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    PENYELARASAN KURIKULUM PRODI PTM FKIP UNS KONSENTRASI OTOMOTIF DENGAN DUNIA INDUSTRI

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    The speed of the times in terms of technology and people's behavior patterns makes people around the world interconnected. This makes the competition for jobs in society increase. Everyone who wants to survive the competition for a job must have the ability and skills. In this case, the world of education is also influential, where education is not only to seek knowledge but to find or improve skills that are useful for competing for a job. In technological advances, especially in the automotive sector, the world of education, especially vocational education, must always follow the development of technology in the industry. The PTM Study Program should have a curriculum that is in line with the work or competencies in the industry so that ptm study program graduates can compete in the world of work. This study aims to find out whether the curriculum of the PTM FKIP UNS study program has aligned with the competencies needed by the industrial world. This research is a qualitative descriptive research. The source of this research data is documents from industry and the Mechanical Engineering Education Study Program. Purpose sampling data retrieval technique. Data collection was carried out with documentation and finalized with FGD (Focus Group Discussion). There are three data collection points, namely Toyota Nasmoco Ringroad, Daihatsu Adi Sucipto, and Suzuki Pabelan. The source of data from the draft work documents in the industry is the RPS matkul in the automotive field of the PTM Study Program, vehicle inspection sheets, FGD minutes, and periodic service books for gasoline engines and diesel engines. The validity test technique used is data triangulation. Data analysis using content analysis techniques (Analysis content). First, the competencies that have been taught in the PTM Study Program, especially in the automotive field, have been in line with the competencies or jobs that exist in the industry. In the Focus Group Discussion process, the stake holders stated that the PTM Study Program curriculum is in line with the industry and provides input on curriculum development to pursue industrial technology that is always developing at all times in the form of electric car competencies and conventional competencies are only given at a glance and prioritize injection competencies

    PENGARUH PRE-HEATING PADA PIROLISIS BIOMASSA LIMBAH AREN TERHADAP CHAR PADA REAKTOR HORIZONTAL MODEL CONTINUOUS

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    Utilization of palm waste in the form of charcoal briquettes makes the fuel more efficient and in a better form. Thus, charcoal briquette fuel with sugar palm waste is a solution or alternative to solving the waste problem caused by palm trees. This research was conducted with the aim of knowing the effect of pre-heating on the pyrolysis process of palm sugar waste biomass on gas fraction, bio-oil and char. This study used an experimental method conducted in the Mechanical Engineering Education Laboratory of Sebelas Maret University. The research variable is the variation of pre-heating time in the pyrolysis of palm waste biomass against gas fraction, bio-oil and char in a continuous model horizontal reactor. The result of this study is that pre-heating has an effect on the gas fraction. The longer the pre-heating process is carried out, the lower the amount of O2 gas produced. Pre-heating affects the char, so the quality and quantity can be measured

    PENGARUH VARIASI SUDUT WINGLET DAN SUDUT PITCH TERHADAP CUT IN SPEED PADA TURBIN ANGIN POROS HORIZONTAL

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    Horizontal axis wind turbine is to convert mechanical energy in the wind and next change to electrical energy from generator. In this study done using Horizontal axis wind turbine type NACA 4412 for determine winglet angle variation on the end of blade and used, with winglet angle variation 150, 300, 450, 600 with the addition of pitch angle 100, 120, 140, 160, 180 and five blade. The purpose of this study is to find out how much influence the variation in winglet angle and pitch angle on the cut in speed produced by horizontal wind turbines. The method used in this study is to use the experimental method. samples used in this study using the NACA 4412 Horizontal wind turbine.The best cut in speed obtained in this study was obtained by the variation in winglet angle 15, where the cut in speed values obtained against the variation in pitch angle were 100 (0.91 m/s), 120 (0.77 m/s), 140 (0.77 m/s), 160 (0.71 m/s), and 180 (0.73 m/s) and and pitch angle variation 18, where the cut in speed values obtained against winglet angle variations are 600 (0.82 m/s), 450 (0.84 m/s), 300 (0.8 m/s), and 150 (0.73 m/s)

