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Program Studi Pendidikan Teknik Mesin Fakultas Keguruan dan Ilmu Pendidikan Universitas Sebelas Maret Surakarta Kampus V UNS Pabelan Jl. Ahmad Yani 200 Pabelan Sukoharjo, Jawa Tengah, Indonesia
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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 227 Documents
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ANALISIS PENTINGNYA KESADARAN KESELAMATAN DAN KESEHATAN KERJA (K3) DI PERUSAHAAN TEKSTIL Rizky Bagus Setyajj; Danar Susilo Wijayanto; Taufik Wisnu Saputra
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.v6i3.77211

Abstract

Low company and employee awareness of occupational safety and health (K3) can have a crucial impact in the form of work-related accidents and occupational diseases. The purpose of this study was to determine the level of OSH awareness by employees at Textile Company, knows the impact of the attitude of employees who ignore the important of K3 awareness, and knows the efforts of the company and employees in preventing work accident. This research is a qualitative research with a case study approach. The data sources for this research were obtained directly from employee work activities, interviews with section heads, shift heads, office staff, 4 employees and documents in the form of employess attendance data, company administration data, machine data, equipment data, materials data, and accident health data. Work, the sampling technique was carried out by means of purposive sampling. Meanwhile, data collection was carried out using interview techniques, observation and document study. The data analysis technique used is source triangulation and methode triangulation. The data analysis technique used is the interactive data analysis model of Miles and Huberman which consist of data reduction stages, presenting data, and making conclusions. Furthermore, the results of the study show that the level of employee awareness of occupational safety and health is seen from several aspects, namely the use machine, tools, materials, and working environment conditions, work methods, work position, and employee lifting loads, interpersonal relationship, roles and responsibilities towards work, as well as hygiene facilities that are clean and healthy. The impact of the low level of company and employee awareness of K3 can cause work-related accidents and occupational diseases which are divide into 3 causal factors, namely technical factors, non-technical factors, and natural factors. Efforts made by companies and employees in preventing work accident are efforts to prevent work accidents using hazard control in workplace, prevention efforts through guidance and supervision, and prevention efforts through management systems.
Kajian Indikator Proses Pembelajaran Praktek Pengelasan Di SMK Muhamad Dwi Ariyanto; Yuyun Estriyanto; Budi Budi Harjanto
Nozel : Jurnal Pendididikan Teknik Mesin Vol 4, No 1 (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.v1i1.63578

Abstract

 Abstract The objectives of the study are: (1) to find the indicators of welding teaching and learning process which is appropriate to the characteristics of welding ability, (2) to know the ideal magnitude of every indicator in qualified SMAW welding teaching and learning process.The approach of the survey which is used in this research is the combination of qualitative and quantitative with sequential exploratory model of descriptive method. The first step applied is qualitative method and the second step is quantitative method. The technique of collecting data were interview and questionnaire. The respondents of the study was chosen by certain consideration.The results of the study are: (1) the indicators of welding process in teaching and learning practice are teaching and learning model, students’ character, physical condition, psychological condition, duration of the practice session, and teaching and learning practice frequency. (2) Satisfied result was found when the teaching and learning held once in a week, one meeting is 8 teaching hours. (3) The material delivery within 16 meetings is enough to be understood by students. (4) The mastering position of welding is ideally for 1G or 1F needs 3 meetings, 2G or 2F needs 5 meetings, and 3G or 3F needs 8 meetings. (5) 16 meetings for welding teaching and learning practice is not enough to master the SMAW welding competency.
PIROLISIS CAMPURAN BIOMASSA LIMBAH SEKAM PADI DAN LIMBAH PLASTIK LOW DENSITY POLYETHYLENE MENGGUNAKAN KOMPOR BIOMASSA Muhammad Rifqi Koes Setyawira; Danar Susilo Wijayanto; Ngatou Rohman
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.v5i4.76084

Abstract

The demand for fuel oil is increasing day by day, resulting in the depletion of oil and gas reserves in Indonesia. Rice husk waste biomass and low-density polyethylene plastic are wastes that can be utilized as alternative fuel sources by pyrolysis method. Pyrolysis is the process of burning organic and synthetic materials in conditions of little or no oxygen by utilizing heat from high temperature combustion. Pyrolysis method processing requires a heater to burn the material during the process. Efforts that can be made are the use of biomass stoves as the right solution because of the availability of abundant and cheap raw materials, biomass stoves can also provide solutions to reduce the impact of environmental pollution smoke. The purpose of this study was to determine the temperature produced by the biomass stove and the effect of the comparison of the composition of the biomass mixture of rice husk waste and low density polyethylene plastic waste on the quantity of pyrolysis oil. This research uses experimental method with quantitative descriptive analysis technique. This research was conducted by pyrolyzing a mixture of rice husk biomass waste and low density polyethylene plastic waste with variations in composition ratio of 0%:100%, 25%:75%, 50%:50%, 75%:25%, and 100%:0%. The pyrolyzed oil was then filtered and tested for quantity. The test results show that the biomass stove can be used as a heater in a pyrolysis device with a capacity of 4 kg of coconut shell briquettes. The use of coconut shell briquettes as fuel has the advantage of being able to produce higher heat and last longer than charcoal. The biomass stove can produce the highest pyrolysis temperature reaching 665.5°C at the bottom, 541°C in the middle, and 430.3°C at the top. There is an effect of variation in the composition of the mixture of rice husk waste and low-density polyethylene plastic waste on the quantity of pyrolysis oil. The composition of more rice husk waste compared to low density polyethylene plastic waste produces less quantity of pyrolysis oil, while the comparison of the composition of more low density polyethylene plastic waste compared to rice husk waste produces pyrolysis oil with more quantity. This can be seen from the quantity of pyrolysis oil produced ranging from 265 ml to 853.3 ml.
Evaluasi Ekonomi Teknik Predictive Maintenance di Industri Manufaktur: Systematic Literature Review Zus tian
Nozel : Jurnal Pendididikan Teknik Mesin Vol 8, No 4 (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.v8i4.122817

