Pub Date : 2023-09-20DOI: 10.30596/rmme.v6i2.16316
In micro, small and medium enterprises in coffee grinding and coffee powder dosing. We still see a lot of things manually using measuring spoons and scales, in large quantities it takes a long time to measure. So that the coffee grinder and coffee powder measurer are designed in one machine with a smaller and simpler size, where there are two processes, namely the coffee grinder and the coffee powder measurer. The shaft of the blade of the coffee grinder is designed to have a diameter of 15 mm using bearing number 6002. By using four cutting blades with coffee cutting knife dimensions, 25 mm long and 6 mm wide. In the grinding machine, the coffee is ground into powder with a machine capacity of 73.8 kg/hour. After becoming powder, there is a process in the measuring machine, the coffee powder is measured with the same mass in each package with a machine capacity of 73.8 kg/hour. The driving motor used for the coffee grinder and measuring machine is 2 HP. The rotation speed is 1,400 rpm, with the motor type ML90S-2.
{"title":"Perancangan Mesin Penggiling Kopi Dan Penakar Bubuk Kopi Untuk Usaha Mikro Kecil Menengah","authors":"","doi":"10.30596/rmme.v6i2.16316","DOIUrl":"https://doi.org/10.30596/rmme.v6i2.16316","url":null,"abstract":"In micro, small and medium enterprises in coffee grinding and coffee powder dosing. We still see a lot of things manually using measuring spoons and scales, in large quantities it takes a long time to measure. So that the coffee grinder and coffee powder measurer are designed in one machine with a smaller and simpler size, where there are two processes, namely the coffee grinder and the coffee powder measurer. The shaft of the blade of the coffee grinder is designed to have a diameter of 15 mm using bearing number 6002. By using four cutting blades with coffee cutting knife dimensions, 25 mm long and 6 mm wide. In the grinding machine, the coffee is ground into powder with a machine capacity of 73.8 kg/hour. After becoming powder, there is a process in the measuring machine, the coffee powder is measured with the same mass in each package with a machine capacity of 73.8 kg/hour. The driving motor used for the coffee grinder and measuring machine is 2 HP. The rotation speed is 1,400 rpm, with the motor type ML90S-2.","PeriodicalId":53345,"journal":{"name":"Jurnal Energi Dan Manufaktur","volume":"166 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136378720","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 : 2023-09-20DOI: 10.30596/rmme.v6i2.14920
The rapid development of technology and science produces renewable versatile ideas and products. This study examines the use of coffee grounds as filler for polymer composites. The polymer used is a polypropylene thermoplastic polymer. The use of spent coffee grounds can reduce environmental waste. The oil content in coffee grounds is hydrophobic, while the polypropylene matrix itself is hydrophilic. The purpose of extracting coffee grounds is to remove the oil content in coffee grounds, with reduced oil and water content, the adhesion between the polypropylene surface and the coffee grounds will be better. The manufacture of polymer composites uses a Manual Forming Machine (MFM) with a variety of additions of extracted coffee grounds to polypropylene. The results of the study stated that the extraction treatment on coffee grounds increased the values of tensile strength, impact strength, and flow rate compared to the addition of coffee grounds without extraction, but variations in the addition of coffee grounds decreased the values of tensile strength, impact strength and flow rate. The highest variation in the polypropylene matrix composite with the addition of 5% coffee grounds waste extraction resulted in a tensile strength of 20.22 MPa, an impact strength of 2.398 kJ/m², and a flow rate value of 8.48 g/10 minutes. The extraction process removes the oil content. This is evidenced by the loss of ester groups in the functional group test results of the extracted coffee grounds waste.
