THE 4TH BIOMEDICAL ENGINEERING’S RECENT PROGRESS IN BIOMATERIALS, DRUGS DEVELOPMENT, HEALTH, AND MEDICAL DEVICES: Proceedings of the International Symposium of Biomedical Engineering (ISBE) 2019最新文献

{"title":"Evaluation on requirements of nuclear medicine facility building","authors":"Anita Nur Mayani, Basari","doi":"10.1063/1.5135558","DOIUrl":"https://doi.org/10.1063/1.5135558","url":null,"abstract":"Nuclear medicine is one of medical fields that uses ionizing radiation sources for therapeutic and diagnostic imaging for cancer. The number of nuclear medicine services in Indonesia is 17 hospitals, which only 10 is active in conducting nuclear medicine services because it doesn’t meet the requirements. Regulations about the standards of nuclear medicine services Indonesia are regulated by KMK number 008/MENKES/SK/I/2009 but it have not yet been discussed the requirements in details for building design and layout design as reference. For this reason, the author did study about the requirements of a nuclear medical service facility referring to KMK number 008/MENKES/SK/I/2009 and the International Health Facility Guidelines to create layout design of nuclear medicine facility. This study is done by comparing national and international regulation for planning criteria and construct layout design of nuclear medicine facility as recommendation to accomplish the regulations in Ministry of Health decree, Republic of Indonesia number 008/MENKES/SK/I/2009 regarding nuclear medical requirements.Nuclear medicine is one of medical fields that uses ionizing radiation sources for therapeutic and diagnostic imaging for cancer. The number of nuclear medicine services in Indonesia is 17 hospitals, which only 10 is active in conducting nuclear medicine services because it doesn’t meet the requirements. Regulations about the standards of nuclear medicine services Indonesia are regulated by KMK number 008/MENKES/SK/I/2009 but it have not yet been discussed the requirements in details for building design and layout design as reference. For this reason, the author did study about the requirements of a nuclear medical service facility referring to KMK number 008/MENKES/SK/I/2009 and the International Health Facility Guidelines to create layout design of nuclear medicine facility. This study is done by comparing national and international regulation for planning criteria and construct layout design of nuclear medicine facility as recommendation to accomplish the regulations in Ministry of Health decree, Repub...","PeriodicalId":22239,"journal":{"name":"THE 4TH BIOMEDICAL ENGINEERING’S RECENT PROGRESS IN BIOMATERIALS, DRUGS DEVELOPMENT, HEALTH, AND MEDICAL DEVICES: Proceedings of the International Symposium of Biomedical Engineering (ISBE) 2019","volume":"109 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-12-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80785149","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":"Effect of increasing reaction temperature on quality of VCO and microalgae Spirulina platensis-based anti-bacterial soap","authors":"Desya Pramadhanti, Dianursanti","doi":"10.1063/1.5139329","DOIUrl":"https://doi.org/10.1063/1.5139329","url":null,"abstract":"Antibacterial soap is the most popular soap in Indonesia as a cleaning agent. Unfortunately, antibacterial soap has some issues, such as the antibacterial ingredients used, and the soap form itself. Most of antibacterial ingredients used has been banned by the United States Food and Drug Administration (FDA) bacteria resistant to antibiotics. Therefore, we need safe antibacterial ingredients for both long and short term use. Microalgae Spirulina platensis is one of microalgae that contains safe antibacterial compound, such as phycocyanin. In addition, these types of microalgae have other compounds that are very beneficial for skin. This research aims to obtain the optimal saponification reaction temperature of VCO and microalgae Spirulina platensis based antibacterial soap. The alkaline used to make this soap was NaOH 6.25 M. The variation of reaction temperature used is 50, 60, and 70°C. Free alkali/free fatty acid content in soap was obtained by titrating soap solution using KOH or HCl depends on the characteristic of soap. Water content was obtained by gravimetric method. Meanwhile antibacterial activity was done in Jasa Pengujian dan Penelitian (QLab). Based on quality, soap that made of 70°C is the best sample with 13.09% (wt/wt) of water, 0.08% (wt/wt) of free alkali and minimum inhibitory value 0 or no bacteria growth until 25% of dilution.Antibacterial soap is the most popular soap in Indonesia as a cleaning agent. Unfortunately, antibacterial soap has some issues, such as the antibacterial ingredients used, and the soap form itself. Most of antibacterial ingredients used has been banned by the United States Food and Drug Administration (FDA) bacteria resistant to antibiotics. Therefore, we need safe