Pub Date : 2023-05-26DOI: 10.1109/ICMIMT59138.2023.10199283
I. Daniyan, R. Muvunzi, F. Fameso, K. Mpofu, Felix Ale
Pumps find many industrial applications in converting electrical to mechanical energy necessary for fluid transfer. In this study, numerical analysis of the pump impeller produced via the Fused Deposition Modelling (FDM) was carried out in the complete ABAQUS environment (CAE/2020). This led to the determination of the stress, strain and deformation distribution induced on the modelled impeller under the operating conditions using the von Mises failure criterion. For the purpose of this study, the static general and steady state heat transfer steps were employed sequentially. The impeller’s model as casted in the FDM process was designed as a single solid homogenous part with no nodal separations or assembly constraints between the base of the impeller and its blades. Using a mesh interval of 0.5 mm, it was observed that the computational time decreases with an increase in the mesh size up to 5.0 mm. The results obtained showed that blade thicknesses less than 5 mm are more susceptibility to failure. In addition, extreme operating speeds up to 1000 rad/s and pressures of 0.22 MPa are not suitable conditions for high operational efficiency and structural integrity of the impeller. The findings of this work provides an insight into the design of pump impeller using the FDM with improved design accuracy and cycle time.
{"title":"Computer Aided Modelling and Investigation of the Performance of a Pump Impeller Produced using Fused Deposition Modelling","authors":"I. Daniyan, R. Muvunzi, F. Fameso, K. Mpofu, Felix Ale","doi":"10.1109/ICMIMT59138.2023.10199283","DOIUrl":"https://doi.org/10.1109/ICMIMT59138.2023.10199283","url":null,"abstract":"Pumps find many industrial applications in converting electrical to mechanical energy necessary for fluid transfer. In this study, numerical analysis of the pump impeller produced via the Fused Deposition Modelling (FDM) was carried out in the complete ABAQUS environment (CAE/2020). This led to the determination of the stress, strain and deformation distribution induced on the modelled impeller under the operating conditions using the von Mises failure criterion. For the purpose of this study, the static general and steady state heat transfer steps were employed sequentially. The impeller’s model as casted in the FDM process was designed as a single solid homogenous part with no nodal separations or assembly constraints between the base of the impeller and its blades. Using a mesh interval of 0.5 mm, it was observed that the computational time decreases with an increase in the mesh size up to 5.0 mm. The results obtained showed that blade thicknesses less than 5 mm are more susceptibility to failure. In addition, extreme operating speeds up to 1000 rad/s and pressures of 0.22 MPa are not suitable conditions for high operational efficiency and structural integrity of the impeller. The findings of this work provides an insight into the design of pump impeller using the FDM with improved design accuracy and cycle time.","PeriodicalId":286146,"journal":{"name":"2023 14th International Conference on Mechanical and Intelligent Manufacturing Technologies (ICMIMT)","volume":"31 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-05-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130019766","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 : 2023-05-26DOI: 10.1109/ICMIMT59138.2023.10199617
Guangku Xue, Yulong Lan, Chun Liu, Xuemeng Xia, Zhongping Huang, Yu Long, Yun Zhang, Zhiwen Kang
The swing shaft of five-axis CNC machine tool is usually used for fixed angle machining of products. The reliability of the position state of the swing shaft directly affects the quality of product processing. In this paper, aiming at the problem that the servo position changes in the abnormal condition during the fixed swing Angle machining of the B axis of a five-axis CNC machine tool affect the machining quality of the product, a set of methods and devices to solve the above problems are proposed and designed from the aspects of mechanical, electrical and hydraulic system analysis, and realize the maintenance of the angle position of the product under the abnormal state of the fixed swing angle machining of the machine tool. So that, the product processing quality is guaranteed.