{"title":"Pengaruh Perlakuan Ekstraksi Limbah Ampas Kopi terhadap Sifat Mekanis Komposit Bermatriks Polipropilena","authors":"","doi":"10.30596/rmme.v6i2.14920","DOIUrl":"https://doi.org/10.30596/rmme.v6i2.14920","url":null,"abstract":"The rapid development of technology and science produces renewable versatile ideas and products. This study examines the use of coffee grounds as filler for polymer composites. The polymer used is a polypropylene thermoplastic polymer. The use of spent coffee grounds can reduce environmental waste. The oil content in coffee grounds is hydrophobic, while the polypropylene matrix itself is hydrophilic. The purpose of extracting coffee grounds is to remove the oil content in coffee grounds, with reduced oil and water content, the adhesion between the polypropylene surface and the coffee grounds will be better. The manufacture of polymer composites uses a Manual Forming Machine (MFM) with a variety of additions of extracted coffee grounds to polypropylene. The results of the study stated that the extraction treatment on coffee grounds increased the values of tensile strength, impact strength, and flow rate compared to the addition of coffee grounds without extraction, but variations in the addition of coffee grounds decreased the values of tensile strength, impact strength and flow rate. The highest variation in the polypropylene matrix composite with the addition of 5% coffee grounds waste extraction resulted in a tensile strength of 20.22 MPa, an impact strength of 2.398 kJ/m², and a flow rate value of 8.48 g/10 minutes. The extraction process removes the oil content. This is evidenced by the loss of ester groups in the functional group test results of the extracted coffee grounds waste.","PeriodicalId":53345,"journal":{"name":"Jurnal Energi Dan Manufaktur","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136379759","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 : 2023-09-20DOI: 10.30596/rmme.v6i2.14224
Study of power flow analysis to obtain information about the flow of power or voltage in an electric power system. As time goes by and the number of tourists on Pandang Island, especially in the development and change sector, will also increase, the amount of burden incurred will also increase, so that a good initial design is no longer suitable for the current load. For this reason, it is necessary to analyze the power flow in order to determine the condition of the electric power system. The benefits of this research are also for planning evaluation if there will be additional burden innovations. In this study, ETAP Power Station 19.0 software was used using Newton Raphson for power flow simulation. The results obtained in the Etap simulation are 37% generating load with a total active power of 10.35 KW, reactive power of 6.85 Kvar, and apparent power of 12.42 KVA. This research also increases the load by 4,800 watts, where the photovoltaic generator must increase the photovoltaic capacity from the previous 10.26 kw to 13.29 kw, therefore solar cell panels will be added as many as 8 panels.
研究潮流分析，以获得电力系统中功率或电压的流动信息。随着时间的推移和在盘东岛的游客数量，特别是在开发和变化部门，也会增加，所产生的负担量也会增加，以至于一个好的初始设计不再适合目前的负荷。为此，有必要对潮流进行分析，以确定电力系统的状态。这项研究的好处也可用于规划评价，如果会有额外的负担创新。本研究使用ETAP Power Station 19.0软件，采用Newton Raphson进行潮流模拟。Etap仿真的结果为:发电负荷为37%，总有功功率为10.35 KW，无功功率为6.85 Kvar，视在功率为12.42 KVA。本研究还增加了4800瓦的负荷，其中光伏发电机必须将光伏容量从之前的10.26千瓦增加到13.29千瓦，因此太阳能电池板将增加多达8块。
{"title":"Analisis Aliran Daya Pembangkit Hybrid (Photovoltaic/Diesel) Pada Menara Mercusuar Di Pulau Pandang","authors":"","doi":"10.30596/rmme.v6i2.14224","DOIUrl":"https://doi.org/10.30596/rmme.v6i2.14224","url":null,"abstract":"Study of power flow analysis to obtain information about the flow of power or voltage in an electric power system. As time goes by and the number of tourists on Pandang Island, especially in the development and change sector, will also increase, the amount of burden incurred will also increase, so that a good initial design is no longer suitable for the current load. For this reason, it is necessary to analyze the power flow in order to determine the condition of the electric power system. The benefits of this research are also for planning evaluation if there will be additional burden innovations. In this study, ETAP Power Station 19.0 software was used using Newton Raphson for power flow simulation. The results obtained in the Etap simulation are 37% generating load with a total active power of 10.35 KW, reactive power of 6.85 Kvar, and apparent power of 12.42 KVA. This research also increases the load by 4,800 watts, where the photovoltaic generator must increase the photovoltaic capacity from the previous 10.26 kw to 13.29 kw, therefore solar cell panels will be added as many as 8 panels.","PeriodicalId":53345,"journal":{"name":"Jurnal Energi Dan Manufaktur","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136378713","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 : 2023-09-20DOI: 10.30596/rmme.v6i2.16311