antibacterial ingredients for both long and short term use. Microalgae Spirulina platensis is one of microalgae that contains safe antibacterial compound, such as phycocyanin. In addition, these types of microalgae have other compounds that are very beneficial for skin. This research aims to obtain the optimal saponification reaction temperature of VCO and microalgae Spirulina platensis based antibacterial soap. The alkaline used to make this soap was NaOH 6.25 M. The variation of reaction temperature used is 50, 60, and 70°C. Free alkali/free fatty acid content in soap was obtained by titrating soap solution using KOH or HCl depends on the ch...","PeriodicalId":22239,"journal":{"name":"THE 4TH BIOMEDICAL ENGINEERING’S RECENT PROGRESS IN BIOMATERIALS, DRUGS DEVELOPMENT, HEALTH, AND MEDICAL DEVICES: Proceedings of the International Symposium of Biomedical Engineering (ISBE) 2019","volume":"18 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-12-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75121597","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":"Prediction of cutting force in end milling of glass fiber reinforced polymer (GFRP) composites using adaptive neuro fuzzy inference system (ANFIS)","authors":"M. K. Effendi, B. O. Soepangkat, Suhardjono, R. Norcahyo, Sutikno, Sampurno","doi":"10.1063/1.5138311","DOIUrl":"https://doi.org/10.1063/1.5138311","url":null,"abstract":"The anisotropic and heterogeneous properties of glass fiber-reinforced plastic (GFRP) composites lead to a challenging machining process. The end milling process of these materials generates excessive cutting force that leads to several undesirable damages such as high surface roughness and delamination. Therefore, it is necessary to model the cutting force during the end milling process of GFRP composites materials to obtain an accurate prediction of cutting force. End milling process parameters, i.e., depth of cut (Aa), feeding speed (Vf), and spindle speed (n) are used as an input parameter and each has three levels. Hence, a randomized full factorial 3 × 3 × 3 is applied as the design of experiments. On the other hand, the cutting force (Fc) was used as an output parameter. In this study, an adaptive network-based fuzzy inference system (ANFIS) method is applied to model the cutting force during the end milling process of GFRP composites.","PeriodicalId":22239,"journal":{"name":"THE 4TH BIOMEDICAL ENGINEERING’S RECENT PROGRESS IN BIOMATERIALS, DRUGS DEVELOPMENT, HEALTH, AND MEDICAL DEVICES: Proceedings of the International Symposium of Biomedical Engineering (ISBE) 2019","volume":"50 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-12-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80168753","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":"Front surface geometry modeling of remotely operated vehicle (ROV) body observation class","authors":"D. Satria, R. Wiryadinata, D. Esiswitoyo, Muhamad Haykal Fasya, I. Rosyadi, S. Susilo, R. Lusiani","doi":"10.1063/1.5138332","DOIUrl":"https://doi.org/10.1063/1.5138332","url":null,"abstract":"Sunda Strait of Indonesia needs a technology to find out information on the bottom of Sunda Strait, and the suitable technology is ROV. The existing ROVs have limitations; those are in design structure and hydrodynamic response. An early research on design concepts has been conducted to develop existing ROVs. This research has a purpose to develop existing ROVs and to continue preliminary research on design concepts of the ROVs, and also to obtain the best front surface geometry modeling of the ROV body. The method used was the Granville method which determines parametric profile on ROV body which had streamlined body geometry. The result of the research was to obtain K1(curvature at xm) and rn (radius of the curvature at front end part) modeling, so that the best front surface geometry modeling curve on the body of the ROV Observation Class can be found.","PeriodicalId":22239,"journal":{"name":"THE 4TH BIOMEDICAL ENGINEERING’S RECENT PROGRESS IN BIOMATERIALS, DRUGS DEVELOPMENT, HEALTH, AND MEDICAL DEVICES: Proceedings of the International Symposium of Biomedical Engineering (ISBE) 2019","volume":"23 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-12-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78167269","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":"Electromagnetic shielding to improve EMC of a robotic medical device","authors":"Voltaire B. Dupo, F. Belista, Vernicka de Sagun, N. Bugtai, Rennan Baldovino, Alexander C. Abad, J. Dungao","doi":"10.1063/1.5139387","DOIUrl":"https://doi.org/10.1063/1.5139387","url":null,"abstract":"Electromagnetic compatibility has been part of both R&D and product development for a long time. However, only a hand-full of these projects undergo the test for compliance. These are usually products from big companies or those sold in areas where certain requirements are needed to enter the