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All Journal INVOTEK: Jurnal Inovasi Vokasional dan Teknologi Jurnal Rekayasa Material, Manufaktur & Energi JPP IPTEK (Jurnal Pengabdian dan Penerapan IPTEK) JURNAL PENDIDIKAN TAMBUSAI Journal of Applied Engineering and Technological Science (JAETS) MOTIVECTION : Journal of Mechanical, Electrical and Industrial Engineering Suluah Bendang: Jurnal Ilmiah Pengabdian Kepada Masyarakat Teknomekanik Jurnal Vokasi Mekanika ALSYS : Jurnal Keislaman dan Ilmu Pendidikan MASALIQ: Jurnal Pendidikan dan Sains Jurnal Aplikasi IPTEK Indonesia Journal of Engineering Researcher and Lecturer Ranah Research : Journal of Multidisciplinary Research and Development

Nurdin Hendri

Department Of Mechanical Engineering, Faculty Of Engineering, Universitas Negeri Padang

Author-ID : 1428621

Religion Aerospace Engineering Humanities Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Industrial & Manufacturing Engineering Law, Crime, Criminology & Criminal Justice Mechanical Engineering Public Health Social Sciences Transportation Other

Published : 65 Documents Claim Missing Document

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Comparison of NaOH and Na2CO3 as absorbents for CO2 absorption in carbon capture and storage technology Dinul, Fadhilah Ikhsan; Nurdin, Hendri; Rahmadiawan, Dieter; Nasruddin; Laghari, Imtiaz Ali; Elshaarani, Tarig
Journal of Engineering Researcher and Lecturer Vol. 2 No. 1 (2023): Regular Issue
Publisher : Researcher and Lecturer Society

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58712/jerel.v2i1.23

CO2 gas is a greenhouse gas that causes global warming. Greenhouse gases are gases in the atmosphere that can absorb and reflect infrared radiation from the Earth's surface. Currently, the energy demand still depends on fossil fuels. On the other hand, CO2 emissions from burning fossil fuels continue to increase and contribute as greenhouse gases to the atmosphere. CO2 capture is an effort to reduce the burden of CO2 emissions into the atmosphere and is part of the Carbon, Capture, and Storage (CCS) protocol. The CO2 absorption process applied in the chemical industry is one of the CO2 absorptions using NaOH and Na2CO3 solutions as absorbents. This research aims to determine the effect of absorbent flow rate on the percentage of absorbed CO2. The method used in this research is the SLR (Systematic Literature Review) method to identify all available research. The absorbent flow rate variations used are 1 liter/minute, 1.5 liters/minute, 2 liters/minute, 2.5 liters/minute, and 3 liters/minute. The absorption process using NaOH absorbent is capable of absorbing CO2 gas with a maximum absorption of 95.52% and a minimum of 79.14%. Meanwhile, in the Na2CO3 absorbent, it is capable of absorbing CO2 gas with a maximum amount absorbed of 72.45% and a minimum of 35.47%.

Installation of gussets to reduce stress on the junction between the arm and bridge on the swing arm Hidayat, Nailul; A, Yufrizal; Nurdin, Hendri; Kassimov, Farid; Kenzhaliyev, Elnar
Journal of Engineering Researcher and Lecturer Vol. 2 No. 2 (2023): Regular Issue
Publisher : Researcher and Lecturer Society

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58712/jerel.v2i2.75

The swing arm is one of the main components of a motorcycle that functions as a connection between the rear wheel and the frame. Under loading conditions, the joint area between the arm and the bridge experiences significant stress, leading to fractures in that region. This study aims to investigate the effectiveness of installing gussets to reduce the stress that occurs at the joint area between the arm and the bridge in the swing arm of ELGO electric motorcycles. The research was conducted using the static analysis simulation method with Solidworks 2021-2022 Research License software. The loading conditions were simulated based on the actual usage of the electric motorcycle. The simulation results revealed that without the installation of gussets, the joint area between the arm and the bridge in the swing arm experienced stress exceeding the yield strength of the material. This would inevitably lead to the breakage of the swing arm and potentially cause accidents for motorcycle riders. However, after the gussets were installed, the stress at the joint area between the arm and the bridge remained below the yield strength of the material. Based on these findings, it can be concluded that the installation of gussets successfully reduced the stress at the joint area between the arm and the bridge in the swing arm. This research outcome can serve as a reference for the design of swing arms for electric motorcycles.