The method of calculating the volume of fuel oil using standard 15⁰ C is one of the methods used internationally in calculating the volume of handover transactions. To standardize the calculation of fuel volume in various weather conditions, there are several fuel calculation methods, namely the Observed calculation method, th calculation method in standard 15⁰ C, the calculation method in barrels and the calculation method in long tons. For the calculation method that is suitable for use in Indonesia is the standard volume calculation method of 15⁰ C, so that in extreme weather conditions or temperature differences, the volume calculation can still be accommodated even though the difference is very significant. In this case, we take a sample calculation of the volume of MFO fuel oil through the Moto Tanker at the Belawan PLTU Jetty Port. From the measurement results, the overall volume was 4,802,983 liters of Observed, and at a standard volume of 15⁰ C, a volume of 4,747,268 liters of standard 15⁰ C was obtained. From these results, the difference between the Observed volume and the standard volume of 15⁰ C was 55,715 liters or equivalent to 1.16% of the volume Observed. So it can be concluded that the standard volume value of 15⁰ C is 1.16% smaller than the Observed volume and the standard volume of 15⁰ C will always be lower than the Observed volume. For this reason, the standard volume calculation method of 15⁰ C is a very suitable method for calculating the volume of fuel oil.
{"title":"Studi Perhitungan Volume Bahan Bakar Minyak Menggunakan Metode Perhitungan Liter Standar 15 derajat Celsius Pada Motor Tanker","authors":"","doi":"10.30596/rmme.v6i2.16311","DOIUrl":"https://doi.org/10.30596/rmme.v6i2.16311","url":null,"abstract":"The method of calculating the volume of fuel oil using standard 15⁰ C is one of the methods used internationally in calculating the volume of handover transactions. To standardize the calculation of fuel volume in various weather conditions, there are several fuel calculation methods, namely the Observed calculation method, th calculation method in standard 15⁰ C, the calculation method in barrels and the calculation method in long tons. For the calculation method that is suitable for use in Indonesia is the standard volume calculation method of 15⁰ C, so that in extreme weather conditions or temperature differences, the volume calculation can still be accommodated even though the difference is very significant. In this case, we take a sample calculation of the volume of MFO fuel oil through the Moto Tanker at the Belawan PLTU Jetty Port. From the measurement results, the overall volume was 4,802,983 liters of Observed, and at a standard volume of 15⁰ C, a volume of 4,747,268 liters of standard 15⁰ C was obtained. From these results, the difference between the Observed volume and the standard volume of 15⁰ C was 55,715 liters or equivalent to 1.16% of the volume Observed. So it can be concluded that the standard volume value of 15⁰ C is 1.16% smaller than the Observed volume and the standard volume of 15⁰ C will always be lower than the Observed volume. For this reason, the standard volume calculation method of 15⁰ C is a very suitable method for calculating the volume of fuel oil.","PeriodicalId":53345,"journal":{"name":"Jurnal Energi Dan Manufaktur","volume":"41 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136378717","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 : 2023-09-20DOI: 10.30596/rmme.v6i2.16551
Hydraulic press machine is a tool used for work that requires a compressive action force. The stress distribution that occurs in this study will be determined in the development of a press machine under a state of pressing with a load of 20 tons. Researchers use Finite Element Analysis (FEA) to generate data on the stress circulation in the engine construction. The research objectives: (1) Calculate the hydraulic pressure strength in theory, (2) Calculate the mechanical stress in the hydraulic press construction manually using the ANSYS R15.0 software, (3) Calculate the strength of the hydraulic press construction manually and using the ANSYS R15 software. .0. In this review, FEA estimation is completed with the help of Ansys Workbench R15.0 programming. The information load comes from hydraulic pressure. The inspection strategy utilizes FEA with the type of underlying structural analysis. FEA simulation results stated, the maximum stress that occurs in the table is 98.646 MPa and the maximum deformation is 0.21613 mm. The results of Ansys analysis stated that the maximum stress that occurs on the table is 98.646 MPa and the maximum deformation is 0.21613 mm. Considering the Tresca hypothesis, it is found that the stresses and deformations that occur are below the standard for structural failure. So that the frame of the hydraulic press is safe for use in a load of 20 tons.
