Barium titanate (BaTiO3) is ceramic material that is widely used in various applications..Electrostatic dielectric energy storage capacitor is one of the application of Barium titanate (BaTiO3) material. Composite materials based on barium titanate (BaTiO3) such as Polyvinylidene fluoride (PVDF)/BaTiO3 and BaTiO3/HAp Hydroxyapatite have been developed to improve the electrical properties of the materials. Many research have been reported hat barium titanate in nano phase has a maximum dielectric constant 5000 with particle size range of 30-50 nm. The addition of BaTiO3 composition as a filler to PVDF/BaTiO3 composite caused increasing of dielectric constant compared to the dielectric constant properties of the PVDF. Similar results also found on BaTiO3/HAp composite. From this review, it was also found that the composite of these three materials is a candidate for future material to improve the electrical properties of PVDF which have been applied to electrostatic dielectric energy storage capacitor applications.
{"title":"TINJAUAN PENGEMBANGAN MATERIAL BERBASIS BARIUM TITANAT, KOMPOSIT PVDF/BATIO3 DAN BATIO3/HAP UNTUK APLIKASI ELECTROSTATIC DIELECTRIC ENERGY STORAGE CAPACITOR","authors":"Septian Rahmat Adnan, B. Kurniawan, B. Soegijono","doi":"10.21776/jrm.v14i2.1423","DOIUrl":"https://doi.org/10.21776/jrm.v14i2.1423","url":null,"abstract":"Barium titanate (BaTiO3) is ceramic material that is widely used in various applications..Electrostatic dielectric energy storage capacitor is one of the application of Barium titanate (BaTiO3) material. Composite materials based on barium titanate (BaTiO3) such as Polyvinylidene fluoride (PVDF)/BaTiO3 and BaTiO3/HAp Hydroxyapatite have been developed to improve the electrical properties of the materials. Many research have been reported hat barium titanate in nano phase has a maximum dielectric constant 5000 with particle size range of 30-50 nm. The addition of BaTiO3 composition as a filler to PVDF/BaTiO3 composite caused increasing of dielectric constant compared to the dielectric constant properties of the PVDF. Similar results also found on BaTiO3/HAp composite. From this review, it was also found that the composite of these three materials is a candidate for future material to improve the electrical properties of PVDF which have been applied to electrostatic dielectric energy storage capacitor applications.","PeriodicalId":167086,"journal":{"name":"Jurnal Rekayasa Mesin","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-08-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121593521","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}
I. Gede, Artha Negara, Ade Mulawarman, G. Santosa, L. P. I. Midiani, Jurusan Teknik, Mesin Politeknik, Negeri Bali
Indonesia is a country that has large, widespread and diverse renewable energy potential that can support energy transition and achieve net zero emission (NZE) target by 2060 or sooner. This paper aimed to investigate characteristics of exhaust emissions and consumption fuel of biogas-fuelled electric generator. The biogas used comes from organic cow dung through an anaerobic fermentation process. About 40% vol. CH4 content observed in biogas. A 420 CC of single cylinder generator was used in this study. Based on the results, it can be seen that biogas exhaust CO emissions are relatively lower than gasoline. CO emissions are directly proportional to the electric load. The lowest CO2 emission was obtained at 4,7 % for biogas with 300 W electric load and 8,4 % for gasoline which is the highest emission. The concentration of hydrocarbons was observed to be 20 ppm for biogas while 64 ppm for gasoline with 300 W electric load. For the fuel consumption, biogas obtained relatively higher results than gasoline for each electric load.
