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All Journal Jurnal Pendidikan Teknologi dan Kejuruan Rekayasa Mesin INVOTEK: Jurnal Inovasi Vokasional dan Teknologi Jurnal Penelitian Pendidikan IPA (JPPIPA) JURNAL PENDIDIKAN TAMBUSAI JETL (Journal Of Education, Teaching and Learning) Jurnal Teknik Mesin Jurnal Teknologi Informasi dan Pendidikan JRTI (Jurnal Riset Tindakan Indonesia) EDUTEC : Journal of Education And Technology Jurnal Vokasi MOTIVECTION : Journal of Mechanical, Electrical and Industrial Engineering Reswara: Jurnal Pengabdian Kepada Masyarakat Suluah Bendang: Jurnal Ilmiah Pengabdian Kepada Masyarakat SELODANG MAYANG Teknomekanik Multicience International Journal of Multidisciplinary Research and Literature (IJOMRAL) Jurnal Vokasi Mekanika Journal of Social And Economics Research Journal of Community Service Tsaqofah: Jurnal Penelitian Guru Indonesia CONSEN: Indonesian Journal of Community Services and Engagement Jurnal Aplikasi IPTEK Indonesia Al-DYAS : Jurnal Inovasi dan Pengabdian kepada Masyarakat Journal of Engineering Researcher and Lecturer Ranah Research : Journal of Multidisciplinary Research and Development International Journal of Multidisciplinary Research of Higher Education (IJMURHICA) Journal of Innovative and Creativity IJIMCE : International Journal of Innovation in Mechanical Construction and Energy Venus: Jurnal Publikasi Rumpun Ilmu Teknik journal of social and economic research Jurnal Pendidikan MIPA IJIS Edu : Indonesian Journal of Integrated Science Education

Arwizet Arwizet, Arwizet

Departemen Teknik Mesin Universitas Negeri Padang

Author-ID : 1756694

Religion Aerospace Engineering Agriculture, Biological Sciences & Forestry Arts Humanities Automotive Engineering Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry 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 Environmental Science Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Library & Information Science Materials Science & Nanotechnology Mathematics Mechanical Engineering Nursing Physics Public Health Social Sciences Transportation Other

Published : 118 Documents Claim Missing Document

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Design and Testing of Belt Grinding Development Setiawan, Sepdirama; K, Arwizet; Syahri, Budi; Ambiyar, Ambiyar; Darmawi, Darmawi; A, Yufrizal
Teknomekanik Vol. 1 No. 2 (2018): Regular Issue
Publisher : Universitas Negeri Padang

The author observes that the use of belt grinding is still rare in the writer's own environment, both in the fields of education and small industries, because there are still many people who are fixated on ordinary grinders, and think that ordinary grinders are better in all work. The development of belt grinders has changed people's perspectives through the development that the authors have done, with increasing belt grinding functions through development which will certainly make belt grinders even more useful. This belt burrs are made and developed through pre-existing belt grinding shapes. The result of this development is a belt grinder which has a function more than the belt grinder which is already before. This belt burrs has three types of work functions, namely vertical, horizontal, and cutter, and also features speed control. With the development that the author does, of course, it will change people's perspectives because belt grinding has a function that is better than before and can better help the work of a grinding process.

Comparative Analysis Spindle Speed Constant with Cutting Speed Constant against Surface Roughness Gradual Turning Steel ST 37 on the NC PU 2A Machine Efendi, Defindo; A, Yufrizal; K, Arwizet
Teknomekanik Vol. 1 No. 2 (2018): Regular Issue
Publisher : Universitas Negeri Padang

Parameters of spindle speed and cutting speed affect surface roughness in the turning process. The purpose of this research is to know the comparison of the level surface roughness resulting from the parameters of spindle speed constant and cutting speed constant. The method of this research is experimental research, by performing gradual turning process on the steel ST 37 specimens in the NC PU 2A EMCOTURN 120 machine. The number of specimens is 6 specimens, each specimen is gradual turned as much 3 levels, each level is tested as much 3 points of surface quality using "Surface Tester Mitutoyo SJ-201P". The results of the research were analyzed using descriptive statistics by taking the average value of the two parameters. Based on the analysis of the data from the results of the research conducted, the surface roughness produced using a cutting speed constant (G96) is better than the spindle speed constant (G97). Cutting speed constant is more stable when cutting in gradual turning.