{"title":"Analisis Tegangan Mekanik Pada Mesin Press Hidrolik Dengan Beban 20 Ton","authors":"","doi":"10.30596/rmme.v6i2.16551","DOIUrl":"https://doi.org/10.30596/rmme.v6i2.16551","url":null,"abstract":"Hydraulic press machine is a tool used for work that requires a compressive action force. The stress distribution that occurs in this study will be determined in the development of a press machine under a state of pressing with a load of 20 tons. Researchers use Finite Element Analysis (FEA) to generate data on the stress circulation in the engine construction. The research objectives: (1) Calculate the hydraulic pressure strength in theory, (2) Calculate the mechanical stress in the hydraulic press construction manually using the ANSYS R15.0 software, (3) Calculate the strength of the hydraulic press construction manually and using the ANSYS R15 software. .0. In this review, FEA estimation is completed with the help of Ansys Workbench R15.0 programming. The information load comes from hydraulic pressure. The inspection strategy utilizes FEA with the type of underlying structural analysis. FEA simulation results stated, the maximum stress that occurs in the table is 98.646 MPa and the maximum deformation is 0.21613 mm. The results of Ansys analysis stated that the maximum stress that occurs on the table is 98.646 MPa and the maximum deformation is 0.21613 mm. Considering the Tresca hypothesis, it is found that the stresses and deformations that occur are below the standard for structural failure. So that the frame of the hydraulic press is safe for use in a load of 20 tons.","PeriodicalId":53345,"journal":{"name":"Jurnal Energi Dan Manufaktur","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136378719","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 : 2023-09-20DOI: 10.30596/rmme.v6i2.14895
Buluhcina is one of the villages in Siak Hulu, Kampar District, Riau Province. The natural wealth potential in Buluhcina includes: (1) several villagers develop cage fish cultivation; (2) the river along the village as a natural potential has lots of fish needed by the community; and (3) lakes and swamps that have the potential to be developed for new jobs. From the community service activities in Buluhcina, it was concluded that: (1) this fish feed molding machine is capable of producing fish feed, the feeds is produced from the machine must be dried by conventional drying (the heat from the sun). (2) Running test for the production of fish feeds that have been made are used as samples of fish feed developed in Buluhcina. Operational training activities for produce the alternative fish feed have been successfully carried out in Buluhcina.