market. In the case of medical devices, the Comite International Special des Perturbations Radioelectriques (CISPR) standard, is used in certain countries. This research revolves around the steps taken to comply with the CISPR 11 and CISPR 22 standards. Different methods and materials were used in combinations and are tested to observe the improvement in bringing the device to comply with electromagnetic safety standards. Moreover, this research would aid others who are trying to design their own medical device to fruition. Thus, give basis for them to try and experiment with their own set of radiation shielding.Electromagnetic compatibility has been part of both R&D and product development for a long time. However, only a hand-full of these projects undergo the test for compliance. These are usually products from big companies or those sold in areas where certain requirements are needed to enter the market. In the case of medical devices, the Comite International Special des Perturbations Radioelectriques (CISPR) standard, is used in certain countries. This research revolves around the steps taken to comply with the CISPR 11 and CISPR 22 standards. Different methods and materials were used in combinations and are tested to observe the improvement in bringing the device to comply with electromagnetic safety standards. Moreover, this research would aid others who are trying to design their own medical device to fruition. Thus, give basis for them to try and experiment with their own set of radiation shielding.","PeriodicalId":22239,"journal":{"name":"THE 4TH BIOMEDICAL ENGINEERING’S RECENT PROGRESS IN BIOMATERIALS, DRUGS DEVELOPMENT, HEALTH, AND MEDICAL DEVICES: Proceedings of the International Symposium of Biomedical Engineering (ISBE) 2019","volume":"17 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-12-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73976126","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":"Dissimilar joining metal of aluminum 6061 and galvanized pipe using friction welding method","authors":"Widia Setiawan, A. Herdiyanto, N. Santoso, Surojo","doi":"10.1063/1.5138327","DOIUrl":"https://doi.org/10.1063/1.5138327","url":null,"abstract":"The welding process is usually performed for joining, similar material. This research aims to study similar metals at low carbonese ST 37 with friction welding method. Traditional welding the electrode used, than welding result dirty, slag, crack and also deformation cause residual stress usually. In this study, the specimens used are in galvanized pipes with a 1.5 “diameter, 110 mm long and bushing made with aluminum 6061 which has 1.5” diameter with 30 mm long. The process of friction welding is done using a lathe with a speed of 860 rpm. The purpose of this study is to find out how strong the weld, the hardness value, and the micro structure result by doing friction welding method. The result of this research is bushing connection and galvanized pipe at welded area with temperature 225.8 ° C are 127,68 VHN and 55,86 VHN. The largest value of the tensile strength test is 8380N.","PeriodicalId":22239,"journal":{"name":"THE 4TH BIOMEDICAL ENGINEERING’S RECENT PROGRESS IN BIOMATERIALS, DRUGS DEVELOPMENT, HEALTH, AND MEDICAL DEVICES: Proceedings of the International Symposium of Biomedical Engineering (ISBE) 2019","volume":"21 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-12-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81011405","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 effects of pilot injection timing on the combustion process and exhaust emissions in dual-fuel diesel engine using biodiesel-CNG at high load","authors":"A. Trihatmojo, Dori Yuvenda, B. Sudarmanta","doi":"10.1063/1.5138286","DOIUrl":"https://doi.org/10.1063/1.5138286","url":null,"abstract":"Biodiesel and compressed natural gas (CNG) are alternative fuels that can be used in the dual-fuel engine. In this research, Biodiesel was used as a combustion pilot and CNG was applied as a substitution fuel injected at the intake process. The pilot injection timing has an important role in controlling the initial combustion of dual-fuel combustion. It is caused by the ignition delay of dual-fuel engines longer than single-fuel engines. The engine was kept at a constant speed of 2000 rpm and was given a high load. The single fuel mode used standard injection time of -13 °CA ATDC. The time of pilot injection in the dual-fuel engine was varied from -11 to -19 °CA ATDC in steps of -2 °CA to investigate the combustion process and exhaust emissions. The results show that dual-fuel mode with the standard time of pilot injection produces the cylinder pressure and heat release rate (HRR) greater than the single-fuel mode. Moreover, cylinder pressure increases 21.46% and peak pressure in the range of 10 – 15 °CA ATDC with advanced the time of pilot injection in dual-fuel mode. However, HRR slightly increases by 4.79% at high