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Nozel : Jurnal Pendididikan Teknik Mesin
Published by Universitas Sebelas Maret
ISSN : -     EISSN : 2656713X     DOI : https://doi.org/10.20961/nozel
Core Subject :
NOZEL : Jurnal Pendidikan Teknik Mesin is a national forum for the publication and dissemination of original work which contributes to greater scientific understanding of the main disciplines underpinning the mechanical engineering and vocational education. This international journal is dedicated to the latest advancements in mechanical engineering and vocational education. The goal of this journal is to provide a platform for scientists and academicians all over the world to promote, share, and discuss various new issues and developments in different areas of mechanical engineering and vocational education. This journal is published in the online journal, which publishes research articles, reviews, and letters in all areas of mechanical engineering and vocational education. It is a blind peer-reviewed journal, aims to provide the most complete and reliable source of information on current developments in the field. The emphasis will be on publishing quality papers rapidly and available to researchers worldwide.
Arjuna Subject : -
Articles 158 Documents
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IMPLEMENTASI BLENDED LEARNING PADA KURIKULUM MERDEKA UNTUK MENINGKATKAN HASIL BELAJAR SISWA OTOMOTIF SMK NEGERI 5 SURAKARTA Sarman, Sarman; Sidik, Rasyid
Nozel : Jurnal Pendididikan Teknik Mesin Vol 5, No 1 (2023)
Publisher : Fakultas Keguruan dan Ilmu Pendidikan Universitas Sebelas Maret Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/nozel.v5i1.71501

Abstract

The Mid Semester Score for the Fundamentals of the Automotive Engineering Program for students X TO_B for the odd semester of 2022/2023 is below the minimum mastery level. Students with scores below the minimum limit are 72.22%. Class Action Research is carried out to analyze student learning styles and present learning models that can improve student learning outcomes.The learning model presented in this study is blended learning. This research was conducted for 2 cycles, with a total of 4 face-to-face meetings. Each meeting has a focus on learning mechanical measuring instruments which are divided into caliper gauges, screw micrometers, dial indicators, and cylinder bore gauges. This research was attended by 34 students X TO_B Vocational High School 5 Surakarta in 2022/2023.The results of this study show that: 1) The blended learning model is effective in having a positive impact on increasing students' knowledge of X TO_B as evidenced by the results of the N-gain analysis; 2) The existence of innovative treatment in cycle 1 and cycle 2 learning related to optimizing the use of smartphone devices in learning, has proven to increase the effectiveness of learning by 3.24%; 3) The success of the blended learning model requires teacher control and student learning independence.
HUBUNGAN LINGKUNGAN FISIK BENGKEL DAN BUDAYA KERJA TERHADAP HASIL BELAJAR PRAKTIK PEMESINAN BUBUT SISWA KELAS XI SMK MUHAMMADIYAH 1 GONDANGREJO Fanani, Afrizal Rosyid; Harjanto, Budi; Estriyanto, Yuyun
Nozel : Jurnal Pendididikan Teknik Mesin Vol 2, No 2 (2020)
Publisher : Fakultas Keguruan dan Ilmu Pendidikan Universitas Sebelas Maret Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/nozel.v2i1.43227