{"title":"Mesin Pencetak Pakan Ikan Alternatif Bagi Masyarakat Desa Buluhcina, Kecamatan Siak Hulu, Kabupaten Kampar","authors":"","doi":"10.30596/rmme.v6i2.14895","DOIUrl":"https://doi.org/10.30596/rmme.v6i2.14895","url":null,"abstract":"Buluhcina is one of the villages in Siak Hulu, Kampar District, Riau Province. The natural wealth potential in Buluhcina includes: (1) several villagers develop cage fish cultivation; (2) the river along the village as a natural potential has lots of fish needed by the community; and (3) lakes and swamps that have the potential to be developed for new jobs. From the community service activities in Buluhcina, it was concluded that: (1) this fish feed molding machine is capable of producing fish feed, the feeds is produced from the machine must be dried by conventional drying (the heat from the sun). (2) Running test for the production of fish feeds that have been made are used as samples of fish feed developed in Buluhcina. Operational training activities for produce the alternative fish feed have been successfully carried out in Buluhcina.","PeriodicalId":53345,"journal":{"name":"Jurnal Energi Dan Manufaktur","volume":"30 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136379764","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 : 2023-09-20DOI: 10.30596/rmme.v6i2.15379
The use of solar panel systems as solar energy utilization has become an attractive solution in order to reduce the use of fossil energy for electricity conversion raw materials. A solar Tracker system is used to increase the efficiency of solar panels by facing the solar panels to the angle of incidence of sunlight. This research aims to design the optimum angle that will be applied to the solar tracker system at University of Singaperbangsa Karawang. This study uses the simulation method of PVsyst software to analyze the performance of solar panel systems at various variations of tilt angle and azimuth. This research involves two optimum angle variations (5° and 9°), as well as an azimuth direction of 0° (system facing North) that will be applied to a static solar panel system and a solar tracker system. The collected sunlight data was inputted from the Meteonorm 8.0 database. The results of this study inform that the solar tracker system (Tilt Angel 5°) gets the most optimal energy compared to the other three systems, with the energy produced amounting to 247.92 kWh / year, and gets the smallest percentage of lost energy which is 7.46%. Following up on this research, it is necessary to combine research methods to determine the exact position of the Tilt Angel and Azimuth, then direct application is needed to compare the accuracy of the data obtained from the simulation.
{"title":"Perancangan Sudut Panel Surya Untuk Sistem Solar Tracker Di Kabupaten Karawang Menggunakan Metode Simulasi PVsyst","authors":"","doi":"10.30596/rmme.v6i2.15379","DOIUrl":"https://doi.org/10.30596/rmme.v6i2.15379","url":null,"abstract":"The use of solar panel systems as solar energy utilization has become an attractive solution in order to reduce the use of fossil energy for electricity conversion raw materials. A solar Tracker system is used to increase the efficiency of solar panels by facing the solar panels to the angle of incidence of sunlight. This research aims to design the optimum angle that will be applied to the solar tracker system at University of Singaperbangsa Karawang. This study uses the simulation method of PVsyst software to analyze the performance of solar panel systems at various variations of tilt angle and azimuth. This research involves two optimum angle variations (5° and 9°), as well as an azimuth direction of 0° (system facing North) that will be applied to a static solar panel system and a solar tracker system. The collected sunlight data was inputted from the Meteonorm 8.0 database. The results of this study inform that the solar tracker system (Tilt Angel 5°) gets the most optimal energy compared to the other three systems, with the energy produced amounting to 247.92 kWh / year, and gets the smallest percentage of lost energy which is 7.46%. Following up on this research, it is necessary to combine research methods to determine the exact position of the Tilt Angel and Azimuth, then direct application is needed to compare the accuracy of the data obtained from the simulation.","PeriodicalId":53345,"journal":{"name":"Jurnal Energi Dan Manufaktur","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136378716","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 : 2023-09-20DOI: 10.30596/rmme.v6i2.15818
The study conducted experimental investigations on the burning rate of crude kapuk oil droplets by incorporating bio-additives derived from eucalyptus oil. The bio-additive concentration of eucalyptus oil added to the kapuk oil was 100 ppm and 300 ppm, respectively. The droplet combustion method was chosen to maximize the contact area between the air and fuel, thereby enhancing the reactivity of fuel molecules. The findings revealed that the cineol compounds present in eucalyptus oil exhibit aromatic properties and possess an asymmetrical carbon chain geometry. This characteristic has the potential to facilitate effective collisions among fuel molecules, thereby promoting combustion. This was evident from the observed increase in the burning rate. Furthermore, the observations indicated that the highest burning rate was achieved when both bio-additives were 300 ppm. These results highlight the positive impact of incorporating eucalyptus oil as a bio-additive in crude kapuk oil. The aromatic nature and unique geometric structure of cineol compounds contribute to the fuel's increased reactivity and enhanced combustion performance. By utilizing bio-additives, such as eucalyptus oil, at an optimal concentration, it is possible to further improve kapuk oil's burning characteristics and overall performance as a biofuel. These findings provide valuable insights into the development of more efficient and sustainable alternative energy sources. By understanding the molecular aspects and effects of bio-additives, researchers can continue to explore and optimize the utilization of biofuels, such as crude kapuk oil, for a greener and more environmentally friendly energy future.