{"title":"STUDI EKSPERIMENTAL GENERATOR ELEKTRIK BERBAHAN BAKAR BIOGAS GUNA MENDUKUNG NET ZERO EMISSION (NZE)","authors":"I. Gede, Artha Negara, Ade Mulawarman, G. Santosa, L. P. I. Midiani, Jurusan Teknik, Mesin Politeknik, Negeri Bali","doi":"10.21776/jrm.v14i2.1431","DOIUrl":"https://doi.org/10.21776/jrm.v14i2.1431","url":null,"abstract":"Indonesia is a country that has large, widespread and diverse renewable energy potential that can support energy transition and achieve net zero emission (NZE) target by 2060 or sooner. This paper aimed to investigate characteristics of exhaust emissions and consumption fuel of biogas-fuelled electric generator. The biogas used comes from organic cow dung through an anaerobic fermentation process. About 40% vol. CH4 content observed in biogas. A 420 CC of single cylinder generator was used in this study. Based on the results, it can be seen that biogas exhaust CO emissions are relatively lower than gasoline. CO emissions are directly proportional to the electric load. The lowest CO2 emission was obtained at 4,7 % for biogas with 300 W electric load and 8,4 % for gasoline which is the highest emission. The concentration of hydrocarbons was observed to be 20 ppm for biogas while 64 ppm for gasoline with 300 W electric load. For the fuel consumption, biogas obtained relatively higher results than gasoline for each electric load.","PeriodicalId":167086,"journal":{"name":"Jurnal Rekayasa Mesin","volume":"95 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-08-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125704161","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}
The era of heavy equipment industry in Indonesia was begun in the mid-1990s, by the first heavy equipment company, PT. United Tractors Tbk. This company have started heavy equipment sales and rental throughout Indonesia, which the well-known heavy equipment is the Hydraulic Excavator. It is used to excavate, rotate, move, load, mobilize and demobilize objects. Since the excavator was always used in the site’s daily operation, the number of failures is high, then the rate of excavator’s physical availability is below the requirement standard. The purpose of this study is to analyze the physical availability of the Komatsu Excavator Komatsu PC2000-8 by reducing the failure on the Boom Attachment by using the FMEA method. In order to obtain the optimum design and conditions as heavy machine, the analytical study was utilized for increasing physical availability on Hydraulic Excavators. According to the estimation of the analytical study, it was found that the highest physical availability of the PC2000-8 Hydraulic Excavator was at 98.4%, with the MTBF (Mean Time Before Failure) was at 269 hours.
印度尼西亚重型设备工业的时代始于20世纪90年代中期，由第一家重型设备公司PT. United tractor Tbk开始。本公司已开始在印尼各地销售和租赁重型设备，其中知名的重型设备是液压挖掘机。它用于挖掘、旋转、移动、装载、调动和遣散物体。由于挖掘机一直在现场的日常作业中使用，故障率高，那么挖掘机的物理利用率就低于要求标准。本研究的目的是利用FMEA方法，通过减少动臂附件的故障，来分析小松挖掘机PC2000-8的物理可用性。为了获得作为重型机械的最佳设计和条件，对液压挖掘机的物理利用率进行了分析研究。根据分析研究的估计，发现PC2000-8液压挖掘机的最高物理可用性为98.4%，MTBF(平均故障前时间)为269小时。
{"title":"PENINGKATAN KETERSEDIAAN FISIK DAN WAKTU RATA-RATA ANTARA KEGAGALAN UNIT KOMATSU PC2000-8 PADA PT. UNITED TRACTORS, TBK DENGAN METODE FMEA","authors":"Rustanto Rustanto, Aditya Tirta Pratama, Anggi Febrianto, Firdaus Agung Syafutra, Willian Septianugraha, Badai Merdeka Walfitri","doi":"10.21776/jrm.v14i2.1053","DOIUrl":"https://doi.org/10.21776/jrm.v14i2.1053","url":null,"abstract":"The era of heavy equipment industry in Indonesia was begun in the mid-1990s, by the first heavy equipment company, PT. United Tractors Tbk. This company have started heavy equipment sales and rental throughout Indonesia, which the well-known heavy equipment is the Hydraulic Excavator. It is used to excavate, rotate, move, load, mobilize and demobilize objects. Since the excavator was always used in the site’s daily operation, the number of failures is high, then the rate of excavator’s physical availability is below the requirement standard. The purpose of this study is to analyze the physical availability of the Komatsu Excavator Komatsu PC2000-8 by reducing the failure on the Boom Attachment by using the FMEA method. In order to obtain the optimum design and conditions as heavy machine, the analytical study was utilized for increasing physical availability on Hydraulic Excavators. According to the estimation of the analytical study, it was found that the highest physical availability of the PC2000-8 Hydraulic Excavator was at 98.4%, with the MTBF (Mean Time Before Failure) was at 269 hours.","PeriodicalId":167086,"journal":{"name":"Jurnal Rekayasa Mesin","volume":"155 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-08-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132151613","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}