Tensile strength study of mensiang (scirpuss grossus) fibre composites with unsaturated polyester resin matrix Hakiim, Evan; Nurdin, Hendri; Abadi, Zainal; Zhuang, Wei-Ting
Journal of Engineering Researcher and Lecturer Vol. 4 No. 1 (2025): Regular Issue
Publisher : Researcher and Lecturer Society

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58712/jerel.v3i3.164

The mensiang (scirpuss grossus) is a plant that grows on moist and watery land. Mensiang plants are commonly used by the society to produce mats or bags that have a strong and durable texture. This mensiang plant has fibres that can be used as reinforcement in polymer composites as a substitute for synthetic fibres. In composite manufacturing, one of the important factors in determining strength is the fraction between fibre and matrix. This study was conducted to determine the effect of different volume fractions of composites on the tensile strength of mensiang fibre reinforcement. Extraction of fibre from the stem of the mensiang plant was done manually by combing, so that the fibre was obtained. The fibres were then naturally dried by the sun for 2-3 days. The composite manufacturing process was carried out by using the hand lay-up method. Specimens and tensile testing procedures refer to the ASTM D638 standard. Several specimens were made by varying the fibre and matrix fractions. The test results showed that the 12.5% fibre volume fraction had the highest tensile strength. In this study there was no chemical treatment on the fibres before the lamination process, thus, this can be suggested for future researchers to study on the effect of chemical treatment on mensiang fibres on fibre bonding with the matrix.

PENERAPAN ALAT PENCACAH LIMBAH SERAI WANGI DALAM UPAYA PENINGKATAN PRODUKTIVITAS MASYARAKAT DI NAGARI SIMAWANG Nurdin, Hendri; Rahmadiawan, Dieter; Fauza, Anna Niska; Sari, Delima Yanti; Fikri, M
Jurnal Vokasi Mekanika (VoMek) Vol 6 No 1 (2024): Jurnal Vokasi Mekanika
Publisher : Departemen Teknik Mesin Fakultas Teknik Unversitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/vomek.v6i1.609

Tanaman serai wangi merupakan komoditi perkebunan yang dapat menghasilkan minyak atsiri. Dalam proses penyulingan tanaman serai wangi untuk mendapatkan minyak atsiri. Setelah proses penyulingan yang pada akhirnya menghasilkan limbah serai wangi. Petani belum mampu mengatasi permasalahan limbah tersebut. Masyarakat melakukan perajangan limbah untuk campuran pakan ternak, menjadikannya pupuk kompos untuk tanaman, dijadikan bahan bakar dengan dibakar langsung sehingga berdampak terhadap lingkungan dan menimbulkan polusi udara. Permasalahan ini membutuhkan penyelesaian dengan metode pendekatan sebagai solusi. Penerapan teknologi berupa alat pencacah limbah serai wangi sebagai upaya dalam meningkatkan produktifitas masyarakat di Nagari Simawang. Kegiatan penerapan teknologi kepada kelompok masyarakat mitra dirancang dalam pelaksanaan Program Kemitraan Masyarakat. Kegiatan yang dilakukan mulai dari persiapan dan perencanaan sampai dengan evaluasi pelaksanaan. Keberhasil melakukan penerapan alat pencacah serai wangi yang efisien serta konstruktif dengan kapasitas alat mencapai 34 kg/jam. Efektifitas penerapan alat mencapai 95% dalam menghasilkan pencacahan. Penerapan teknologi ini dapat berdampak terhadap peningkatan kesejahteraan dan peningkatan pemberdayaan masyarakat dan membangun wawasan masyarakat. Implementasi Program Kemitraan Masyarakat dengan pengembangan teknologi tepat guna kepada masyarakat di Nagari Simawang dapat keberlanjutannya dan bersinergi di tengah masyarakat.