{"title":"Peran Minyak Kayu Putih Terhadap Karakteristik Pembakaran Minyak Kapuk Sebagai Bahan Bakar Alternatif","authors":"","doi":"10.30596/rmme.v6i2.15818","DOIUrl":"https://doi.org/10.30596/rmme.v6i2.15818","url":null,"abstract":"The study conducted experimental investigations on the burning rate of crude kapuk oil droplets by incorporating bio-additives derived from eucalyptus oil. The bio-additive concentration of eucalyptus oil added to the kapuk oil was 100 ppm and 300 ppm, respectively. The droplet combustion method was chosen to maximize the contact area between the air and fuel, thereby enhancing the reactivity of fuel molecules. The findings revealed that the cineol compounds present in eucalyptus oil exhibit aromatic properties and possess an asymmetrical carbon chain geometry. This characteristic has the potential to facilitate effective collisions among fuel molecules, thereby promoting combustion. This was evident from the observed increase in the burning rate. Furthermore, the observations indicated that the highest burning rate was achieved when both bio-additives were 300 ppm. These results highlight the positive impact of incorporating eucalyptus oil as a bio-additive in crude kapuk oil. The aromatic nature and unique geometric structure of cineol compounds contribute to the fuel's increased reactivity and enhanced combustion performance. By utilizing bio-additives, such as eucalyptus oil, at an optimal concentration, it is possible to further improve kapuk oil's burning characteristics and overall performance as a biofuel. These findings provide valuable insights into the development of more efficient and sustainable alternative energy sources. By understanding the molecular aspects and effects of bio-additives, researchers can continue to explore and optimize the utilization of biofuels, such as crude kapuk oil, for a greener and more environmentally friendly energy future.","PeriodicalId":53345,"journal":{"name":"Jurnal Energi Dan Manufaktur","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136378711","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 : 2023-09-20DOI: 10.30596/rmme.v6i2.15916
Dump Truck is one of the heavy equipment that functions to transport materials such as soil and coal. For this machine to always be in the best condition, periodic maintenance is required, one of which is overhaul maintenance. There are various types of overhaul work on the Komatsu HD 785-7 dump truck unit. Even though there was good planning before the work started, there were still problems with the duration of the Komatsu HD 785-7 overhaul dump truck work which was not in accordance with the initial plan and resulted in the company as a heavy equipment rental service provider losing money. The purpose of this study is to analyze the causes of the duration of work on the Komatsu HD 785-7 dump truck overhaul and provide a solution as a recommendation or reference for the company. The method used is descriptive quantitative method. Descriptive quantitative methods are used to understand an event regarding the duration of an overhaul that is not according to plan in depth, by describing and explaining the characteristics of the incident. Collecting data by interviewing workers, observing in the field, distributing questionnaires and archives of previous overhaul work documents. The results of the study show that the main cause of the duration of work that is not according to plan is the arrival of spare parts or major components not according to schedule, and the addition of work accompanied by the addition of spare parts. The solution provided is to schedule joint inspection work to be carried out earlier with the aim of being able to find out the additional spare parts needed so that the ordering time can be made earlier and the waiting time for spare parts supply can be reduced.