Ikhsan Ekariadi, Yeni Muriani Zulaida, Suryana Suryana
Aluminum is a lightweight material that has good corrosion resistance and electrical conductivity. It can be used for making aluminum foam. One of the methods for making aluminum foam is the melt route method. Making aluminum foam using the melt route process, is called melting aluminum metal, adding foaming agent, and stirring. This study aims to determine the effect of adding CaCO3 from eggshells and stirring time on the foaming ability of aluminum foam. The characteristics that will be observed include the type of aluminum foam, height, pore size, density, porosity, and compressive strength. This research used the melt route method with adding variations in the mass composition of CaCO3 is 4, 5, and 6 wt% on smelted aluminum with stirring times of 30, 45, and 60 seconds. The process is carried out by heating aluminum to 760 °C and adding Al2O3 as a viscosity modifier then adding variations in the mass composition of CaCO3 and stirring with a variation of stirring time. The results show that the highest aluminum foam gets a value of 75 mm. The pore sizes of aluminum foam are obtained ranged from 0.287 to 1.109 mm. The optimal value obtained from the addition of CaCO3 with a mass composition of 4 wt% with a stirring time of 45 seconds, has a density value of 0.388 g/cm3, a porosity percentage of 85.848%, and a compressive strength of 1.777 MPa.
{"title":"PENGARUH PENAMBAHAN CACO3 DARI LIMBAH KULIT TELUR DAN WAKTU PENGADUKAN PADA PEMBUATAN ALUMINIUM FOAM MENGGUNAKAN METODE MELT ROUTE","authors":"Ikhsan Ekariadi, Yeni Muriani Zulaida, Suryana Suryana","doi":"10.21776/jrm.v14i2.1192","DOIUrl":"https://doi.org/10.21776/jrm.v14i2.1192","url":null,"abstract":"Aluminum is a lightweight material that has good corrosion resistance and electrical conductivity. It can be used for making aluminum foam. One of the methods for making aluminum foam is the melt route method. Making aluminum foam using the melt route process, is called melting aluminum metal, adding foaming agent, and stirring. This study aims to determine the effect of adding CaCO3 from eggshells and stirring time on the foaming ability of aluminum foam. The characteristics that will be observed include the type of aluminum foam, height, pore size, density, porosity, and compressive strength. This research used the melt route method with adding variations in the mass composition of CaCO3 is 4, 5, and 6 wt% on smelted aluminum with stirring times of 30, 45, and 60 seconds. The process is carried out by heating aluminum to 760 °C and adding Al2O3 as a viscosity modifier then adding variations in the mass composition of CaCO3 and stirring with a variation of stirring time. The results show that the highest aluminum foam gets a value of 75 mm. The pore sizes of aluminum foam are obtained ranged from 0.287 to 1.109 mm. The optimal value obtained from the addition of CaCO3 with a mass composition of 4 wt% with a stirring time of 45 seconds, has a density value of 0.388 g/cm3, a porosity percentage of 85.848%, and a compressive strength of 1.777 MPa.","PeriodicalId":167086,"journal":{"name":"Jurnal Rekayasa Mesin","volume":"33 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-08-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122188351","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}