Abstract

This study aims to evaluate the economic engineering aspects of predictive maintenance implementation in the manufacturing industry using a systematic literature review (SLR) approach. Literature searches were conducted through five databases, namely Google Scholar, ScienceDirect, IEEE Xplore, SpringerLink, and Emerald, using keywords related to predictive maintenance, manufacturing industry, engineering economy, cost-benefit analysis, return on investment, payback period, and life cycle cost. The article selection process followed the PRISMA 2020 framework and resulted in 25 final articles from 250 articles identified in the initial search. The findings show that predictive maintenance in manufacturing is commonly implemented through machine learning, IoT sensor monitoring, vibration analysis, digital twin, and condition-based monitoring. From an economic engineering perspective, these implementations contribute to downtime reduction, lower emergency maintenance costs, improved asset reliability, and better investment efficiency. However, most studies remain dominated by technical performance evaluation, while comprehensive economic indicators such as ROI, NPV, IRR, payback period, life cycle cost, and cost-benefit analysis are still limited. This study highlights the need to integrate technical performance and economic feasibility analysis in predictive maintenance decision-making.
ANALISIS KETERLAKSANAAN K3 PADA PEMBELAJARAN PRAKTIK DI PROGRAM STUDI PENDIDIKAN TEKNIK MESIN UNIVERSITAS SEBELAS MARET Fasya Sebastian Bah; Yuyun Estriyanto; Valiant Lukad Perdana Sutrisno
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.v4i3.72269

Abstract

The knowledge aspect regarding K3 in Mechanical Engineering Education still tends to be low. Lack of understanding of K3 implementation has a negative impact on Vocational Education Students. There are still inhibiting factors / causes that influence the implementation of Occupational Health and Safety (K3). This research is a quantitative descriptive study. In connection with the notion of descriptive research, it is carried out by seeking information related to existing symptoms, clearly explaining the goals to be achieved, planning how to approach them, and collecting various kinds of data as material for making reports. (Iyus Jayusman, 2020) Obtained a knowledge level of 90%. This can be seen from students who know about the theory of K3 knowledge. Obtained implementation of 83%. This can be seen from students who understand the implementation of practical learning in the PTM Lab. UNS. Obtained alertness level of 76%. This can be seen from the students who know that the level of awareness in practical learning in Lab.PTM UNS is very good. So that the risk of accidents occurring at the practice site can be minimized by students. In future studies, it can be tried to examine other variables with the same theme because there are still many variables that can be re-examined.
Pengaruh Jenis Kelamin, Pendidikan, dan Pendapatan Masyarakat terhadap Kesediaan Membayar atau Willingness To Pay (WTP) Mobil Listrik di Surakarta Elvira Wahyu Arum Fanani; Husin Bugis; Nugroho Agung Pambudi; Muhammad Kunta Biddinika
Nozel : Jurnal Pendididikan Teknik Mesin Vol 3, No 1 (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.v3i1.63325

Abstract

Indonesia has an ambitious national energy goal of developing electric vehicles (EVs). Electric vehicles can be a solution to reduce energy consumption and carbon dioxide emissions in the transportation sector. So this research has an important role in directing the right policies to realize these targets. This study aims to analyze the factors that influence the people of Surakarta to buy an electric car. The research sample is the people of Surakarta as many as 348 people. The test results were analyzed using multiple linear regression method with analysis using SPSS version 25. The results of this study indicate that gender, education level, and people's income affect the willingness to buy electric cars. These factors together have an effect of 16.5% on the willingness to pay for an electric car. In addition, the average WTP value for purchasing electric cars is estimated to be around Rp. 179,885,058.00.
THE INFLUENCE OF RELIGIOUS ATTITUDES ON VOCATIONAL HIGH SCHOOL STUDENTS'S WORK READINESS Diyana Indah Sari; Suharno Suharno; Nugroho Agung Pambudi
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.v5i4.78529