{"title":"Research on Position Keeping Technology of FIVE-axis CNC Machine Tool under Abnormal State in Fixed Angle Machining of Swing Shaft","authors":"Guangku Xue, Yulong Lan, Chun Liu, Xuemeng Xia, Zhongping Huang, Yu Long, Yun Zhang, Zhiwen Kang","doi":"10.1109/ICMIMT59138.2023.10199617","DOIUrl":"https://doi.org/10.1109/ICMIMT59138.2023.10199617","url":null,"abstract":"The swing shaft of five-axis CNC machine tool is usually used for fixed angle machining of products. The reliability of the position state of the swing shaft directly affects the quality of product processing. In this paper, aiming at the problem that the servo position changes in the abnormal condition during the fixed swing Angle machining of the B axis of a five-axis CNC machine tool affect the machining quality of the product, a set of methods and devices to solve the above problems are proposed and designed from the aspects of mechanical, electrical and hydraulic system analysis, and realize the maintenance of the angle position of the product under the abnormal state of the fixed swing angle machining of the machine tool. So that, the product processing quality is guaranteed.","PeriodicalId":286146,"journal":{"name":"2023 14th International Conference on Mechanical and Intelligent Manufacturing Technologies (ICMIMT)","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-05-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130743267","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 : 2023-05-26DOI: 10.1109/ICMIMT59138.2023.10200614
C-F. Hage, T. Sophy, E. Aglzim
Quadcopters are a type of drone with four rotors that are used for a variety of purposes, such as freight transportation, military surveillance, and aerial photography. However, when operating around obstacles and in the proximity of walls or moving objects, the aerial vehicle can be subject to external forces that can cause severe flight instability. To address this issue, a methodology based on multiple reference frame (MRF) tetrahedral meshes is developed in this paper and applied to computational simulations to study the downwash flow generated by a quadcopter propeller over fixed and moving obstacles. The effects of different rotational speeds and moving obstacle proximity are assessed and compared to experimental data and theoretical models. The results show that the presence of fixed and moving obstacles can have a significant impact on the aerodynamic performance of the propeller, leading to changes in lift force and the formation of turbulent vortices and flow separation zones. When hovering at 3000, 5000, and 9550 rpm, the results showed an increase in the lift force on the propeller by 9.3%, and 1.03% compared to open rotor thrust due to the presence of a fixed obstacle (wall) placed at 0.1 m and 0.2 m from the propeller respectively. However, when hovering (3000 rpm) at 0.2 m above a moving obstacle (5 m/s, and 10 m/s) the results have shown an increase in the lift by 1.92% for 5 m/s moving obstacle, and then a decrease by 4.4% for 10 m/s, comparing to fixed obstacle thrust. Finally, these findings could be useful for improving the stability and performance of quadcopters in real-world environments.
{"title":"CFD Analyses of the Aerodynamic Effects on a Quadcopter Propeller in the Proximity of Fixed and Horizontal Moving Obstacles","authors":"C-F. Hage, T. Sophy, E. Aglzim","doi":"10.1109/ICMIMT59138.2023.10200614","DOIUrl":"https://doi.org/10.1109/ICMIMT59138.2023.10200614","url":null,"abstract":"Quadcopters are a type of drone with four rotors that are used for a variety of purposes, such as freight transportation, military surveillance, and aerial photography. However, when operating around obstacles and in the proximity of walls or moving objects, the aerial vehicle can be subject to external forces that can cause severe flight instability. To address this issue, a methodology based on multiple reference frame (MRF) tetrahedral meshes is developed in this paper and applied to computational simulations to study the downwash flow generated by a quadcopter propeller over fixed and moving obstacles. The effects of different rotational speeds and moving obstacle proximity are assessed and compared to experimental data and theoretical models. The results show that the presence of fixed and moving obstacles can have a significant impact on the aerodynamic performance of the propeller, leading to changes in lift force and the formation of turbulent vortices and flow separation zones. When hovering at 3000, 5000, and 9550 rpm, the results showed an increase in the lift force on the propeller by 9.3%, and 1.03% compared to open rotor thrust due to the presence of a fixed obstacle (wall) placed at 0.1 m and 0.2 m from the propeller respectively. However, when hovering (3000 rpm) at 0.2 m above a moving obstacle (5 m/s, and 10 m/s) the results have shown an increase in the lift by 1.92% for 5 m/s moving obstacle, and then a decrease by 4.4% for 10 m/s, comparing to fixed obstacle thrust. Finally, these findings could be useful for improving the stability and performance of quadcopters in real-world environments.","PeriodicalId":286146,"journal":{"name":"2023 14th International Conference on Mechanical and Intelligent Manufacturing Technologies (ICMIMT)","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-05-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128371598","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 : 2023-05-26DOI: 10.1109/ICMIMT59138.2023.10199288
Ronaldo R. De Paz, Gabriel P. Famadico, Allysa Mariel J. Ortiz, Raymund Carlo F. Tanap, R. Tayactac, E. B. Ang, Ricky D. Umali, J. Honra
The study focuses on analyzing the industrial applications done by international companies using Flux Cored Arc Welding, considering the factors of welding quality, productivity, economy, practices, problem and solutions. With the aim to determine the techniques done by companies around the world to prevent complications experienced upon welding, the researchers surveyed 43 international companies from different regions of the world. The responses are presented into pie charts and bar graphs that were interpreted into a qualitative analysis. Inferential statistics, specifically one-way Analysis by of Variance (ANOVA) and one-sample T Test in hypothesis testing with the means of statistical software Minitab and IBM SPSS Statistics respectively, are conducted to distinguish the influence of variables to the key words of the study. The significance level of most of the test variable in one-way ANOVA were greater than the 95% confidence interval, confirming the similarity of results given by the companies. FCAW is still one of the most used welding methods by the industrial companies internationally due to its ease of use. Welding problems are encountered despite of this and having welders training. Additionally, the researchers obtained sample mean of competitiveness in terms of product quality and performance level, having 4.6 for domestic and 4.33 for international (5 being the highest level). With the test value of 4.46, it showed no significant differences between domestic and international, meaning that the industrial companies believe that their product quality and performance level are at a proficient competency in domestic and international market.
