with a power of 400 W was installed at the bottom wall to heat the water at 23 °C. Thermocouples were used to measure the wall temperature at a distance of 0.16-0.58 m with an interval of 0.07 m. The ultrasonic transducer with a frequency of 28-80 kHz was set at the entrance to release the waves in a streamwise direction. In addition, the flow behaviour of the water flow induced by ultrasound was illustrated by Particle Image Velocimetry (PIV). The results showed that the heat transfer enhancement factor (HTEF) was increased when the heating wall was close to the ultrasonic transducer position. In particular, acoustic streaming was found to convect the heat transfer by swerving from the entrance to the heating wall. The maximum HTEF of 163.04% was achieved using 28 kHz ultrasonic waves at Reynold number of 400. These results would clearly demonstrate the potential of ultrasonic waves to improve heat transfer in a thermal system in the future.","PeriodicalId":385356,"journal":{"name":"Proceedings of the 8th World Congress on Mechanical, Chemical, and Material Engineering","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"120957334","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}
Omid Sam-Daliri, T. Flanagan, P. Ghabezi, W. Finnegan, Sinéad Mitchell, N. Harrison
Extended Abstract The use of fibre-reinforced polymer composites has increased in recent years across various industries, such as aircraft, energy, sports, infrastructure, medical, defence, electronics, and automobile industries [1]. In particular, carbon fibre reinforced polymers (CFRP) and glass fibre reinforced polymers (GFRP) [1, 2] regularly demonstrate favourable strength-to-weight ratios at multiple size scales. Until recently, these materials have been readily adopted without complete consideration of the environmental impacts of the entire life cycle of the product- from raw material extraction, production, use and end-of-life outcome. In addition, composite waste occurs during production processes. Thus, finding efficient, commercially viable and effective reuse, remanufacturing and recycling routes is now of crucial importance to ensure sustainable continued use of composites. In addition, it is imperative that every effort be made to reduce the amount of waste material that is either
{"title":"Recovery of Particle Reinforced Composite 3D Printing Filament from Recycled Industrial Polypropylene and Glass Fibre Waste","authors":"Omid Sam-Daliri, T. Flanagan, P. Ghabezi, W. Finnegan, Sinéad Mitchell, N. Harrison","doi":"10.11159/icmie22.143","DOIUrl":"https://doi.org/10.11159/icmie22.143","url":null,"abstract":"Extended Abstract The use of fibre-reinforced polymer composites has increased in recent years across various industries, such as aircraft, energy, sports, infrastructure, medical, defence, electronics, and automobile industries [1]. In particular, carbon fibre reinforced polymers (CFRP) and glass fibre reinforced polymers (GFRP) [1, 2] regularly demonstrate favourable strength-to-weight ratios at multiple size scales. Until recently, these materials have been readily adopted without complete consideration of the environmental impacts of the entire life cycle of the product- from raw material extraction, production, use and end-of-life outcome. In addition, composite waste occurs during production processes. Thus, finding efficient, commercially viable and effective reuse, remanufacturing and recycling routes is now of crucial importance to ensure sustainable continued use of composites. In addition, it is imperative that every effort be made to reduce the amount of waste material that is either","PeriodicalId":385356,"journal":{"name":"Proceedings of the 8th World Congress on Mechanical, Chemical, and Material Engineering","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116430916","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":"Conjugated Phonon and Hot Carrier Transport in 2D Materials","authors":"Xinwei Wang","doi":"10.11159/htff22.001","DOIUrl":"https://doi.org/10.11159/htff22.001","url":null,"abstract":"","PeriodicalId":385356,"journal":{"name":"Proceedings of the 8th World Congress on Mechanical, Chemical, and Material Engineering","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127719838","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}
Extended Abstract The current study aims to simulate the complex oscillation of a long flexible cylinder. This fluid-structure interaction problem is important in ocean engineering, civil engineering and so on. For instance, a riser in ocean has to interact with the current. Another example is a cable of a bridge, which vibrates due to coming wind. An in-house numerical model was developed using pseudopsectral methods [1] coupled with the direct-forcing immersed boundary (DFIB) method [2] to investigate this phenomenon. The model was validated first by simulations of flow through a fixed cylinder in a free stream. Drag coefficients obtained by the proposed model and other publications were compared and good agreement was found. The preciseness and convergence analysis are presented in the validation section. A solid body can be identified more precisely using the adopted PSME-DFIB model. The proposed numerical model was used to simulate the flow-induced vibration of an elastically mounted rigid cylinder. The variation of vibration frequency and maximum amplitude with respect to Reynolds number and reduced velocity was investigated in the lock-in region and compared against published literature. When solids move through grids, the coordinate transformation can eliminate noise in the resultant force, as determined by the numerical integral. In addition, the in-house PSME-DFIB model was used to investigate the flow-induced vibration of an infinitely long flexible cylinder at various wavelengths, cylinder tensions at low Reynolds numbers. A short-wavelength cylinder was considered due to the feasibility of simulations. The effects of cylinder vibration on the flow patterns were also explored in detail. Given the initial displacement, the cylinder vibration was produced a stable standing wave response in the early stage, and gradually turned into