load. The lower exhaust emissions can be achieved with advanced the time of pilot injection -17° CA ATDC at high load.Biodiesel and compressed natural gas (CNG) are alternative fuels that can be used in the dual-fuel engine. In this research, Biodiesel was used as a combustion pilot and CNG was applied as a substitution fuel injected at the intake process. The pilot injection timing has an important role in controlling the initial combustion of dual-fuel combustion. It is caused by the ignition delay of dual-fuel engines longer than single-fuel engines. The engine was kept at a constant speed of 2000 rpm and was given a high load. The single fuel mode used standard injection time of -13 °CA ATDC. The time of pilot injection in the dual-fuel engine was varied from -11 to -19 °CA ATDC in steps of -2 °CA to investigate the combustion process and exhaust emissions. The results show that dual-fuel mode with the standard time of pilot injection produces the cylinder pressure and heat release rate (HRR) greater than the single-fuel mode. Moreover, cylinder pressure increases 21.46% and peak pressure in the range of 10 – 15 °CA ...","PeriodicalId":22239,"journal":{"name":"THE 4TH BIOMEDICAL ENGINEERING’S RECENT PROGRESS IN BIOMATERIALS, DRUGS DEVELOPMENT, HEALTH, AND MEDICAL DEVICES: Proceedings of the International Symposium of Biomedical Engineering (ISBE) 2019","volume":"25 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-12-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73491987","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":"Ball bearing fault diagnosis using wavelet transform and principal component analysis","authors":"B. Kamiel, I. Howard","doi":"10.1063/1.5138361","DOIUrl":"https://doi.org/10.1063/1.5138361","url":null,"abstract":"This study proposes a new method for fault diagnosis in ball bearings based on wavelet transform and principal component analysis (PCA) of the acquired vibration signals. The signals collected are pre-processed using a wavelet transform to decompose the signals into low (approximated) and high (detailed) frequency part where the high-frequency part are needed for fault diagnosis purposes. Eleven potential statistical features are then extracted from the high-frequency part coming from different bearing fault signals and those from healthy bearings as well. Four types of signals are proposed, they are outer race fault, inner race fault, ball fault and no-fault signals. The PCA is used to linearly transform and reduce multidimensional data resulted from statistical extraction down to a few dimensions for more straightforward analysis. Six principal components retaining more than 95% significance level are used for bearing fault detection and classification. By combining the wavelet transform, statistical features extraction and PCA, the proposed method successfully detected and classified fault types without knowledge of a bearing fault frequencies and analysis from experienced users.This study proposes a new method for fault diagnosis in ball bearings based on wavelet transform and principal component analysis (PCA) of the acquired vibration signals. The signals collected are pre-processed using a wavelet transform to decompose the signals into low (approximated) and high (detailed) frequency part where the high-frequency part are needed for fault diagnosis purposes. Eleven potential statistical features are then extracted from the high-frequency part coming from different bearing fault signals and those from healthy bearings as well. Four types of signals are proposed, they are outer race fault, inner race fault, ball fault and no-fault signals. The PCA is used to linearly transform and reduce multidimensional data resulted from statistical extraction down to a few dimensions for more straightforward analysis. Six principal components retaining more than 95% significance level are used for bearing fault detection and classification. By combining the wavelet transform, statistical fe...","PeriodicalId":22239,"journal":{"name":"THE 4TH BIOMEDICAL ENGINEERING’S RECENT PROGRESS IN BIOMATERIALS, DRUGS DEVELOPMENT, HEALTH, AND MEDICAL DEVICES: Proceedings of the International Symposium of Biomedical Engineering (ISBE) 2019","volume":"27 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-12-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81626868","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":"Operator splitting method for solving anisotropic problem","authors":"I. Suryo, Maureen Clerc","doi":"10.1063/1.5138341","DOIUrl":"https://doi.org/10.1063/1.5138341","url":null,"abstract":"The electroencephalography is a non-invasive technique to study electrical brain activity. The electrical brain activity is a complex process of electrical propagation because the brain structure is an incredibly complex structure. This complex structure leads to different conductivity property in term of its magnitude and orientation, called