{"title":"Analysis on the Industrial Applications of Flux Cored Arc Welding on an International Scale","authors":"Ronaldo R. De Paz, Gabriel P. Famadico, Allysa Mariel J. Ortiz, Raymund Carlo F. Tanap, R. Tayactac, E. B. Ang, Ricky D. Umali, J. Honra","doi":"10.1109/ICMIMT59138.2023.10199288","DOIUrl":"https://doi.org/10.1109/ICMIMT59138.2023.10199288","url":null,"abstract":"The study focuses on analyzing the industrial applications done by international companies using Flux Cored Arc Welding, considering the factors of welding quality, productivity, economy, practices, problem and solutions. With the aim to determine the techniques done by companies around the world to prevent complications experienced upon welding, the researchers surveyed 43 international companies from different regions of the world. The responses are presented into pie charts and bar graphs that were interpreted into a qualitative analysis. Inferential statistics, specifically one-way Analysis by of Variance (ANOVA) and one-sample T Test in hypothesis testing with the means of statistical software Minitab and IBM SPSS Statistics respectively, are conducted to distinguish the influence of variables to the key words of the study. The significance level of most of the test variable in one-way ANOVA were greater than the 95% confidence interval, confirming the similarity of results given by the companies. FCAW is still one of the most used welding methods by the industrial companies internationally due to its ease of use. Welding problems are encountered despite of this and having welders training. Additionally, the researchers obtained sample mean of competitiveness in terms of product quality and performance level, having 4.6 for domestic and 4.33 for international (5 being the highest level). With the test value of 4.46, it showed no significant differences between domestic and international, meaning that the industrial companies believe that their product quality and performance level are at a proficient competency in domestic and international market.","PeriodicalId":286146,"journal":{"name":"2023 14th International Conference on Mechanical and Intelligent Manufacturing Technologies (ICMIMT)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-05-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114510113","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 : 2023-05-26DOI: 10.1109/ICMIMT59138.2023.10200877
Krystal Ysavel P. Almeria, Marlo Joseph D. Comadre, Sandy M. Uy, M. Margarito, J. Celorico
The surge of the COVID-19 pandemic paved the way for medical experts, professionals, and innovators to increasingly develop healthcare technologies. This study investigated the preliminary performance of a novel face shield-based design acting as a personalized ventilation system equipped with an air curtain through computational fluid dynamics (CFD). This research aims to determine the effectiveness of the device, specifically, when another person coughed or sneezed in proximity. A surgical mask was used as a porous medium to show resistance during the filtration when fans are working. Results showed that the aerodynamics of the device will depend on the axial fans’ specifications since this will generate the air curtain for the user. Given its novelty, optimizing the design would help improve the simulation results.