    PENGARUH PENGGUNAAN VARIASI BERAT ROLLER TERHADAP KONSUMSI BAHAN BAKAR SEPEDA MOTOR MATIC 110 CC

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    In the current era, automatic motorbikes are the most popular motorbikes and are most widely used for everyday purposes. The motorcycle population always increases by around 5 million units every year. Of this amount, around 70% are motorbikes of the matic type, aka scooters. One trick that is usually used by automatic motorbike lovers to upgrade the characteristics of their automatic motorbike is to replace a part called the CVT roller. The aims of this study were: (1) To find out the effect on fuel consumption produced by a 110cc automatic motorcycle using variations in roller weight. (2) Knowing the effect on fuel consumption produced by 110cc automatic motorbikes using variations of engine speed. (3) Knowing the effect of using roller weight variations at RPM variations on fuel consumption on 110cc automatic motorcycles. The research method used is experimental. The research data was obtained by measuring the Honda BeAT New 2018 motorcycle sample. The independent variable is roller weight Variation and Variation of engine rotation. The dependent variable is fuel consumption. The data obtained were then analyzed using quantitative descriptive techniques by describing them in the form of graphs and tables. The results of this study are: (1) The use of variations roller weight 10, 12, and 14 grams have an effect on fuel consumption. The use of a roller that is heavier or lighter than standard (12 grams) has the effect of producing a more different fuel consumption. (2) Variations in engine speed (3500, 5000 and 6500 RPM) have an influence on fuel consumption. Each increase in engine speed, the fuel consumption will also increase. This happens because the higher the engine speed, the higher the amount of fuel burned in the combustion chamber. (3) Has the effect of fuel consumption on the use of roller weight variations and variations of engine speed. This effect lies in the average fuel consumption using less standard rollers when compared to using lighter or heavier rollers. Overall, if you take the best, then the right choice is a standard 12 grams roller, because it has the lowest average fuel consumption value

    Studi Penelitian Panjang Kritis Serat Alam Dengan Perlakuan Perendaman Natrium Hidroksida

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    The purpose of this study was to determine the critical length of palm fiber, kenaf fiber, pineapple fiber, agave fiber, and coconut fiber with NaOH immersion treatment. This study was determine the effect of NaOH immersion treatment on the critical length of fiber. This research is an experimental exploratory research. The independent variables in this study were palm fiber, kenaf fiber, pineapple fiber, agave fiber, and coconut fiber with the dependent variable is the critical fiber length. To find the critical length of fiber using single fiber tensile test and single fiber pull out test. The data obtainde from the test results are then analyzed using formula equation to determine the critical length of each fiber. Data analysis techniques using quantitative descriptive analysis techniques. The results showed that the critical length of palm fiber, kenaf fiber, agave fiber, and coconut fiber with NaOH immersion treatment was shorter than the critical length of fiber without NaOH immersion treatment. Agave fiber has the shortest critical fiber length. The critical length of the fiber with NaOH immersion treatment are palm fiber 4.6 mm, kenaf fiber 5.4 mm, pineapple fiber 3.6 mm, agave fiber 2.2 mm, and coconut fiber 3.0 mm.

    Penerapan PICSIMLab Simulator Sebagai Upaya Peningkatan Aktivitas Dan Hasil Belajar Peserta Didik Kelas XII Teknik Ototronik 1 SMKN 1 Sawit

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    This study aims to determine and describe (1) the application of the Project Based Learning learning model assisted by the PICSIMLab simulator software in increasing student activity in the subject of Electronic Control System Design on Vehicles in class XII Autotronic Engineering 1 SMKN 1 Sawit (2) Application of Project Based learning models PICSIM Lab simulator software assisted learning in improving student learning outcomes in the subject of Electronic Control System Design for Vehicles in class XII Autotronic Engineering 1 SMKN 1 Sawit. This research is a Classroom Action Research and conducted in two cycles which aims to determine the management of learning by the teacher, student activities, student learning outcomes, and the responses of class XII students of Autotronic Engineering at SMKN 1 Sawit. This study consisted of two cycles, each cycle consisting of planning, action, observation, and reflection. The implementation of the action uses computer-assisted interactive media with the question-and-answer learning method and discussion. The results showed that the application of the PICSIMLab simulator could increase the activity and learning outcomes of class XII students of Autotronic Engineering 1 in the subject of Electronic Control System Design on Vehicles. The results of the first cycle of action were compared with the results of the second cycle of action. Student activities that appear from all activities, which appear according to indicators have increased, in the first cycle as much as 75%, in the second cycle 87.5%. The average number of student activities in the first cycle was 64.5%, in the second cycle it was 85.3%. The assessment of student learning outcomes in this study was in the form of a post test. Classical learning outcomes in each cycle 79.67% and 92.53%

    Pengaruh Model Konstruktivistik Terhadap Pengetahuan dan Respon Siswa di Masa Pandemik COVID-19 Untuk Hasil Belajar Siswa SMK

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    Konstruktivisme menjadi pendekatan yang populer dan berkembang dalam praktik pembelajaran saat ini. Hal tersebut tidak lepas dari teori-teori mendasarinya. Penelitian ini bertujua untuk mengetahui seberapa besar pengaruh model konstrukvistik terhadap pembelajaran siswa/i di masa pandemik COVID-19 tahun ajaran 2020/2021. Subyek dalam penelitian ini adalah penelitian tindakan kelas ini adalah siswa kelas X yang berjumlah 60 siswa/i. Penelitian terdiri dari aspek perencanaan,tindakan, observasi dan refleksi. Data penelitian diperoleh dengan metode tes dan observasi. Hasil Penelitian menunjukkan bahwa nilai rata-rata siswa dalam model konstruktivisme pada kegiatan pembelajaran adalah 56%  kemampuan siswa dalam menjalankan suatu kegiatan pembelajaran dirumah. Dari hasil tersebut dapat disimpulkan bahwa siswa/i dalam pembelajaran yang dilakukan pada masa pandemik ini mengalami penurunan dalam hasil belajar siswa dan guru berperan penting untuk selalu mengembangkan dan berinovasi dalam membuat pendekatan dan kegiatan belajar mengajar yang efektif

