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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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PENGARUH PENGGUNAAN STEP UP VOLTAGE DENGAN VARIASI KONSENTRASI BIOETANOL DALAM PERTALITE TERHADAP KONSUMSI BAHAN BAKAR SEPEDA MOTOR HONDA BEAT Setyawan, Kolik; Wijayanto, Danar Susilo; Rohman, Ngatou
Nozel : Jurnal Pendididikan Teknik Mesin Vol 4, No 2 (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.v4i2.72234

Abstract

This study with stationary test aims to (1) To investigate the effect of using step up voltage on Honda Beat motorcycles on fuel consumption with stationary test. (2) To investigate the variation of the best voltage from the use of step up voltage on the fuel consumption of Honda Beat 2013 motorcycles with stationary test. (3) To investigate the effect of the use of a mixture of bioethanol and pertalite fuels on the fuel consumption of Honda Beat motorcycles with stationary test. (4) To investigate the variation of the best concentration of mixing bioethanol in pertalite on the fuel consumption of a Honda Beat 2013 motorcycle with stationary test. (5) To investigate the best configuration of a mixture of bioethanol and the use of step up voltage on the fuel consumption of a Honda Beat motorcycle with stationary test. Data collection techniques are needed to obtain results. valid data from the tests that have been carried out. Experimental techniques were used to collect data from each of the variables studied. So that the determination of variables is very necessary by carrying out clear research and testing procedures in order to facilitate the process of collecting data from the results of these experiments. The test results on the stationary test, namely the use of step up voltage, there is an effect on fuel consumption, the best is set at voltage of 14,3 V at 3.65 ml/min. The use of variations in the concentration of bioethanol in pertalite has an effect on fuel consumption with the best results using a 20% bioethanol concentration of 4.56 ml/minute. The best configuration was obtained when the step up voltage was set at 14.1 V and the 25% bioethanol concentration was 4.01 ml/min. more perfect due to a decrease in the level of fuel consumption in the tested vehicle.
Analisis Perpindahan Kalor Pada Double Pipe Heat Exchanger Beraliran Lawan Arah Menggunakan Sirip Trapesium Dengan Fluida Cair Zulfahmi, Muhammad Tsany; Wijayanto, Danar Susilo; Widiastuti, Indah
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.v3i3.62971

Abstract

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%.
Perencanaan Pembelajaran Berbasis Teaching Factory pada Kompetensi Keahlian Teknik Pemesinan di SMK Bhinneka Karya Surakarta Kafi, Ahmad; Utomo, Andhika Budi; Setyawan, Apri Ghuntur; Kholis, Aqis Nur; Aji, Bayu Handoyo; Cahyanto, Bimo Tri; Harjanto, Budi; Sulistyo, Sulistyo
Nozel : Jurnal Pendididikan Teknik Mesin Vol 6, No 1 (2024)
Publisher : Fakultas Keguruan dan Ilmu Pendidikan Universitas Sebelas Maret Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/nozel.v6i1.84044

Abstract

This research aims to describe the teaching factory planning process, the use of the teaching factory application, and its assessment to improve student competency at Bhinneka Karya Surakarta Vocational School. The Teaching Factory planning design was carried out based on the results of observations and analysis at Bhinneka Karya Vocational School, Surakarta. In-depth interview techniques, observation and documentation were used to collect data. Interactive models play a role in analyzing data and procedures starting with data collection, reduction, presentation and verification of conclusions. Research findings show that the implementation of teaching factory-based learning in the context of developing student competency begins with planning, implementation of learning, production/service activities, industrial collaboration, impacts and obstacles faced. In planning the teaching factory, utilizing strategies to realize change, the material in class, titles and job sheets are adjusted to existing standards in the industry, educators adapt the practices carried out by students so that they are equipped to deliver quality material that is driven throughout the day, the talents that they will carry out. Through teaching factories, student competence can be improved with various learning procedures that have been established in the curriculum and implemented for vocational school students.
PENYELARASAN KURIKULUM PRODI PTM FKIP UNS KONSENTRASI OTOMOTIF DENGAN DUNIA INDUSTRI Pradana, Yogi Alifudin; Ranto, Ranto; Estriyanto, Yuyun
Nozel : Jurnal Pendididikan Teknik Mesin Vol 4, No 4 (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.v4i4.72275

Abstract

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 VARIASI PENAMBAHAN FLY ASH & BENTONIT TERHADAP SIFAT PASIR CETAK DAN CACAT GASHOLES PADA HASIL PENGECORAN LOGAM ALUMINIUM Bahrudin, Faqih; Harjanto, Budi; Saputro, Herman
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.v1i2.30430