{"title":"Performance Investigation of Air Mask: A Novel Personalized Ventilation Device Using CFD Simulation against Virus-Laden Aerosols","authors":"Krystal Ysavel P. Almeria, Marlo Joseph D. Comadre, Sandy M. Uy, M. Margarito, J. Celorico","doi":"10.1109/ICMIMT59138.2023.10200877","DOIUrl":"https://doi.org/10.1109/ICMIMT59138.2023.10200877","url":null,"abstract":"The surge of the COVID-19 pandemic paved the way for medical experts, professionals, and innovators to increasingly develop healthcare technologies. This study investigated the preliminary performance of a novel face shield-based design acting as a personalized ventilation system equipped with an air curtain through computational fluid dynamics (CFD). This research aims to determine the effectiveness of the device, specifically, when another person coughed or sneezed in proximity. A surgical mask was used as a porous medium to show resistance during the filtration when fans are working. Results showed that the aerodynamics of the device will depend on the axial fans’ specifications since this will generate the air curtain for the user. Given its novelty, optimizing the design would help improve the simulation results.","PeriodicalId":286146,"journal":{"name":"2023 14th International Conference on Mechanical and Intelligent Manufacturing Technologies (ICMIMT)","volume":"25 3","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-05-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"120866462","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 : 2023-05-26DOI: 10.1109/ICMIMT59138.2023.10199334
Yujia Shan, Zhaobo K. Zheng
Due to the rapid growth of the global population and limited water resources, water shortages have become an urgent problem for our society. Over 71% of freshwater withdrawals in the world are for irrigation purposes. Thus, more accurate and robust soil moisture modeling is needed to create more efficient irrigation systems, which, in turn, may lead to substantial water savings. However, existing soil moisture modeling methodologies have limited accuracy and low temporal resolution. In this study, the accuracy of using a machine learning model for high temporal resolution soil moisture modeling is demonstrated. A multimodal sensing system is designed and implemented to create a high temporal resolution dataset in the water-scarce region of South Africa. This data is then used to evaluate the accuracy of different algorithms for soil moisture modeling, where the Random Forest regressor shows promising results.
{"title":"Machine Learning Regression to Predict Soil Moisture in Domestic Garden Environments","authors":"Yujia Shan, Zhaobo K. Zheng","doi":"10.1109/ICMIMT59138.2023.10199334","DOIUrl":"https://doi.org/10.1109/ICMIMT59138.2023.10199334","url":null,"abstract":"Due to the rapid growth of the global population and limited water resources, water shortages have become an urgent problem for our society. Over 71% of freshwater withdrawals in the world are for irrigation purposes. Thus, more accurate and robust soil moisture modeling is needed to create more efficient irrigation systems, which, in turn, may lead to substantial water savings. However, existing soil moisture modeling methodologies have limited accuracy and low temporal resolution. In this study, the accuracy of using a machine learning model for high temporal resolution soil moisture modeling is demonstrated. A multimodal sensing system is designed and implemented to create a high temporal resolution dataset in the water-scarce region of South Africa. This data is then used to evaluate the accuracy of different algorithms for soil moisture modeling, where the Random Forest regressor shows promising results.","PeriodicalId":286146,"journal":{"name":"2023 14th International Conference on Mechanical and Intelligent Manufacturing Technologies (ICMIMT)","volume":"41 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-05-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127422443","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}
With the rapid development of artificial intelligence, virtual reality, blockchain and other technologies, the Metaverse technology has become the next development direction of the digital world. This paper first introduces the basic concepts and technical architecture of Metaverse technology, including blockchain technology, human-computer interaction, electronic games, artificial intelligence, network and computing, and digital twins. Then, the author expounds the application of meta-space technology in the US military field and analyzes the application prospect of meta-space technology by analyzing the combat mode and requirements of the US military.
{"title":"Research on the Application of Metaverse Technology in the US Army","authors":"Chenggong Zhai, Biao Dong, Hongsi Xu, Xingguang Yuan, Liyong Zhou, Weipei Song","doi":"10.1109/ICMIMT59138.2023.10199364","DOIUrl":"https://doi.org/10.1109/ICMIMT59138.2023.10199364","url":null,"abstract":"With the rapid development of artificial intelligence, virtual reality, blockchain and other technologies, the Metaverse technology has become the next development direction of the digital world. This paper first introduces the basic concepts and technical architecture of Metaverse technology, including blockchain technology, human-computer interaction, electronic games, artificial intelligence, network and computing, and digital twins. Then, the author expounds the application of meta-space technology in the US military field and analyzes the application prospect of meta-space technology by analyzing the combat mode and requirements of the US military.","PeriodicalId":286146,"journal":{"name":"2023 14th International Conference on Mechanical and Intelligent Manufacturing Technologies (ICMIMT)","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-05-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115402948","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 : 2023-05-26DOI: 10.1109/ICMIMT59138.2023.10201224
Cheng Lin, Jianrun Zhang, Liangquan Xu, Hao Peng
Heavy duty gearbox’s operating characteristic frequency is low. At present, various methods used to monitor the operation condition and analyze faults have their own traits and shortcomings. To realize the heavy duty gearbox’s operation condition monitoring and fault analysis, acoustic digital twin technology was proposed. Using noncontact far field acoustic signals, the operation condition can be monitored and faults can be analyzed. This new technology was characterized by locating and analyzing faults accurately. To improve the accuracy of the digital twin model, the contact stiffness model of the joint surface was further deduced. Finally, the frequency responses of sound pressure under different faults were compared and analyzed. It was shown that the proposed acoustic digital twin technology can be used to monitor the heavy-duty gearbox’s operation condition and analyze faults. Also, the results showed that this technology was feasible and accurate.