Sandiwch composite is a type of structural composite material composed of a strong facesheet and a low-density core material. Sandwich composites have a high mechanical properties with their lightweight structure, so this material can be applied to aircraft structures. This study aims to determine the mechanical properties of carbon fiber sandwich composite twill 3K/divinycelll foam with various fabrication methods. The fabrication methods used vacuum bagging methods, and vacuum assisted resin infusion method. Mechanical tests conducted are flatwise compressive with ASTM C364 standard, edgewise compressive with ASTM C365 standard, flexural three point bending with ASTM C393 standard, and tensile strength with ASTM D3039 standard. In addition, scanning electron microscope test were also conducted to determine the morphology of the surface of the material and the bond between the fiber and the matrix. The results were obtained that vacuum asssisted resin infusion method has the most optimum mechanical with a high value in each test, such as the result of flexural three point bending of 47,51 MPa is better when compared with the result of vacuum bagging method of 18,70 MPa. Scanning electron microscope test results also showed that the vacuum assisted resin infusion method has the best morphology with perfect bond between matrix and fiber. So that it can be concluded that the most optimal mechanical properties of sandwich composites are produced by vacuum asssisted resin infusion method.
{"title":"ANALISIS SIFAT MEKANIK KOMPOSIT SANDWICH SERAT KARBON TWILL 3K/DIVINYCELL FOAM DENGAN VARIASI METODE FABRIKASI","authors":"Kamila Nurul Aini, Arif Tjahjono, Nurul Lailatul Muzayadah, Afid Nugroho, Taufiq Satrio Nurtiasto","doi":"10.21776/jrm.v14i2.1353","DOIUrl":"https://doi.org/10.21776/jrm.v14i2.1353","url":null,"abstract":"Sandiwch composite is a type of structural composite material composed of a strong facesheet and a low-density core material. Sandwich composites have a high mechanical properties with their lightweight structure, so this material can be applied to aircraft structures. This study aims to determine the mechanical properties of carbon fiber sandwich composite twill 3K/divinycelll foam with various fabrication methods. The fabrication methods used vacuum bagging methods, and vacuum assisted resin infusion method. Mechanical tests conducted are flatwise compressive with ASTM C364 standard, edgewise compressive with ASTM C365 standard, flexural three point bending with ASTM C393 standard, and tensile strength with ASTM D3039 standard. In addition, scanning electron microscope test were also conducted to determine the morphology of the surface of the material and the bond between the fiber and the matrix. The results were obtained that vacuum asssisted resin infusion method has the most optimum mechanical with a high value in each test, such as the result of flexural three point bending of 47,51 MPa is better when compared with the result of vacuum bagging method of 18,70 MPa. Scanning electron microscope test results also showed that the vacuum assisted resin infusion method has the best morphology with perfect bond between matrix and fiber. So that it can be concluded that the most optimal mechanical properties of sandwich composites are produced by vacuum asssisted resin infusion method.","PeriodicalId":167086,"journal":{"name":"Jurnal Rekayasa Mesin","volume":"5 6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-08-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124996640","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}
Muhammad Rizqi Almuhtadee, Adi Setiawan, A. Alchalil, A. Aljufri
Anaerobic digestion of biomass is a beneficial strategy for energy production as well as waste management system. Through the fermentation process, the sources of biomass such as domestic organic and restaurant wastes can be utilized to generate renewable energy. In this study, the biogas was produced from food waste to generate electricity. The performance of biogas-fueled generator sets was evaluated and compared with gasoline (pertalite) fuel at various electric loads. There are seven different load variations: idle, 100, 300, 500, and 700 Watts. Data was collected and analyzed using the combustion engine gas cycle theory. The biogas-fueled engine test results indicated that the brake power on average was 1.9 kW, or 65.6% of the maximum brake power specified by the engine manufactured. The average torque was 7.02 Nm, or 68.14% of the maximum torque that specified on the name plate. The average brake specific fuel consumption (BSFC) of biogas was 0.41 kg/kWh, while the BSFC of pertalite fuel was 0.168 kg/kWh. Compared to biogas fuel, the BSFC of pertalite is less with a difference of 0.242 kg/kWh. Overall, biogas produced from restaurant waste is technically feasible to be used as an alternative fuel for electric generator engine.
