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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 6 Documents
 1 
Search results for , issue "vol 4, no 2 (2022)" : 6 Documents clear
INVESTIGASI EKSPERIMENTAL PEMANAS AIR TENAGA SURYA SISTEM TRICKLE BERBAHAN POLIKARBONAT VARIASI LAJU ALIRAN 2 LPM Alisya Eka Putri; Nugroho Agung Pambudi; Husin Bugis
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.v4i2.72232

Abstract

Solar energy is one of the most impactful renewable energy sources and has great potential compared to other energy sources. The use of solar energy can be maximized by using solar panel technology and solar collectors. One example is a solar water heater. Polycarbonate is a good material to be applied to solar water heaters because it has good mechanical properties and is corrosion resistant. This study aims to analyze the performance of a polycarbonate solar water heater with a trickle system using a flow rate of 2 l/m. This type of research is quantitative with experimental research methods. This research was conducted by flowing water through a solar water heater and taking data from 08.00-15.00 with 3 repetitions to obtain accurate results. Data were collected by recording the temperature at the inlet, outlet, collector, top collector, environment, intensity of solar radiation, and wind speed. The data obtained were analyzed to find collector efficiency, fluid efficiency and total efficiency. Based on the research results, this solar water heater is capable of producing water temperatures up to 40.5°C with temperature changes of up to 7.2°C. This solar water heater is able to produce a collector efficiency of up to 52%, and a total efficiency of 37%.
PENGARUH PENGGUNAAN STEP UP VOLTAGE DENGAN VARIASI KONSENTRASI BIOETANOL DALAM PERTALITE TERHADAP KONSUMSI BAHAN BAKAR SEPEDA MOTOR HONDA BEAT Kolik Setyawan; Danar Susilo Wijayanto; Ngatou Rohman
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.
PENINGKATAN MINAT BELAJAR SISWA MELALUI PENGEMBANGAN E-MODUL PADA PELAJARAN KBGT (Kerja Bengkel dan Gambar Teknik) PADA ERA NEW NORMAL DI SMKN 8 MALANG Afan Alfarozi; Ulfa Rahayu Saputra; Ahmad Syaifudin; Tuwoso Tuwoso
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.v4i2.72235

Abstract

The pandemic makes learning in the school environment limited, as a result the ability of students to understand and master the material of a subject decreases. Distance learning / online is the main choice so that the learning process continues. Online learning results in limited students getting learning resources from textbooks, so that their interest in reading and learning decreases. Researchers make innovations to overcome these problems by making an e-module product as student learning material with concepts and material content that are more interesting and easily understood by students. It is hoped that this e-module can increase students' interest in learning in KBGT lessons (workshop work and technical drawing) at SMKN 8 Malang. This study uses the Borg and Gall version of the R&D (Research & Development) method which is simplified by Anik Ghufron. The development model used has four stages, namely preliminary studies, development, field testing, and product development dissemination. This research is based on interviews and validation questionnaires. The results showed that the KBGT e-module developed was declared very feasible with a material validity value of 3.35 and media value of 3.43.
ANALISIS KESIAPAN DAN MINAT MAHASISWA DALAM PROGRAM MERDEKA BELAJAR KAMPUS MERDEKA: STUDI KASUS MAHASISWA JPTK FKIP UNS ANGKATAN 2020 Mukhlis Dwiaji Pamungkas; Budi Harjanto; Towip Towip
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.v4i2.72237

Abstract

It is necessary to increase soft skills and hard skills so that university graduates are ready to work and face challenges in the world of work. Competencies are needed that are integrated with other majors so that university graduates can adapt to the world of work. So that students must be prepared to have readiness and interest in learning in the era of global competition. The Independent Learning Campus Merdeka Program (Program Merdeka Belajar Kampus Merdeka atua MBKM) is expected to be able to answer this challenge. The method used in this research is descriptive statistics. With the aim of testing the hypothesis that there is readiness, interest, and major indicators that affect the readiness and interest of JPTK FKIP UNS students batch 2020 in carrying out the Independent Learning Campus Merdeka program. The conclusion of this study is that there is readiness of JPTK FKIP UNS students batch 2020 in the MBKM program, there is interest from JPTK FKIP UNS students batch 2020 in the MBKM program, there are large indicator values that affect the readiness and interest of JPTK FKIP UNS students batch 2020 in implementing the MBKM program, namely indicators Emotions of Pleasure and Psychic Conditions Affective Attitudes.
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.
STUDI EKSPERIMENTAL PENGARUH JUMLAH SUDU DAN PENGGUNAAN END PLATE TERHADAP CUT IN SPEED TURBIN ANGIN SAVONIUS HELIKS Hermawan Yudha Prasetya; Danar Susilo Wijayanto; Taufik Wisnu Saputra
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.v4i2.72230

Abstract

This study aims to analyze the effect of variations in the number of blades and the use of end plates on the cut in speed of Helical Savonius wind turbine. The method used in this research is the experimental method. The variables used in this study are variations in wind speed from 1 to 5 m/s with intervals of 0.5 m/s. Variations in the number of blades are 2,3, and 4 blades. Variations in the use of end plates and without end plates. The results of this study was found that variations in the number of blades and the use of end plates affect the cut in speed of helical Savonius wind turbine. The fewer the number of turbine blades, the better the turbine's cut in speed will be. 2 blade’s Helical Savonius wind turbine with end plate is turbine variation that is able to produce best cut in speed of 1.97 m/s, compared to other variations.

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