Abstract

This study aims to: (1) Determine the relationship of the physical environment of the workshop on the learning outcomes of lathe machining practices of class IX students  in Vocational High School of Muhammadiyah 1 Gondangrejo; (2) Determine the relationship of students' work culture on learning outcomes of lathe machining practices of class IX students  in Vocational High School of Muhammadiyah 1 Gondangrejo; and (3) Determine the relationship of the physical environment of the workshop and work culture on the learning outcomes of lathe machining practices of class IX students  in Vocational High School of Muhammadiyah 1 Gondangrejo. This research is a quantitative study, with a research method that is ex-post facto. The variables in this study are the physical environment of the workshop and work culture as independent variables and the learning achievement of machining lathe as the dependent variable. The population in this study is class XI students of the Mechanical Engineering expertise program in Vocational High School of Muhammadiyah 1 Gondangrejo with 157 students. The sample in this study is 79 people. Retrieval of data used questionnaire and documentation methods. The data obtained were analyzed by multiple regression analysis. The results of this study are: (1) The physical environment of the workshop has a positive and significant relationship on the learning outcomes of lathe machining practices of class IX students  in Vocational High School of Muhammadiyah 1 Gondangrejo with a effective contribution of 16.6% to the high student learning outcomes (2) Work culture has a positive and significant relationship on the learning outcomes of lathe machining practices of class IX students in Vocational High School of Muhammadiyah 1 Gondangrejo with a effective contribution of 18.3% to the high student learning outcomes and (3) The physical environment of workshop and work culture has a positive and significant impact on learning achievement of lathe machining practices the learning outcomes of lathe machining practices of class IX students  in Vocational High School of Muhammadiyah 1 Gondangrejo with a effective contribution of 34.9% to the high student learning outcomes.
PENGEMBANGAN PERANGKAT PEMBELAJARAN KOMPETENSI CNC PLASMA CUTTING DI PRODI PENDIDIKAN TEKNIK MESIN Aida Rafiq, Muhammad Fikri Haikal; Estriyanto, Yuyun; Saputra, Taufik Wisnu
Nozel : Jurnal Pendididikan Teknik Mesin Vol 7, No 1 (2025)
Publisher : Fakultas Keguruan dan Ilmu Pendidikan Universitas Sebelas Maret Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/nozel.v7i1.90112

Abstract

The CNC Plasma Cutting course is an elective course for mechanical engineering education students who have an interest in deepening their knowledge in welding and cutting using machines with computer technology. The CNC Plasma Cutting practical learning that is currently being carried out is considered not optimal, because the product produced is only a sample. The aim of this research is to: Develop learning tools using practicum modules to meet the learning needs of the CNC Plasma Cutting course in the PTM FKIP UNS Study Program. The method used in this research is development using the ADDIE (Analysis-Design-Develop-Implement-Evaluate) model. The data source comes from students. This development research uses questionnaire data collection techniques. A questionnaire is a written data collection technique. This data collection was carried out to analyze needs and the module evaluation stage. The data obtained from this questionnaire is used as a reference for improving the practicum module being developed. The data analysis technique used is explained as follows. The quantitative data analysis technique in the CNC Plasma Cutting practicum module that was developed was obtained from student assessments. The questionnaire given to students was a closed questionnaire using a Likert scale. The Likert scale is used to measure students' opinions or assessments. Based on the results of the research that has been carried out, it can be concluded that the development of a CNC Plasma Cutting practicum module is very necessary to improve the quality of student learning. The needs analysis shows that this module provides clear structure and guidance, makes it easier for students to take part in practicums, and provides references that can be accessed at any time. The project-based learning method used in this module has succeeded in improving students' practical skills through real projects.
Pengaruh Penggunaan Variasi Konsentrasi Perekat Kanji Terhadap Lama Bakar RDF-5 Ampas Kopi Dan Serbuk Kayu Sengon Darmawan, Fuad Yanuar Widya; Wijayanto, Danar Susilo; Rohman, Ngatou
Nozel : Jurnal Pendididikan Teknik Mesin Vol 3, No 3 (2021)
Publisher : Fakultas Keguruan dan Ilmu Pendidikan Universitas Sebelas Maret Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/nozel.v3i3.63341