{"title":"ANALISA UNJUK KERJA GENERATOR SET BERBAHAN BAKAR BIOGAS DARI LIMBAH RUMAH MAKAN","authors":"Muhammad Rizqi Almuhtadee, Adi Setiawan, A. Alchalil, A. Aljufri","doi":"10.21776/jrm.v14i2.1463","DOIUrl":"https://doi.org/10.21776/jrm.v14i2.1463","url":null,"abstract":"Anaerobic digestion of biomass is a beneficial strategy for energy production as well as waste management system. Through the fermentation process, the sources of biomass such as domestic organic and restaurant wastes can be utilized to generate renewable energy. In this study, the biogas was produced from food waste to generate electricity. The performance of biogas-fueled generator sets was evaluated and compared with gasoline (pertalite) fuel at various electric loads. There are seven different load variations: idle, 100, 300, 500, and 700 Watts. Data was collected and analyzed using the combustion engine gas cycle theory. The biogas-fueled engine test results indicated that the brake power on average was 1.9 kW, or 65.6% of the maximum brake power specified by the engine manufactured. The average torque was 7.02 Nm, or 68.14% of the maximum torque that specified on the name plate. The average brake specific fuel consumption (BSFC) of biogas was 0.41 kg/kWh, while the BSFC of pertalite fuel was 0.168 kg/kWh. Compared to biogas fuel, the BSFC of pertalite is less with a difference of 0.242 kg/kWh. Overall, biogas produced from restaurant waste is technically feasible to be used as an alternative fuel for electric generator engine.","PeriodicalId":167086,"journal":{"name":"Jurnal Rekayasa Mesin","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-08-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130690023","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}
Batumahadi Siregar, Banu Nursanni, S. Januariyansah, Sutrisno Sutrisno, Kinanti Wijaya
Utilization and management of Empty Fruit Bunches (EFB) fibre continue to develop as the main ingredient and additional material used in various industrial products. The technological breakthrough targeted in this study is the developed EFB fibre as a filler in polymer composite partition boards which are used as heat retainers in the interior construction of buildings. The partition board is a heat insulator, and its thermal conductivity is affected by mass density and porosity. The purpose of this study was to determine the heat resistance of partition board products to reduce the heat entering the room from outside by propagating through walls exposed to direct sunlight. The test method used is adopted from ASTM C177-13, namely the measurement of heat propagation with a modification of the heat source of 40 watts. In addition, mass density tests (referring to SNI 03-2105-2006) and water absorption (referring to ASTM D5229M-12) were also carried out on the product. The specimens were based on the formation of Singapore Highpolymer Chemical Product (SHCP) 2667 WNC polyester resin matrix partition board with weight fractions of 25%, 30%, and 35% chop strand mat (CSM). The test results show that the highest thermal conductivity value is found on the board with a weight fraction of 25%, namely 0.153 W/m.°C with a mass density of 1.16 g/cm3 and a water absorption capacity of 3.38%. However, the lowest thermal conductivity value was found in the fibre with weight fraction of 35%, namely 0.147 W/m. °C at a mass density of 1.24 g/cm3 and a water absorption capacity of 3.75%.