PENGEMBANGAN MEDIA PEMBELAJARAN BERBASIS VIDEO TUTORIAL PADA PEMBELAJARAN DASAR-DASAR TEKNIK MESIN Rahman, Abdur; Prasetya, Febri; Nurdin, Hendri; Wulansari, Rizky Ema
Jurnal Vokasi Mekanika (VoMek) Vol 6 No 1 (2024): Jurnal Vokasi Mekanika
Publisher : Departemen Teknik Mesin Fakultas Teknik Unversitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/vomek.v6i1.669

Pentingnya pendidikan di Indonesia tidak boleh diabaikan, mengingat peran sentralnya dalam pembangunan sosial, ekonomi, dan pengembangan individu. Pendidikan yang berkualitas memungkinkan masyarakat untuk mengembangkan keahlian dan pengetahuan yang diperlukan untuk bersaing di pasar kerja global. Penelitian ini bertujuan melakukan validitas dan praktikalitas pada hasil pengembangan media video tutorial pembelajaran dasar teknik mesin, yang sebelumnya rendah karena penggunaan metode pembelajaran konvensional. Guru lebih suka menggunakan papan tulis sebagai media utama, yang menyebabkan kebosanan siswa dan menghambat pembelajaran optimal. Selain itu, kurangnya keterlibatan siswa juga mengakibatkan disiplin yang rendah. Untuk mengatasi masalah tersebut, penelitian ini mengembangkan media video tutorial Dasar Teknik Mesin kelas X di SMKN 1 Padang. Media ini dirancang untuk membantu pendidik dalam menyampaikan materi alat ukur dan langkah-langkah membaca hasil pengukuran dengan benar. Hasil penelitian memperlihatkan media ini valid dari segi materi/isi dan media menurut evaluasi tim validator. Uji praktikalitas pada guru dan siswa juga menunjukkan bahwa media ini sangat praktis, dengan skor 97.8 dari dosen dan 95 dari siswa, menandakan bahwa media pembelajaran ini dapat meningkatkan pemahaman siswa dan efektivitas pembelajaran. Tingkat keterampilan dapat dilihat dari data observasi pada semua aspek yang dinilai, dengan skor keterampilan dari 71,05 pada siklus 1, naik jadi 76,05 di siklus 2, dan mencapai 79,2 di siklus 3. Maka dari itu, penelitian ini dapat dianggap berhasil.

HUBUNGAN FASILITAS BENGKEL TERHADAP MINAT BELAJAR SISWA KELAS XI TEKNIK PENGELASAN BUSUR MANUAL Caniago, Yusuf; Nurdin, Hendri; Irzal, Irzal; Adri, Junil
Jurnal Vokasi Mekanika (VoMek) Vol 6 No 2 (2024): Jurnal Vokasi Mekanika
Publisher : Departemen Teknik Mesin Fakultas Teknik Unversitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/vomek.v6i2.699

Pendidikan teknik memiliki peran penting dalam membentuk keterampilan dan pengetahuan siswa, khususnya dalam bidang Teknik Pengelasan. Pemahaman terkait minat belajar siswa mencakup pengetahuan dan interpretasi terhadap faktor-faktor yang memengaruhi tingkat ketertarikan dan motivasi siswa dalam mengikuti pembelajaran. Penelitian ini bertujuan untuk menginvestigasi hubungan antar minat belajar dan fasilitas bengkel siswa pembelajaran Las Busur Manual kelas XI di SMK N 1 Guguak. Metode penelitian diterapkan ialah korelasional kuantitatif, dengan tujuan mengeksplorasi sejauh mana hubungan antar minat belajar dan fasilitas bengkel siswa kelas XI di SMKN 1 Guguak. Pengambilan sampel dilakukan secara total (total sampling) dengan melibatkan seluruh siswa kelas XI program teknik pengelasan di SMK Negeri 1 Guguak, sejumlah 34 siswa. Hasil analisis hipotesis menunjukkan nilai korelasi Pearson bernilai 0,466, menandakan hubungan sedang yang berada pada range 0,40 hingga 0,599. Besarnya kontribusi fasilitas bengkel terhadap minat belajar siswa pada mata pelajaran las busur manual mencapai 22%, dihitung dengan mengkuadratkan nilai korelasi dan mengalikannya dengan 100%. Oleh karena itu, simpulkannya fasilitas bengkel mempunyai hubungan signifikan dengan minat belajar siswa program teknik pengelasan, dengan tingkat kontribusi sebesar 28%.Siswa diharapkan optimal dalam menggunakan fasilitas bengkel, memanfaatkan waktu pembelajaran untuk meningkatkan keaktifan baik selama pembelajaran maupun praktek serta memperhatikan fasilitasnya guna mendukung minat belajar siswa selama praktek.