Abstract

This research aims to determine the effect of the variations use of starch adhesive on the RDF-5 burn time from coffee ground and sengon sawdust. The method used in this research is experimental. Independent variables in this research are ratio of variations in composition of the ingredients are 0:100, 30:70, 50:50, 70:30, 100:0 and variations in concentration of adhesive are 10%, 20%, 30%. Dependent variables in this research is burn time. Control variables in this research are mesh, pressing pressure, and the resulting RDF-5 dimensions. This research was conducted in the Mechanical Engineering Education Laboratory of the UNS in Campus V. Data collection of burning time using stopwatch and blower. The longest burn time was found in 100:0 composition variation and 30% adhesive concentration. The result of research showed that the longest burn time produced by RDF- 5 which uses the most starch adhesive.
PENERAPAN MODEL PEMBELAJARAN PROJECT BASED LEARNING (PJBL) MAPEL GAMBAR TEKNIK MANUFAKTUR Aryanto, Dhani
Nozel : Jurnal Pendididikan Teknik Mesin Vol 3, No 2 (2021)
Publisher : Fakultas Keguruan dan Ilmu Pendidikan Universitas Sebelas Maret Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/nozel.v3i2.53360

Abstract

This study aims to improve student activity and learning outcomes in the subject of Manufacturing Engineering Drawing class XI TPm 3. Observation Results In this subject the teacher is still actively involved in the learning process or commonly called teacher centered. In the learning process the teacher conveys learning using an LCD projector, the teacher gives instructions or examples then students imitate what is exemplified. But in the process students have difficulty following the instructions from the teacher, the teacher must repeat the instructions until the students understand. This takes up a lot of time during the learning process. So there are other topics that the teacher cannot convey to students. Teachers feel unable to deliver teaching materials optimally because of limited teaching hours.The research method used is to apply the Project Based Learning (PjBL) learning model with the subjects of class XI TPm 3 students. Data collection techniques use evaluations in the form of LKPD in which there is an evaluation of knowledge and performance.The results of the holding of students, pre-test before learning cycle 1 obtained results of 39, only a few students who mastered the function of making and modifying 2D CAD drawings. 9 students who are quite mastered and 30 students who have not mastered. After filling out the questionnaire, it turned out that the reason was that the majority of children did not know about 2D drawing with computer applications
Pengaruh Penggunaan Box Power Ignition terhadap Performa Sepeda Motor Injeksi Bagaskoro, Dimas; Saputra, Taufik Wisnu; Wijayanto, Danar Susilo
Nozel : Jurnal Pendididikan Teknik Mesin Vol 5, No 4 (2023)
Publisher : Fakultas Keguruan dan Ilmu Pendidikan Universitas Sebelas Maret Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/nozel.v5i4.77077

Abstract

This study aims to (1) determine the effect of voltage variations on the power ignition box on the torque and power of the Honda Scoopy motorcycle in 2017. (2) determine the effect of variations in the voltage on the power ignition box on the fuel consumption of the Honda Scoopy motorcycle in 2017. (3) Knowing the effect of voltage variations on the power ignition box on exhaust emissions of the Honda Scoopy motorcycle in 2017. (4) Knowing the best voltage variations on the power ignition box are on power torque, fuel consumption, and exhaust emissions of the 2017 Honda Scoopy. Engine performance, including power torque, fuel consumption, and vehicle exhaust emissions, will be obtained by the maximum vehicle engine if the combustion system works optimally. One way to maximize the combustion system is using a power ignition box. The research method used is experimental. The research data was obtained using a sample of Honda Scoopy motorcycles in 2017. The independent variable used a power ignition box with voltage variations of 14.4 V, 14.7 V, 15.0 V, 15.3 V, 15.6 V, and 15 .9 V. The dependent variable is the power torque using a Dynamometer, fuel consumption using stationary test and road test on predetermined roads, and exhaust emissions using a Gas Analyzer. The results of this study are: (1) The maximum torque is obtained at a voltage variation of 15.6 V of 9.57 N.m, an increase of 8.5% from the standard state. The maximum power is obtained at the 15.6 V voltage variation of 6.63 HP, up to 8.5% from the standard state. (2) The maximum fuel consumption for the stationary test was obtained at a voltage variation of 14.7 V of 4.25 ml/min, decreased by 0.18 ml/min. The increase in average fuel consumption is at a value of 4.55 ml/min. The maximum fuel consumption for the road test was found at a voltage variation of 14.7 V of 30 m/ml increasing to 15 m from the standard state. The average increase in fuel consumption was 24.93 m/ml from standard conditions. (3) The maximum CO (carbon monoxide) of 0.3% at a voltage variation of 14.4 V, down 0.11% from standard conditions. The maximum HC (hydro carbon) is 16.00 ppm at a voltage variation of 15.0 V, down 15.33 ppm from standard conditions. Maximum CO2 (carbon dioxide) is 2.0% at a voltage variation of 15.9 V, down 0.10% from standard conditions. The maximum O2 (oxygen) is 9.25% at a voltage variation of 15.6 V, down 3.23% from standard conditions. The best configuration for the Box Power Ignition is at a voltage of 15.3 V.Keywords: Honda Scoopy, Box Power Ignition, Torque and Power, Fuel Consumption, Exhaust Emissions.
UPAYA MENINGKATKAN MOTIVASI DAN PRESTASI BELAJAR MENGGUNAKAN MODEL NUMBERED HEADS TOGETHER (NHT) PADA SISWA KELAS XI TKR 4 SMK GANESHA TAMA BOYOLALI Khabib, Satrio; Suharno, Suharno; Rohman, Ngatou
Nozel : Jurnal Pendididikan Teknik Mesin Vol 1, No 3 (2019)
Publisher : Fakultas Keguruan dan Ilmu Pendidikan Universitas Sebelas Maret Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/nozel.v2i3.42452