{"title":"THERMAL CONDUCTIVITY OF PARTITION BOARD BY POLYMER COMPOSITE WITH FILLER EMPTY FRIUT BUNCHES FIBRES","authors":"Batumahadi Siregar, Banu Nursanni, S. Januariyansah, Sutrisno Sutrisno, Kinanti Wijaya","doi":"10.21776/jrm.v14i2.1263","DOIUrl":"https://doi.org/10.21776/jrm.v14i2.1263","url":null,"abstract":"Utilization and management of Empty Fruit Bunches (EFB) fibre continue to develop as the main ingredient and additional material used in various industrial products. The technological breakthrough targeted in this study is the developed EFB fibre as a filler in polymer composite partition boards which are used as heat retainers in the interior construction of buildings. The partition board is a heat insulator, and its thermal conductivity is affected by mass density and porosity. The purpose of this study was to determine the heat resistance of partition board products to reduce the heat entering the room from outside by propagating through walls exposed to direct sunlight. The test method used is adopted from ASTM C177-13, namely the measurement of heat propagation with a modification of the heat source of 40 watts. In addition, mass density tests (referring to SNI 03-2105-2006) and water absorption (referring to ASTM D5229M-12) were also carried out on the product. The specimens were based on the formation of Singapore Highpolymer Chemical Product (SHCP) 2667 WNC polyester resin matrix partition board with weight fractions of 25%, 30%, and 35% chop strand mat (CSM). The test results show that the highest thermal conductivity value is found on the board with a weight fraction of 25%, namely 0.153 W/m.°C with a mass density of 1.16 g/cm3 and a water absorption capacity of 3.38%. However, the lowest thermal conductivity value was found in the fibre with weight fraction of 35%, namely 0.147 W/m. °C at a mass density of 1.24 g/cm3 and a water absorption capacity of 3.75%.","PeriodicalId":167086,"journal":{"name":"Jurnal Rekayasa Mesin","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-08-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121343585","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}
The study of “Lifeboat placement effectiveness” which was applied to the evacuation process of passenger ships should be based on the regulation of IMO MSC.1/Circ.1533. The analysis of the evacuation duration was important considering the high number of fatalities in shipping accidents based on KNKT data, as many as 686 people died in the last 7 years. This study analyzed the duration of evacuation using a simulation method based on “Agent Based Modelling Simulation” with the purpose to obtain a modeling framework to simulate the evacuation process to the lifeboat in 3 dimensions. Simulations were applied to 4 cases with 2 different lifeboat positions. The results of the analysis showed that the total value of the evacuation duration for lifeboats placement on the navigation deck which was placed close to the main stair of the exit route was leading than the placement in the existing position, which as case 1 lead by 1 minute, case 2 lead by 1 minute 2 seconds, case 3 lead by 23 seconds, and case 4 a lead by 17 seconds. The calculation also showed that the total evacuation duration in each case was valued at 60 minutes, which met the IMO MSC.1/Circ.1533 standard.
适用于客船疏散过程的“救生艇安置效率”研究应以IMO MSC.1/Circ.1533的规定为依据。考虑到基于KNKT数据的航运事故死亡人数很高，对撤离时间的分析很重要，在过去7年中有多达686人死亡。本研究采用基于“Agent based modeling simulation”的仿真方法对疏散持续时间进行分析，目的是获得一个三维模拟向救生艇疏散过程的建模框架。采用2种不同救生艇位置的4种情况进行了仿真。分析结果表明，救生艇放置在靠近出口路线主楼梯的导航甲板上的总疏散时间比放置在现有位置的救生艇的总疏散时间要长，其中情况1领先1分钟，情况2领先1分2秒，情况3领先23秒，情况4领先17秒。计算还表明，每次疏散的总时间为60分钟，符合IMO MSC.1/Circ的要求。1533标准。