STUDI NILAI KALOR BRIKET CANGKANG KELAPA SAWIT SEBAGAI BAHAN BAKAR PADAT Fauzun, Hudri; Nurdin, Hendri; Lapisa, Remon; Primandari, Sri Riski Putri
Jurnal Vokasi Mekanika (VoMek) Vol 6 No 3 (2024): Jurnal Vokasi Mekanika
Publisher : Departemen Teknik Mesin Fakultas Teknik Unversitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/vomek.v6i3.714

The fuel oil energy source used is currently experiencing a fuel supply shortage, so it is necessary to have alternative energy sources with renewable and environmentally friendly raw materials to anticipate the increasingly depleting oil fuel sources. One of them is utilizing biomass energy with agricultural waste as raw material which is processed into briquettes. The material used in this research is palm oil shells using tapioca adhesive which will be processed into briquettes as an alternative fuel. Through the process of making briquette products with variations in the composition of the mixture provided, quality calorific value can be achieved. The research results showed that the highest calorific value of palm oil shell briquettes was found in the 80% : 20% mixture variation, namely 13428.5904 Kj/Kg, and the lowest calorific value was found in the 60% : 40% mixture variation, namely 9139.76928 Kj/Kg .

Characteristics of Calorific Value of Briquettes Made From Cymbopogon Citratus Waste As an Alternative Fuel Nurdin, Hendri; Wagino, Wagino; Sari, Delima Yanti; Siregar, Batu Mahadi
Teknomekanik Vol. 5 No. 1 (2022): Regular Issue
Publisher : Universitas Negeri Padang

Product diversification through Cymbopogon citratus briquettes as an alternative fuel for the development of renewable energy. The waste from the Cymbopogon citratus production process is a potential source of renewable energy that can be used as briquettes. This is an alternative to reduce dependence on fuel oil energy which is the main need for ordinary people. The purpose of developing Cymbopogon citratus waste briquettes with various variances and the use of tapioca adhesive, in obtaining the characteristics of the calorific value of briquettes. The method of making briquettes by using a press and optimizing the composition of the appropriate mixture as an effort to get the calorific value. From this research, the calorific value of Cymbopogon citratus briquettes is 8230.65 kJ/kg at a percentage mixture of 90 : 10 and its density is 394.90 kg/m3. From the acquisition of these characteristic values, it can be recommended as an alternative fuel in an effort to develop renewable energy in the utilization of lemongrass waste.

The influence of processing temperature on the mechanical properties of recycled PET fibers Fauza, Anna Niska; Qalbina, Fitrah; Nurdin, Hendri; Ambiyar, Ambiyar; Refdinal, Refdinal
Teknomekanik Vol. 6 No. 1 (2023): Regular Issue
Publisher : Universitas Negeri Padang

Study towards the recycling of PET waste has arisen in the last decades. One of the most widely used methods was the mechanical recycling process due to its simplicity and low cost of production. In this research, PET waste obtained from the disposable water gallon containers was used to produce recycled PET fibers for textile applications. The PET fibers were prepared using the extrusion technique by varying the processing temperatures, i.e., 200, 210, 220, 230, and 240°C. The diameter, FTIR analysis, XRD analysis, and mechanical properties of the PET fibers at various processing temperatures were studied. The results showed that the optimum processing temperature for preparing recycled PET fibers was 210°C with a diameter of 0.23 mm, a degree of crystallinity of 8.9%, a tensile strength of 70.4 MPa, and an elongation at break of 83.6%. In conclusion, PET waste shows a promising application to be processed as recycled PET fibers for textile applications.

OPTIMASI PARAMETER PEMESINAN TERHADAP KEKASARAN PERMUKAAN BAJA EMS 45 PADA PROSES FINISHING MESIN BUBUT KONVENSIONAL Putra, Ilham Rinaldo; Indrawan, Eko; Nurdin, Hendri; Syahri, Budi
Jurnal Vokasi Mekanika (VoMek) Vol 4 No 2 (2022): Jurnal Vokasi Mekanika
Publisher : Unversitas Negeri Padang