Abstract

The objectives of this research are to improve: (1) the learning motivation in the Vocational Competency subject matter through the Numbered Heads Together (NHT) learning model; and (2) the learning achievement in the Vocational Competency subject matter through the Numbered Heads Together (NHT) learning model.This research used the classroom action research with two cycles. Each cycle consisted of three meeting. Each meeting lasted for 2 x 45 minutes. Its subjects were the students as many as 33 in Grade XI-Light Vehicle Engineering Program 4 of Ganesha Tama Vocational High School of Boyolali. The research was collaborative in nature among the researcher, subject matter teacher, observer, and students. It began with simulation on the subject matter teacher. The data of research were collected through observation, test, questionnaire, and documentation. The procedure of research included the following stages: (1) action planning, (2) action implementations, (3) observation and interpretation, and (4) analysis and reflection.  The result of research shows that there is an improvement of learning motivation and achievement in the Vocational Competency subject matter in terms of process and product through the application of the NHT learning model. In cycle I the learning motivation was 73.61%, and it became 77.30% in cycle II. Moreover, the number of the students who gained improvement in the learning achievement was 22 (66.67%) in cycle I, and 27 (82.00%) in cycle II.
Analisis Pengaruh Nanofluida TiO2-(Air-Propilen Glikol) Pada Sistem Pendingin Terhadap Kinerja Sistem Pendingin dan Daya Listrik yang Dihasilkan oleh Micropower Generation Santoso, M. Ferry Teguh; Saputro, Herman
Nozel : Jurnal Pendididikan Teknik Mesin Vol 7, No 4 (2025)
Publisher : Fakultas Keguruan dan Ilmu Pendidikan Universitas Sebelas Maret Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/nozel.v7i4.105161