{"title":"Application of Acoustic Digital Twin Model for Fault Monitoring of Heavy Duty Gearbox","authors":"Cheng Lin, Jianrun Zhang, Liangquan Xu, Hao Peng","doi":"10.1109/ICMIMT59138.2023.10201224","DOIUrl":"https://doi.org/10.1109/ICMIMT59138.2023.10201224","url":null,"abstract":"Heavy duty gearbox’s operating characteristic frequency is low. At present, various methods used to monitor the operation condition and analyze faults have their own traits and shortcomings. To realize the heavy duty gearbox’s operation condition monitoring and fault analysis, acoustic digital twin technology was proposed. Using noncontact far field acoustic signals, the operation condition can be monitored and faults can be analyzed. This new technology was characterized by locating and analyzing faults accurately. To improve the accuracy of the digital twin model, the contact stiffness model of the joint surface was further deduced. Finally, the frequency responses of sound pressure under different faults were compared and analyzed. It was shown that the proposed acoustic digital twin technology can be used to monitor the heavy-duty gearbox’s operation condition and analyze faults. Also, the results showed that this technology was feasible and accurate.","PeriodicalId":286146,"journal":{"name":"2023 14th International Conference on Mechanical and Intelligent Manufacturing Technologies (ICMIMT)","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-05-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125313248","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 : 2023-05-26DOI: 10.1109/ICMIMT59138.2023.10199998
Accordance Ntimane, L. Tartibu
In energy-intensive process industries, heat exchangers are frequently employed to increase the heat transfer coefficient and transfer heat between fluids without mixing or blending them. In thermo-acoustic systems, the main goal is to heat up and cool down heat exchangers positioned across the regenerator or the stack to reach a suitable onset temperature and generate a sound wave in a thermo-acoustic engine. Because of the impact of heat exchangers on the performance of thermo-acoustic systems, a more systematic investigation into the impact of its geometrical configuration would be insightful. A numerical model of a travelling-wave thermo-acoustic engine was developed and implemented within the software DELTAEC. Various simulations were performed. This result shows that the performance of a travelling-wave thermo-acoustic engine would improve by considering a relatively shorter cold heat exchanger having larger pores. A relatively longer hot heat exchanger having larger pores could enhance the performance of a thermo-acoustic engine.
{"title":"Impact of Heat Exchanger Length and Porosity in a Travelling-Wave Thermo-Acoustic Engine","authors":"Accordance Ntimane, L. Tartibu","doi":"10.1109/ICMIMT59138.2023.10199998","DOIUrl":"https://doi.org/10.1109/ICMIMT59138.2023.10199998","url":null,"abstract":"In energy-intensive process industries, heat exchangers are frequently employed to increase the heat transfer coefficient and transfer heat between fluids without mixing or blending them. In thermo-acoustic systems, the main goal is to heat up and cool down heat exchangers positioned across the regenerator or the stack to reach a suitable onset temperature and generate a sound wave in a thermo-acoustic engine. Because of the impact of heat exchangers on the performance of thermo-acoustic systems, a more systematic investigation into the impact of its geometrical configuration would be insightful. A numerical model of a travelling-wave thermo-acoustic engine was developed and implemented within the software DELTAEC. Various simulations were performed. This result shows that the performance of a travelling-wave thermo-acoustic engine would improve by considering a relatively shorter cold heat exchanger having larger pores. A relatively longer hot heat exchanger having larger pores could enhance the performance of a thermo-acoustic engine.","PeriodicalId":286146,"journal":{"name":"2023 14th International Conference on Mechanical and Intelligent Manufacturing Technologies (ICMIMT)","volume":"49 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-05-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116426250","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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