anisotropic conductivity. Using Maxwell’s equations, the electrical brain activity has been studied intensively. For simplification, the quasistatic Maxwell’s equations are used to model the electrical brain activity and it leads to deal with a Poisson’s equation. In this research, a feasibility study of using Operator Splitting Method (OSM) to solve anisotropic 2-Dimensional (2D) Poisson’s equation is performed. A freeware of finite element method (FEM) is employed to build matrices used in the OSM algorithm. The OSM algorithm which is written in Matlab is then tested to solve anisotropic 2D Laplace’s equation and anisotropic Poisson’s equation with dipolar source. Some numerical experiments have been performed to test the performance of the OSM algorithm. The OSM solution of anisotropic 2D Laplace’s equation coincide with the exact and direct numerical solution of the problem. For anisotropic 2D Poisson’s equation with dipolar source, some similar results has been obtained too. The pattern of the OSM solutions are similar to the pattern of direct numerical solutions of the problem. The results arise a hope to attempt implementing the OSM algorithm for more complex problem such as a realistic human head model.","PeriodicalId":22239,"journal":{"name":"THE 4TH BIOMEDICAL ENGINEERING’S RECENT PROGRESS IN BIOMATERIALS, DRUGS DEVELOPMENT, HEALTH, AND MEDICAL DEVICES: Proceedings of the International Symposium of Biomedical Engineering (ISBE) 2019","volume":"104 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-12-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85538994","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":"Evaluation of thermal and hydraulic of air flow through perforated concave delta winglet vortex generators in a rectangular channel with field synergy principle","authors":"Syaiful, Pracayasa Ade Putra, M. Tauviqirrahman, N. Sinaga, M. Bae","doi":"10.1063/1.5138268","DOIUrl":"https://doi.org/10.1063/1.5138268","url":null,"abstract":"A compact heat exchanger can be found in air conditioning, automotive industry, chemical processing, etc. Most compact heat exchangers use gas as a heating or cooling fluid. However, gas has high thermal resistance, which affects lower heat transfer. In order to reduce thermal resistance on the gas side, the convection heat transfer coefficient is increased. One effective way to enhance the convection heat transfer coefficient is to use a vortex generator. Vortex generators are surface protrusions that are able to manipulate flow resulting in an increase in convection heat transfer coefficient by enhancing the mixture of air near the wall with the air in the main flow. Therefore, this work aims to evaluate the thermal and hydraulic characteristics of airflow through the perforated concave delta winglet vortex generator. This study was conducted on delta winglet vortex generators (DW VGs) and concave delta winglet vortex generator (CDW VGs) with the 45° angle of attack with a number of hole three-holes that applied on every vortex generator with one-line fitting, two-line fitting, and three-line fitting respectively. Results of simulation revealed that heat transfer coefficient (h) for perforated CDW VGs decrease 16.07% and pressure drop decrease 7% compare to that without hole configuration at Reynolds number of 8600. Convection heat transfer coefficient for perforated DW VGs decrease 13.76% and pressure drop decrease 5.22% compare to delta winglet without hole at Reynolds number of 8600.A compact heat exchanger can be found in air conditioning, automotive industry, chemical processing, etc. Most compact heat exchangers use gas as a heating or cooling fluid. However, gas has high thermal resistance, which affects lower heat transfer. In order to reduce thermal resistance on the gas side, the convection heat transfer coefficient is increased. One effective way to enhance the convection heat transfer coefficient is to use a vortex generator. Vortex generators are surface protrusions that are able to manipulate flow resulting in an increase in convection heat transfer coefficient by enhancing the mixture of air near the wall with the air in the main flow. Therefore, this work aims to evaluate the thermal and hydraulic characteristics of airflow through the perforated concave delta winglet vortex generator. This study was conducted on delta winglet vortex generators (DW VGs) and concave delta winglet vortex generator (CDW VGs) with the 45° angle of attack with a number of hole three-holes tha...","PeriodicalId":22239,"journal":{"name":"THE 4TH BIOMEDICAL ENGINEERING’S RECENT PROGRESS IN BIOMATERIALS, DRUGS DEVELOPMENT, HEALTH, AND MEDICAL DEVICES: Proceedings of the International Symposium of Biomedical Engineering (ISBE) 2019","volume":"3 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-12-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91305721","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}