{"title":"ANALISA LIFEBOAT PLACEMENT EFFECTIVENESS TERHADAP PROSES EVAKUASI KAPAL PENUMPANG MENGGUNAKAN METODE AGENT BASED MODELLING SIMULATION","authors":"Imam Pujo Mulyatno, Parlindungan Manik, Shalwa An-nisa Addawiyah","doi":"10.21776/jrm.v14i2.1348","DOIUrl":"https://doi.org/10.21776/jrm.v14i2.1348","url":null,"abstract":"The study of “Lifeboat placement effectiveness” which was applied to the evacuation process of passenger ships should be based on the regulation of IMO MSC.1/Circ.1533. The analysis of the evacuation duration was important considering the high number of fatalities in shipping accidents based on KNKT data, as many as 686 people died in the last 7 years. This study analyzed the duration of evacuation using a simulation method based on “Agent Based Modelling Simulation” with the purpose to obtain a modeling framework to simulate the evacuation process to the lifeboat in 3 dimensions. Simulations were applied to 4 cases with 2 different lifeboat positions. The results of the analysis showed that the total value of the evacuation duration for lifeboats placement on the navigation deck which was placed close to the main stair of the exit route was leading than the placement in the existing position, which as case 1 lead by 1 minute, case 2 lead by 1 minute 2 seconds, case 3 lead by 23 seconds, and case 4 a lead by 17 seconds. The calculation also showed that the total evacuation duration in each case was valued at 60 minutes, which met the IMO MSC.1/Circ.1533 standard.","PeriodicalId":167086,"journal":{"name":"Jurnal Rekayasa Mesin","volume":"42 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-08-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116952778","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}
Nasrul Ilminnafik, Atlanta Iwananda, Muh. Nurkoyim Kustanto, Rima Zidni Karimatan Nisa
Research has been carried out on the effect of biodiesel and ethanol fuel mixtures on diesel engine performance and emissions. Ethanol (C2H5OH) is a type of alcohol that can improve the characteristics of biodiesel. The effect of ethanol on engine performance was investigated by adding B30 (a mixture of 30% nyamplung biodiesel (calophyllum inophyllum) and 70% petrodiesel). The concentration of ethanol added to B30 is 10% v/v which is called the B30E10 mixture. The composition of the fuel mixture is B0 (petrodiesel), B30, B30E10 and Pertadex. The research was conducted on a single cylinder four stroke diesel engine with a natural air system and coupled to a generator that functions as a dynamometer. Three times the test was carried out for each load applied to the engine varying from 0, 200, 400, and 600 W at a constant rotation speed of 1700 rpm. The research results that the constant engine speed method and variations in lamp load produce torque values (Nm) and effective power (kW) which tend to be the same between fuels, this happens because it is influenced by the governor mechanism. The highest fuel consumption occurred at the addition of 10% ethanol (B30E10). The lowest thermal efficiency occurs in B30E10. Exhaust emissions of carbon monoxide decreased with the addition of 10% ethanol.
{"title":"KINERJA DAN EMISI MESIN DIESEL 1 SILINDER BERBAHAN BAKAR CAMPURAN BIODIESEL NYAMPLUNG DAN ETANOL","authors":"Nasrul Ilminnafik, Atlanta Iwananda, Muh. Nurkoyim Kustanto, Rima Zidni Karimatan Nisa","doi":"10.21776/jrm.v14i2.1335","DOIUrl":"https://doi.org/10.21776/jrm.v14i2.1335","url":null,"abstract":"Research has been carried out on the effect of biodiesel and ethanol fuel mixtures on diesel engine performance and emissions. Ethanol (C2H5OH) is a type of alcohol that can improve the characteristics of biodiesel. The effect of ethanol on engine performance was investigated by adding B30 (a mixture of 30% nyamplung biodiesel (calophyllum inophyllum) and 70% petrodiesel). The concentration of ethanol added to B30 is 10% v/v which is called the B30E10 mixture. The composition of the fuel mixture is B0 (petrodiesel), B30, B30E10 and Pertadex. The research was conducted on a single cylinder four stroke diesel engine with a natural air system and coupled to a generator that functions as a dynamometer. Three times the test was carried out for each load applied to the engine varying from 0, 200, 400, and 600 W at a constant rotation speed of 1700 rpm. The research results that the constant engine speed method and variations in lamp load produce torque values (Nm) and effective power (kW) which tend to be the same between fuels, this happens because it is influenced by the governor mechanism. The highest fuel consumption occurred at the addition of 10% ethanol (B30E10). The lowest thermal efficiency occurs in B30E10. Exhaust emissions of carbon monoxide decreased with the addition of 10% ethanol.","PeriodicalId":167086,"journal":{"name":"Jurnal Rekayasa Mesin","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-08-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134331031","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}