Abstract

An The use of Micro Power Generation (MPG) or small-scale power plants based on micro combustion using the Thermoelectric Generator (TEG) converter type. This study aims to determine the performance of the TiO2 nanofluid cooling system with the basic fluid of water-propylene glycol mixture on the performance of the cooling system in this case, namely temperature and viscosity, as well as the electric power generated by MPG. The research method used is the experimental method. The variables used are variations in the concentration ratio of the mixture of water with propylene glycol which is used as the base fluid for TiO2 nanofluids in the cooling system. The variation of the ratio used for the mixture of propylene glycol and water is 25%: 75% with a total volume of 2.4 L of cooling fluid and 96 grams of nanoparticles. Tests were carried out by combustion in a double meso vortex combustor with propane gas fuel and air. Then the flame is stabilized with a mass flow meter.  The temperature of the hot side and cold side of the TEG is measured using a thermocouple to produce a temperature difference (∆T) between the two sides. While the resulting output in the form of voltage (Volt) and current (Ampere) is measured with a multimeter and then accumulated in the form of Power (Watt). The results of the study were taken on average produced by nanofluid variations with 25% propylene glycol and 75% water base fluid of 7.08 watts. The average hot side is 148.35 °C, the average cold side is 36.20 °C with the highest voltage of 9.24 V, and an electric current of 0.77 A. This shows that there is an effect of TiO2-(water-propylene glycol) nanofluid in the cooling system on the performance of the cooling system and the electric power generated by the micropower generation.
PENGARUH PENGGUNAAN ECU RACING TERHADAP KINERJA SEPEDA MOTOR 4 LANGKAH 150 CC DENGAN VARIASI OKTAN BAHAN BAKAR PERTAMAX Fardhana, Devangga Rizqi; Ranto, Ranto; Bugis, Husin
Nozel : Jurnal Pendididikan Teknik Mesin Vol 4, No 3 (2022)
Publisher : Fakultas Keguruan dan Ilmu Pendidikan Universitas Sebelas Maret Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/nozel.v4i3.72250

Abstract

Technological advances in the automotive sector have made the automotive industry issue an injection ignition system that uses the ECU which makes ignition timing and fuel injection more precise.  In this study, the replacement from the standard ECU to the Racing ECU was carried out with variations in Pertamax RON 92 and RON 98 fuels, which is expected to increase the power and torque of the engine. The research showed that use of the Standard ECU and use the Pertamax 98 fuel had more effect on torque. While, use the ECU Racing and Pertamax 98 fuel has more effect on vehicle power.
PENGEMBANGAN MEDIA PEMBELAJARAN CNC BERBASIS PERANGKAT LUNAK ANIMASI Ulinnuha, Dwi Kusuma; Harjanto, Budi; Widiastuti, Indah
Nozel : Jurnal Pendididikan Teknik Mesin Vol 1, No 1 (2019)
Publisher : Fakultas Keguruan dan Ilmu Pendidikan Universitas Sebelas Maret Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/nozel.v1i1.28482

Abstract

This research aims to (1) develop an instructional material based animation software for CNC course, (2) evaluate instructional material for CNC course that has been developed. The research was conducted at the Department of Mechanical Engineering Education, Faculty of Teacher Training and Education, Sebelas Maret University Surakarta. This research used Multimedia Development Life Cycle (MDLC) as research procedure, which consists of six stages, concept, design, collecting material, assembly, testing and distribution. Evaluation of instructional material for CNC course was performed by ask potential users to operate CNC instructional material that have been developed, then get response from potential users through a questionnaire. Potential users are divided into two categories, lecturers of CNC and CAM courses and students of Mechanical Engineering Education who take CNC and CAM courses in the academic year 2015/2016. Questionnaire for lecturers of CNC and CAM course reviewing instructional material from aspects of learning content, interaction, and presentation of the material. The questionnaire was given to 3 lecturers consisting of 15 point statements with Rating Scale as assessment system on intervals 1-5. Questionnaire for student reviewing instructional material from aspect of learning motivation as one of instructional material function. Questionnaire was given to 26 students consisting of 20 point statements with Likert Scale as assessment system on intervals1-5. The results of the research show (1) the development of instructional material for CNC course used Adobe Flash CS6 as main software with MDLC as development procedure, (2) the evaluation results show the instructional material for CNC course that developed gets (a) in aspects of learning content, interaction, and presentation of the material, the instructional material for CNC course gets very good category with percentage 90,22%, (b) in the aspect of learning motivation as one of instructional material function, the instructional material for CNC course gets good categories with percentage 78,39%.

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