Abstract

The objectives of this study to describe: (1) The effect of adding fly ash and bentonite to the permeability of molding sand. (2) The effect of adding fly ash and bentonite to the moisture of molding sand. (3) The effect of adding fly ash and bentonite to gasholes defect on aluminium metal casting. This study is conducted at Polytechnic of Manufaktur Ceper, Klaten. The method that used is pre-experimental design which one-shot case study design. The compositions of the molding sand are varied is fly ash and bentonite. The Sample variations are divided into 4 types based on fly ash and bentonite concentration. The comparison of fly ash and bentonite concentration are: variation A are 0%:9%, variation B are 1%:8%, variation C are 2%:7%, and variation D are 3%:6%. The tests which is done in this study such as permeability test by using permeability tester, moisture test by using moisture tester, and gaholes defect test by using visual observation and calculation of gasholes defect.The results showed that: (1) The adding fly ash and bentonite can decreased the permeability values of molding sand. The lowest permeability values occur at variation D that is 85.34 cm3/min. (2) The adding fly ash and bentonite can decreased the moisture of molding sand. The lowest moisture values occur at variation D that is 5,26 %. (3) The adding fly ash and bentonite can improved the quality of castings. The results of castings at variation B which adding fly ash and bentonite has less gasholes defects compared with variation which no adding fly ash that is 3,15 cm3
Hubungan Employability Skills dengan Kesiapan Kerja Siswa di SMK N 1 Sawit Anto, Arif Budi; Rohman, Ngatou; Towip, Towip
Nozel : Jurnal Pendididikan Teknik Mesin Vol 6, No 3 (2024)
Publisher : Fakultas Keguruan dan Ilmu Pendidikan Universitas Sebelas Maret Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/nozel.v6i3.89048

Abstract

This study aims to (1) determine the relationship between employability skills and work readiness of SMK N 1 Sawit students. The research method used is quantitative descriptive which is described from the data results. The sampling technique in this research was simple random sampling or random sampling with a total of 140 class Data collection was carried out using questionnaires from class XII students who concentrated in the mechanical field. The validity test technique was carried out by comparing the calculated r value with the table r value and a reliability test using the Cronbach's Alpha formula > 0.6 using a sample of 30 students and obtained results for employability skills of 0.957 and work readiness of 0.800. The analysis prerequisite tests in this research consist of normality tests and linearity tests which aim to determine the normality of the data and the suitability of data that has been filled in by 140 students who concentrate on machines and processed using SPSS version 26.0. So that normal and linear data results are obtained. Hypothesis testing in this study uses the Pearson correlation test to determine the relationship between two variables. The research results are as follows, there is a positive relationship between the employability skills variable and students' work readiness at SMK N 1 Sawit where employability skills have a relationship with work readiness. The value of the effective contribution was 70.8%, while the remaining 29.2% was influenced by other factors, both internal and external to each individual.
ANALISIS PEMBELAJARAN BERBASIS HOTS PADA PESERTA DIDIK KELAS XI TKR DI SMK NEGERI 2 SUKOHARJO Juliana, Erva Nhor; Suharno, Suharno; Sriwardani, Nyenyep
Nozel : Jurnal Pendididikan Teknik Mesin Vol 2, No 4 (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.v1i4.50853

Abstract

The objective from this research is to find Penelitian ini bertujuan untuk: (1) how the learning implementation design (RPP) made by TKR teachers at SMK Negeri 2 Sukoharjo that meets Higher Order Thinking Skills elements; (2) implementation of learning activities carried out by TKR teachers at SMK Negeri 2 Sukoharjo; (3) implementation of learning assessments made by TKR teachers at SMK Negeri 2 Sukoharjo which leads to elements of higher order thinking skills. This research is a mixed methods research. Data sources came from 98 students from TKR XI, Teachers of Smk Negeri 2 Sukoharjo. Data techniques include questionnaires, documentation and observation. This study uses data validity using sampling techniques and the Slovin formula. The research procedure consists of research methods, preparation of research instruments, data collection, data analysis, drawing conclusions. The conclusion is (1) The Learning Implementation design (RPP) made by TKR class XI teachers at SMK Negeri 2 Sukoharjo has damaged it to fulfill the elements of higher-order thinking skills; (2) The implementation of learning activities by TKR teachers at SMK Negeri 2 Sukoharjo has attempted to implement learning activities that lead to higher-order thinking skills; (3) The assessment or evaluation of learning made by TKR teachers at SMK Negeri 2 Sukoharjo has led to elements of measuring higher-order thinking skills.
Implementasi Model Pembinaan SMK Pengimbasan Oleh SMK Pusat Keunggulan dalam Meningkatkan Kualitas Pembelajaran Berbasis Teaching Factory Setiawan, Samuel Dody; Sutrisno, Valiant Lukad Perdana
Nozel : Jurnal Pendididikan Teknik Mesin Vol 8, No 3 (2026)
Publisher : Fakultas Keguruan dan Ilmu Pendidikan Universitas Sebelas Maret Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/nozel.v8i3.119267