{"title":"Analisis Penyebab dan Solusi Masalah Durasi Overhaul Dump Truck Komatsu HD 785-7 Tidak Sesuai Rencana","authors":"","doi":"10.30596/rmme.v6i2.15916","DOIUrl":"https://doi.org/10.30596/rmme.v6i2.15916","url":null,"abstract":"Dump Truck is one of the heavy equipment that functions to transport materials such as soil and coal. For this machine to always be in the best condition, periodic maintenance is required, one of which is overhaul maintenance. There are various types of overhaul work on the Komatsu HD 785-7 dump truck unit. Even though there was good planning before the work started, there were still problems with the duration of the Komatsu HD 785-7 overhaul dump truck work which was not in accordance with the initial plan and resulted in the company as a heavy equipment rental service provider losing money. The purpose of this study is to analyze the causes of the duration of work on the Komatsu HD 785-7 dump truck overhaul and provide a solution as a recommendation or reference for the company. The method used is descriptive quantitative method. Descriptive quantitative methods are used to understand an event regarding the duration of an overhaul that is not according to plan in depth, by describing and explaining the characteristics of the incident. Collecting data by interviewing workers, observing in the field, distributing questionnaires and archives of previous overhaul work documents. The results of the study show that the main cause of the duration of work that is not according to plan is the arrival of spare parts or major components not according to schedule, and the addition of work accompanied by the addition of spare parts. The solution provided is to schedule joint inspection work to be carried out earlier with the aim of being able to find out the additional spare parts needed so that the ordering time can be made earlier and the waiting time for spare parts supply can be reduced.","PeriodicalId":53345,"journal":{"name":"Jurnal Energi Dan Manufaktur","volume":"61 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136379763","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 : 2023-09-20DOI: 10.30596/rmme.v6i2.16190
Y aw Misalignment condition has detrimental effects on the performance and efficiency of hydrokinetic turbines. This phenomenon occurs when the direction of water flow hitting the turbine blades is not aligned with the turbine's movement direction. In this research, an analysis is conducted on the performance of a hydrokinetic turbine equipped with a diffuser shroud under Yaw Misalignment conditions, considering variations in water flow velocity. The dataset used in this study consists of water flow velocity data, yaw angles, tip speed ratio (TSR), and power coefficient (Cp) of a 19.8 cm diameter horizontal-axis hydrokinetic turbine operating under Yaw Misalignment conditions. Experiments were conducted at three water flow velocity levels: 0.7 m/s, 0.9 m/s, and 1.1 m/s. Additionally, yaw angle variations were applied ranging from 0° to 25° at 5° intervals. Data analysis involved the application of Pearson correlation analysis and descriptive statistical analysis to identify the maximum Cp values. The analysis results indicate that the highest maximum Cp value is 0.711, with a tip speed ratio (TSR) of 4.33, achieved at a yaw angle of 0° and a water flow velocity of 0.9 m/s. This indicates that under these conditions, the turbine reaches its peak performance in converting water flow energy into mechanical power.
{"title":"Analisis Kinerja Turbin Hidrokinetik Dengan Selubung Diffuser Pada Kondisi Yaw Misalignment Berdasarkan Variasi Kecepatan Aliran Air","authors":"","doi":"10.30596/rmme.v6i2.16190","DOIUrl":"https://doi.org/10.30596/rmme.v6i2.16190","url":null,"abstract":"Y aw Misalignment condition has detrimental effects on the performance and efficiency of hydrokinetic turbines. This phenomenon occurs when the direction of water flow hitting the turbine blades is not aligned with the turbine's movement direction. In this research, an analysis is conducted on the performance of a hydrokinetic turbine equipped with a diffuser shroud under Yaw Misalignment conditions, considering variations in water flow velocity. The dataset used in this study consists of water flow velocity data, yaw angles, tip speed ratio (TSR), and power coefficient (Cp) of a 19.8 cm diameter horizontal-axis hydrokinetic turbine operating under Yaw Misalignment conditions. Experiments were conducted at three water flow velocity levels: 0.7 m/s, 0.9 m/s, and 1.1 m/s. Additionally, yaw angle variations were applied ranging from 0° to 25° at 5° intervals. Data analysis involved the application of Pearson correlation analysis and descriptive statistical analysis to identify the maximum Cp values. The analysis results indicate that the highest maximum Cp value is 0.711, with a tip speed ratio (TSR) of 4.33, achieved at a yaw angle of 0° and a water flow velocity of 0.9 m/s. This indicates that under these conditions, the turbine reaches its peak performance in converting water flow energy into mechanical power.","PeriodicalId":53345,"journal":{"name":"Jurnal Energi Dan Manufaktur","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136378718","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：