    Implementasi Pengetahuan, Persepsi, Dan Penerapan Kesehatan Dan Keselamatan Kerja (K3) Pada Pembelajaran Praktik Program Keahlian Teknik Pemesinan Dan Teknik Ototronik Di SMK Negeri 2 Karanganyar

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    Abstract               This study aims to determine the level of knowledge, perception, and application of Occupational Health  and Safety(OHS) in class XII students of the Mechanical Engineering and Autotronic Engineering expertise program. This research used descriptive quantitative research methods. Retrieval of data using test instruments and questionnaires. The population of this study was 135 students of class XII,  67 students of mechanical engineering and 68 students of autotronic engineering.              The results showed that the level of OHS knowledge of class XII students of Mechanical Engineering, 76.12%, was in the good category, 19.40% was good enough and was 4.48% not good enough. Meanwhile, in class XII,  Autotronic Engineering which was included in the good category was 75%, 17.65% was good enough, and 7.35% was not good. The highest average gain lies in the OHS Terms and Principles indicator, namely for the engineering department, 98.51% of students are in the good category and 98.53% for the auto-electronics department, 98.53% of the students are in the good category.For the level of student perception, in class XII Mechanical Engineering which is in the good category is 95.52%, 4.48% is quite good, and there are no students in the poor category. Meanwhile, the level of students' perceptions in class XII of Autotronic Engineering  which was in the good category was 98.51%, 2.99% was quite good, and no student was in the poor category. The highest average gain lies in the OHS Terms and Principles indicator, namely for the engineering department, 98.51% of students are in the good category and 98.53% for the auto-electronics department, 98.53% of the students are in the good category.For the level of application, the highest percentage of students in mechanical engineering always did 72.14%, sometimes 26.37% and students did not do 1.49%. Meanwhile, there were 70.59% of students in autotronic engineering who always did it, 27.94% of the students did sometimes, and 1.47% did not. The highest average gain lies in the indicators of cleanliness and health of the work environment where for the engineering department, 72.14% of students always apply OHS measures. Meanwhile, for the autronic department, 70.59% of students always apply OHS actions

    Pengaruh Desain Magnet Pada Rotor Generator Dan Variasi Kecepatan Angin Terhadap Energi Listrik Yang Dihasilkan Oleh Turbin Angin Sumbu Horizontal Skala Mikro

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    Energy use in Indonesia is increasing while energy reserves in Indonesia are running low. In an effort to meet energy needs in Indonesia, there must be the development of renewable energy sources by utilizing wind energy to be converted into electrical energy using a horizontal wind turbine generator. To optimize the wind turbine generator, you can change its parameters, one of which is by changing the design of the generator magnet.            The method used in this study is an experimental method, where the variables used in this study are the design of the magnet skew, the design of the interior magnet and the design of the magnet surface. This research was conducted at wind speeds of 1 m/s to 5 m/s using a wind tunnel. Tests were carried out using 12 V and 24 V lamp loads and no-load tests to determine the power generated by each generator.            The results of the research are the design of the magnet on the generator rotor and variations in wind speed affect the power produced by the wind turbine, the magnetic skew produces a power of 0.974 W, the interior magnet produces a power of 0.674 W and the surface magnet produces a power of 1.386 W. Tests without load and speed variations The wind affects the power produced by the wind turbine, where the power at the generator cannot be calculated. Tests with loading and wind speed variations affect the power produced by the wind turbine, where each loading test has various results such as when a load is given to the magnetic surface design at a wind speed of 5 m/s with a loading of 24 V producing a power of 1.386 W

    Analisis Perpindahan Kalor Pada Double Pipe Heat Exchanger Beraliran Lawan Arah Menggunakan Sirip Trapesium Dengan Fluida Cair

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    This study aims to analyze the counter flow performance of a double pipe heat exchanger using an experimental method with the influence of the flow rate of hot and cold substances. The results showed that the counter-flow double-pipe heat exchanger produced a total heat transfer coefficient of 69.229 W/m2℃. The double pipe heat exchanger produces Reynolds number of 82.17 and Nusselt number of 1.18 in hot fluids, while in cold fluids it produces Reynolds number of 4.528.42 and Nusselt number of 31.52. The double pipe heat exchanger has an effectiveness rate of 116.16%

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