Abstract

This study aims to describe the Teaching Factory coaching model implemented by Center of Excellence Vocational Schools in improving the quality of learning in impact vocational schools and to identify the factors influencing the success of the coaching process. This study employed a qualitative descriptive method with a case study approach. Data were collected through in-depth interviews, observations, and documentation involving principals, Teaching Factory coordinators, productive teachers, students, and industrial partners selected using purposive and snowball sampling techniques. Data validity was tested through source and method triangulation, while data were analyzed using an interactive analysis model consisting of data collection, reduction, display, and conclusion drawing. The results showed that the Teaching Factory coaching model was implemented through interconnected stages, including coaching forms and strategies, implementation, monitoring and evaluation, and program impact. The coaching process was conducted through socialization, workshops, training, direct practice, and continuous mentoring using learning by doing and model imitation approaches. The implementation of Teaching Factory improved industry-oriented learning systems and strengthened teacher and student competencies in production-based learning. The success of the coaching process was influenced by internal factors, such as school commitment, teacher support, student readiness, human resources, and facilities, as well as external factors, including industrial support, government support, funding, public trust, and industrial collaboration.
PENGEMBANGAN E-MODUL PRAKTIKUM BERBASIS PROBLEM BASED LEARNING PADA MATA KULIAH PRAKTIK MOTOR BAKAR LANJUT DI PROGRAM STUDI PENDIDIKAN TEKNIK MESIN UNS Mustofa, Fuad Dwi; Bugis, Husin; Sutrisno, Valiant Lukad Perdana
Nozel : Jurnal Pendididikan Teknik Mesin Vol 5, No 2 (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.v5i2.75390

Abstract

This study aims to (1) produce a practical teaching material in the form of a practicum e-module for advanced fuel motor practice courses in the Mechanical Engineering Education Study Program which is declared feasible (2) find out the practicality of practicum e-modules in advanced fuel motor practice courses in the Mechanical Engineering Study Program.This research uses the type of research development or Research and Development (R&D). The development model used is the ADDIE development model (Analysis, Design, Development, Implementation, and Evaluation). The instruments used in this study included practicum e-module requirement sheets, practicum e-module validation sheets by experts, research sheets for lecturers in advanced fuel motor practice courses and student response sheets. Trials of the practicum e-module product were carried out for students of the Mechanical Engineering Education study program class of 2021 who are currently taking an advanced fuel motor practice course. Data analysis used in this research is descriptive quantitative and descriptive qualitative.Based on the results of the analysis of the validation sheet by the experts, it was found that the practicum e-module was declared feasible to use with a score of 88.8% for the results of material experts in the very feasible category, 86.4% for media experts in the very feasible category, and linguists showing a percentage score of 97.5% very decent category. Based on the results of the analysis of the practicum e-module practicum sheet by student responses and the assessment of lecturers supporting advanced fuel motor practice courses, it shows that the practicum e-module is stated to be practical with an average result of student response percentage scores of 88.9% in the very practical category and the assessment of supervising lecturers shows a score of 85.3% with the very practical category. So that the practicum e-module is declared feasible and practically used by students as teaching material in supporting the learning of advanced fuel motor practice course.
PENGARUH MEDIA PENDINGIN PADA PENGELASAN BAJA S45C MENGGUNAKAN METODE PENGELASAN GAS METAL ARC WELDING TERHADAP KEKERASAN DAN STRUKTUR MIKRO Rachmadani, Rachmadani; Suharno, Suharno; Saputro, Herman
Nozel : Jurnal Pendididikan Teknik Mesin Vol 2, No 1 (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.v2i1.43237

Abstract

This study aims to determine the effect of cooling media on microstructure and hardness values on alloy steel S45C using the welding method of Gas metal arc welding (GMAW). This research is using an experimental method. The data analysis technique used is descriptive comparative. The tool used for microstructure testing is Olympus Metallurgical Microscope and hardness test using the Vickers Hardness Tester. Based on the results of the study, it can be concluded that the results of the microstructure show an increase in the structure of pearlite after welding. In raw material, ferrite structures are seen evenly but in the welding results, GMAW which has cooled by using water, air, and oil cooling media show that ferrite is reduced in each specimen, so the pearlite structure dominates. The values of hardness and microstructure in the welding results using water, oil and aircooling media show differences in the level of hardness and microstructure. Specimens with water cooling media at the Heat Affected Zone (HAZ) test point have a higher hardness level of 315.4 VHN when compared to specimens using an oil cooling medium of 268.7 VHN and air conditioning media of 177.4 VHN. Specimens with water cooling media the microstructure in the Heat Affected Zone (HAZ) section showed more pearlite which was evenly distributed compared to specimens using other cooling media, or it could be concluded that the further away from the Las area and HAZ the smaller the pearlite content. This study shows that welding using variations in cooling media changes the microstructure and influences the hardness value of the S45C steel alloy

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