Kualitas permukaan benda kerja disebabkan oleh faktor parameter pemesinan, faktor tersebut ialah kecepatan spindel dan kecepatan pemakanan. Permasalahan kekasaran akibat parameter pemesinan perlu diteliti dan dikaji agar diketahui seberapa besar pengaruhnya. Penelitian ini bermaksud agar kecepatan spindel dan kecepatan pamakanan diketahui seberapa besar pengaruhnya terhadap kekasaran benda kerja. Eksperimen model taguchi digunakan pada riset ini. Taguchi digunakan agar kualitas dapat diperbaiki dengan penentuan parameter optimal agar kekasaran yang diperoleh lebih baik. Spesimen yang diuji ialah baja EMS 45 diamemter 25 mm, panjang 90 mm, dengan dalam pemakanan 0,2 mm. penelitian ini menggunakan 3 variasi putaran spindel dan 3 variasi laju pemakanan yaitu putaran spindel 1459 rpm, 1658 rpm dan 1990 rpm dan laju pemakanan 0.040 milimeter/revolution, 0.120 milimeter/revolution dan 0.200 milimeter/revolution. kesimpulan yang diproleh dari riset ini ialah kecepatan putaran dan laju pemakanan berpengaruh terhadap hasil kekasaran dengan persentase kontribusi terbesar ialah kecepatan putaran dengan kontribusi 78.67% pada analysis of variance rata-rata sedangkan pada SNR memberikan kotribusi 69,87%. Kontribusi laju pemakanan berkontribusi sebesar 11.63% pada ANOVA nilai rata-rata dan 10.03% pada SNR. Parameter pemesinan optimal pada penelitian ini ialah kecepatan spindel pada setingan 1990 rpm dengan laju pemakanan 0.200 milimeter/revolution. Parameter pemesinan yang telah ditentukan dengan optimal diharapkan mampu memperoleh kekasaran yang optimal.

Co-Authors - Primawati A, Affandi A, Yufrizal Abdillah, Nur Ichsan Abdur Rahman Abimayu, Dimas Afabek, Randa Algery, Fauzan Ambiyar, Ambiyar Ambyar Ambyar Anaperta, Yoszi Mingsih Andre Kurniawan Andre Kurniawan Andri, Rezky Arafat, Andril Ardi, Julio Lukmanul Arwizet Arwizet, Arwizet Arya Rudi Nasution Bagas Santoso Budi Syahri Bulkia Rahim Caniago, Yusuf Dani Harmanto Darmawi Darmawi Darmawi Darmawi Dayu Alfaridh Delima Yanti Sari Denda Afri Juliadi Dimas Abimayu Dinul, Fadhilah Ikhsan Dori Yuvenda Eko Indrawan Elshaarani, Tarig Erizon, Nelvi F, Fadhlurrohman Fadhilah Fadhilah Fajar Fitra Fathi Aulia DZ Fauza, Anna Niska Fauzi, Azmul Fauzun, Hudri Febri Prasetya Fikri, M Fitra, Fajar Fitrah Qalbina Fitrah Qalbina Habibie, Farhan Hakiim, Evan Handayani, Meisuri Harahap, Doa Harmanto, Dani Hasanuddin Hasanuddin Hasanuddin WS Hastuti Hastuti Hendra Irawan Hidayat, Nailul Indradewa, Rhian Irzal Irzal Irzal, Irzal Junil Adri Kassimov, Farid Kenzhaliyev, Bagdaulet Kenzhaliyevich Kenzhaliyev, Elnar khairul umurani Laghari, Imtiaz Ali Lilik Darwito M Febriyan Baruna Putra Mansur Mansur Maryonda, Andre Muhammad Firdaus Muhammad Firdaus Muhammad Rizki Mulianti Nabawi, Rahmat Azis Nasruddin Nelvi Erizon Niko Adima Brawira Pramudya, Aldhi Primandani, Sri Rizki Putri Primandari, Sri Riski Putri Primawati Primawati, Primawati Purwantono Purwantono Purwantono, Purwantono Putra, Ilham Rinaldo Putra, Randi Purnama Rahmad Robby Alzam Rahmadiawan, Dieter Rahmat, Febri Ramadhan, Arya Famas Ramadhan, Ozi Refdinal, Refdinal Refdinal, Refdinal Remon Lapisa Resqy Dwicandra Reza Ramadhan Prabulingga Rifelino Rifelino Riski Camarta Rodesri Mulyadi Rudy Anarta Saddikin, M Santoso, Bagas Saputra, Ilham Dwi Siregar, Batu Mahadi Sitorus, Purnama Anandi Sri Rizki Putri Primandari Syahril Syahril Toto Sugiarto Tsung-Liang Wu Wagino Wanda Afnison Wari, Alan Waskito Waskito Waskito Waskito Waskito, Waskito Wulansari, Rizky Ema Ya, Kyaw Zay Yoga Andika Yolli Fernanda Yufrizal Yufrizal Zainal Abadi Zhuang, Wei-Ting

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