On the industrial side, the selection of materials for a product produced by a company must be following the function and purpose of the product. There are many types of materials used by various companies in the manufacture of a product, one of which is aluminium. This study aims to determine the effect of temperature variations of 3% Al-TiC Composite Heat Treatment 350°C, 450°C, 550°C on the mechanical properties and microstructure with the cooling slope method. The casting process is carried out using A356 aluminium material and the addition of 3% titanium carbide (TiC). The casting results are poured into a permanent mould through a cooling slope with a pouring angle of 45°. And finally carried out by heat treatment on the test object with temperature variations of 350°C, 450°C, 550°C with oil cooling media SAE 40. The highest hardness was obtained at a heat treatment temperature of 550°C with a value of 64.25 BHN, at a temperature of 450°C with a value of 60.02 BHN, and 350°C with a value of 56.59 BHN. The highest tensile strength was obtained at a heat treatment temperature of 550°C of 219,862 MPa, a temperature of 450°C of 183,273 MPa, and 350°C of 164,328 MPa. The obtained microstructure shows hypo-eutectic silicon dispersed among the aluminium. The microstructure shows that the homogenization of silicon and TiC at a heat treatment temperature of 550°C is very good, as evidenced by the uniformly dispersed density of the alloy filling the aluminium matrix.
{"title":"ANALISA PENGARUH SUHU PERLAKUAN PANAS TERHADAP PROPERTI MEKANIK KOMPOSIT AL-TIC 3% DENGAN METODE COOLING SLOPE SUDUT KEMIRINGAN 45°","authors":"Farida Ariani, Diky Setiawan Hutabarat","doi":"10.21776/jrm.v14i2.1206","DOIUrl":"https://doi.org/10.21776/jrm.v14i2.1206","url":null,"abstract":"On the industrial side, the selection of materials for a product produced by a company must be following the function and purpose of the product. There are many types of materials used by various companies in the manufacture of a product, one of which is aluminium. This study aims to determine the effect of temperature variations of 3% Al-TiC Composite Heat Treatment 350°C, 450°C, 550°C on the mechanical properties and microstructure with the cooling slope method. The casting process is carried out using A356 aluminium material and the addition of 3% titanium carbide (TiC). The casting results are poured into a permanent mould through a cooling slope with a pouring angle of 45°. And finally carried out by heat treatment on the test object with temperature variations of 350°C, 450°C, 550°C with oil cooling media SAE 40. The highest hardness was obtained at a heat treatment temperature of 550°C with a value of 64.25 BHN, at a temperature of 450°C with a value of 60.02 BHN, and 350°C with a value of 56.59 BHN. The highest tensile strength was obtained at a heat treatment temperature of 550°C of 219,862 MPa, a temperature of 450°C of 183,273 MPa, and 350°C of 164,328 MPa. The obtained microstructure shows hypo-eutectic silicon dispersed among the aluminium. The microstructure shows that the homogenization of silicon and TiC at a heat treatment temperature of 550°C is very good, as evidenced by the uniformly dispersed density of the alloy filling the aluminium matrix.","PeriodicalId":167086,"journal":{"name":"Jurnal Rekayasa Mesin","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-08-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133437633","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}
京公网安备 11010802042870号
京ICP备2023020795号-1
扫码关注我们
求助内容：
应助结果提醒方式：