Abstract

This study aims to determine the influence of religious attitudes on vocational high school students's work readiness. This study used a quantitative approach with a descriptive design. The population in this study were all students of Vocational High School 1 Kismantoro, Vocational High School 1 Bulukerto, Vocational High School 1 Pracimantoro, a total of 2477 students, and the sample taken was 97 respondents. The sampling technique used in this research is simple random sampling technique formula is used to determine the number of samples Slovin. The method used in this research is a quantitative approach with a survey design. Data was collected by distributing closed questionnaires of 42 questions to respondents. The data analysis technique used in this research is simple linear regression analysis. The results showed that religious attitudes had a positive and significant effect on the work readiness of vocational high school students with an R square of 0.6451. This means that religious attitudes have an influence on the work readiness of vocational high school students by 64.51% and the rest is influenced by other variables.
ANALISIS SIFAT TERMAL KOMPOSIT LIMBAH MASKER BERPENGUAT SERAT BAMBU Hana Nadia Ekawardani; Indah Widiastuti; Yuyun Estriyanto
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.v5i1.72285

Abstract

This study aims to analyze differences in thermal properties, including thermal stability and the change in melting temperature (Tm) on variations in the mass fraction of fiber in mPP/bamboo fiber composite materials. Disposable face mask waste or mask polypropylene (mPP) is used as a polymer matrix and bamboo (Dendrocalamus asper) fiber as a composite reinforcement. The method used in this research is experimental. Variations in the mass fraction of bamboo fiber used were 0%, 4%, 8%, and 12%. Size of the bamboo fiber used is 5 mesh and has been treated with 5% NaOH alkali for 2 hours. The composite manufacture consists of two stages, namely the manufacture of mPP/bamboo fiber fragments by melting mask waste that has been mixed with bamboo fiber using an oven at 180°C for 2 hours. In the second stage, the mPP/bamboo fiber fragments were processed using an extruder machine with a processing temperature of 150°C and a screw speed of 25 rpm. Composite specimens measuring 2 x 2 x 2 mm with a weight of 1 to 10 mg were tested by TGA and DSC using a temperature of 25 to 900°C with a heating speed of 10°C/min in an oxygen atmosphere. The results of the thermogravimetry analysis (TGA) test showed that the neat mask polypropylene (mPP) without bamboo fiber reinforcement had the best thermal stability compared to other fiber mass fractions. The results of the differential scanning calorimetry (DSC) test showed that the mPP/0% bamboo fiber had the best melting temperature (Tm) at a temperature of 156.16˚C compared to other fiber mass fractions in the temperature range of 155°C to 156°C.
Analisis Relevansi dan Proyeksi Pengembangan Standar Bengkel Teknik Kendaraan Ringan menuju Standar Industri di Pendidikan Teknik Mesin UNS Adira Alfi Silvianthy; Valiant Lukad Perdana Sutrisno
Nozel : Jurnal Pendididikan Teknik Mesin Vol 8, No 4 (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.v8i4.120866

Abstract

Penelitian ini bertujuan untuk menganalisis relevansi bengkel otomotif TKR di PTM UNS terhadap standar bengkel industri serta merumuskan proyeksi pengembangannya guna mendukung pembelajaran yang lebih sesuai dengan kebutuhan dunia industri
ANALISIS PENGARUH IRADIASI SINAR GAMMA TERHADAP KEKUATAN TARIK DAN PENYERAPAN AIR KOMPOSIT POLYMER BLEND BERPENGUAT SERAT BAMBU Rifki Hikmawan; Indah Widiastuti; Danar Susilo Wijayanto
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.v4i2.72239

Abstract

The main purpose of this study was to determine the effect of variations in gamma ray dose on the physical and mechanical properties of natural fiber reinforced polymer blend composites. The method used in this research is experimental. This research was conducted on polymer blend composites, namely recycled High Density Polyethylene (rHDPE) and recycled Polypropylene (rPP) with bamboo fiber reinforcement with variations in gamma ray doses of 0 kGy, 25 kGy, 50 kGy, and 75 kGy. Bamboo is processed using a crusher into fibers with a size of 40 mesh and treated with 5% NaOH alkali for 10 minutes then dried using oven for 24 hour at a temperature of 105 °C to remove lignin contained in bamboo fibers. The composite was made using two machines, namely an extrusion machine with a heater temperature of 175 °C, 180 ºC, 185 ºC, and 190 ºC with a screw speed of 25 rpm. Then the injection molding machine with a temperature of 220 ºC with a specimen mold temperature of 90 ºC and an injection pressure of about 45 bar for 20 minutes. Gamma ray treatment was carried out after making the specimen before testing. Where a gamma cell irradiator is used and as a source of gamma rays, cobalt-60 (Co-60) is used. Tensile and water absorption tests are used to determine the physical and mechanical properties of the composite material according to ASTM D638 type V and ASTM D570-98 standards. The test results showed that the higher the dose used, the lower the physical and mechanical properties of the composite. The highest tensile strength was found at the 25 kGy dose treatment of 13.68 MPa and the lowest at the 75 kGy dose treatment. The lowest water content absorption and thickness expansion after 144 hours of immersion were at a 50 kGy gamma dose of 3.43% and 1.27%, respectively. Meanwhile, the highest condition was found at the 75 kGy gamma ray dose of 3.79% and 1.42%, respectively.

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