{"title":"Pseudospectral Modelling For Flow past a Long Flexible Cylinder","authors":"M. Chern, Jhe-Ming Lin","doi":"10.11159/htff22.179","DOIUrl":"https://doi.org/10.11159/htff22.179","url":null,"abstract":"Extended Abstract The current study aims to simulate the complex oscillation of a long flexible cylinder. This fluid-structure interaction problem is important in ocean engineering, civil engineering and so on. For instance, a riser in ocean has to interact with the current. Another example is a cable of a bridge, which vibrates due to coming wind. An in-house numerical model was developed using pseudopsectral methods [1] coupled with the direct-forcing immersed boundary (DFIB) method [2] to investigate this phenomenon. The model was validated first by simulations of flow through a fixed cylinder in a free stream. Drag coefficients obtained by the proposed model and other publications were compared and good agreement was found. The preciseness and convergence analysis are presented in the validation section. A solid body can be identified more precisely using the adopted PSME-DFIB model. The proposed numerical model was used to simulate the flow-induced vibration of an elastically mounted rigid cylinder. The variation of vibration frequency and maximum amplitude with respect to Reynolds number and reduced velocity was investigated in the lock-in region and compared against published literature. When solids move through grids, the coordinate transformation can eliminate noise in the resultant force, as determined by the numerical integral. In addition, the in-house PSME-DFIB model was used to investigate the flow-induced vibration of an infinitely long flexible cylinder at various wavelengths, cylinder tensions at low Reynolds numbers. A short-wavelength cylinder was considered due to the feasibility of simulations. The effects of cylinder vibration on the flow patterns were also explored in detail. Given the initial displacement, the cylinder vibration was produced a stable standing wave response in the early stage, and gradually turned into","PeriodicalId":385356,"journal":{"name":"Proceedings of the 8th World Congress on Mechanical, Chemical, and Material Engineering","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132522956","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}
A numerical investigation of the heat transfer enhancement through fins using the Ansys Mechanical solver is presented. Results are given for a uniform fin with elliptical cross-sections and uniform heat flux applied on its base while heat is dissipated to its surroundings by convection from both its lateral surface and tip. The peak temperature at the base of the fin is used to evaluate the thermal performance. Ansys Mechanical solver is automated using Python scripting to run 792 simulations for various materials, fin lengths, and ratios between the minor and major axes of the elliptical cross-sectional shape for both cases of natural and forced convection. The use of the original automated numerical procedure significantly decreases the computational time and the user intervention. It was found that the thermal performance is improved by increasing the length of the fin, using a material with higher thermal conductivity, or having a ratio between the minor and major axes of the ellipse that is farther from unity. Forced convection gives better thermal performance compared to natural convection.
{"title":"Ansys Mechanical Automation using Python for the Steady State Thermal Analysis of Fins","authors":"M. Shaimi, R. Khatyr, J. Naciri","doi":"10.11159/htff22.178","DOIUrl":"https://doi.org/10.11159/htff22.178","url":null,"abstract":"A numerical investigation of the heat transfer enhancement through fins using the Ansys Mechanical solver is presented. Results are given for a uniform fin with elliptical cross-sections and uniform heat flux applied on its base while heat is dissipated to its surroundings by convection from both its lateral surface and tip. The peak temperature at the base of the fin is used to evaluate the thermal performance. Ansys Mechanical solver is automated using Python scripting to run 792 simulations for various materials, fin lengths, and ratios between the minor and major axes of the elliptical cross-sectional shape for both cases of natural and forced convection. The use of the original automated numerical procedure significantly decreases the computational time and the user intervention. It was found that the thermal performance is improved by increasing the length of the fin, using a material with higher thermal conductivity, or having a ratio between the minor and major axes of the ellipse that is farther from unity. Forced convection gives better thermal performance compared to natural convection.","PeriodicalId":385356,"journal":{"name":"Proceedings of the 8th World Congress on Mechanical, Chemical, and Material Engineering","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123382222","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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