Comparative Study of Performance Test of Refrigerators and Its Relationship with Electric Power Consumptions Karudin, Arwizet
Teknomekanik Vol. 2 No. 2 (2019): Regular Issue
Publisher : Universitas Negeri Padang

Refrigerator has a significant role as a tool for food storage. Stored foods in refrigerator can be maintain the food quality and delay the stale. Currently, the refrigerator not only used at home but also in offices or shops that sell foods. It could imagine if without refrigerator, the foods will fast stale and lost their quality. This Research aim to know the performance parameters of refrigerator among others consumption total refrigerator power compared to with the resulting performance or Energy Efficiency Ratio (EER), and characteristics decline temperature in cabin at range time certain with two of brands refrigerator on the market. Research about of the refrigerator performances follows ISO-7371-1985 standards, European Standard EN 153, British Standards Institution 1990. Results obtained to refrigerator tested that average input power for refrigerator A is 83.3 Watts and input power inside condition stable of 66 Watts, EER 1.84 and the minimum temperature can be achieved in cabin refrigerator in time for 5 hours; -11.8 ℃ in the above of cabin, -6.2 ℃ in the center of cabin and 5.1 ℃ in the bottom of cabin, temperature product is -14.4 ℃. For refrigerator B average input power is 85.8 Watts and input power inside condition stable is 74 Watts, EER 1.64 and the minimum temperature can be achieved in cabin refrigerator; -5.5 ℃ in the above of cabin, 0.9 ℃ in the middle of cabin and 1.7 ℃, temperature product is -9.8 ℃.

Performance Analysis of Water Heating System by Using Double Glazed Flat Plate Solar Water Heater Putra, Andika; K, Arwizet; Fernanda, Yolli; Sari, Delima Yanti
Teknomekanik Vol. 4 No. 1 (2021): Regular Issue
Publisher : Universitas Negeri Padang

Nowadays, the use of solar energy is incredibly important to be increased since solar energy is renewable energy and also does not cause pollution. To harness solar energy, a solar collector device is needed to convert solar energy into heat energy. This study aimed to analyze the heat transfer in the flat plate solar collector which is used as a source of thermal energy in the water heating process for bathing. A double-glazed solar collector was used to absorb solar thermal energy and then transferred it to a water pipe. The pipe material used copper which has a very high conductivity value with an outer diameter of 15.7 mm. The plate collector used aluminium plates because they have high thermal conductivity. The dimensions of the collector frame were 150 cm long, 80 cm wide and 80 cm high. The collector frame was made of wood and covered with an insulator from coconut fibre with a thickness of 8 cm, with a tilt angle of 15˚. Based on the experimental process, the collector temperature was taken by using a thermocouple in order to heat the water which the inlet temperature in a bucket was 28˚C and the outlet water temperature during the experiment was 40˚C.

Kajian Numerik Pengaruh Sudut Bukaan Guide Vane terhadap Daya Output dan Efisiensi Turbin Crossflow pada Pltmh Lubuk Kilangan Kota Padang Aldi Alfarizi; Arwizet K; Purwantono Purwantono; Remon Lapisa
Jurnal Pendidikan Tambusai Vol. 8 No. 1 (2024): April 2024
Publisher : LPPM Universitas Pahlawan Tuanku Tambusai, Riau, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/jptam.v8i1.13632

Penelitian ini bertujuan untuk menganalisis pengaruh sudut bukaan guide vane terhadap daya output dan efisiensi turbin crossflow pada Pembangkit Listrik Tenaga Mikro Hidro (PLTMH) Lubuk Kilangan, Kota Padang. Pendekatan penelitian yang dilakukan melibatkan pemanfaatan metode simulasi Computational Fluid Dynamic (CFD) dengan menerapkan model turbulensi k-Epsilon RNG, yang diimplementasikan melalui perangkat lunak Ansys Fluent versi 2023 R2. Langkah simulasi CFD meliputi pembuatan desain menggunakan software Solidwork 2020 dengan memvariasikan besar sudut bukaan guide vane turbin yaitu sudut 53°, 64°, 75°, dan 86°, kemudian desain diekspor ke software Ansys. Selanjutnya, dilakukan proses meshing dan setting boundary condition. Langkah terakhir yaitu proses solution dan result untuk menampilkan output simulasi. Dari simulasi yang telah dilakukan didapatkan hasil bahwa sudut bukaan guide vane berpengaruh terhadap daya ouput dan efisiensi turbin crossflow, dimana semakin kecil sudut bukaan guide vane, daya output dan efisiensi turbin semakin meningkat. Daya tertinggi diperoleh pada sudut bukaan 53° yang menghasilkan daya ouput sebesar 7,16 kW dan efisiensi 81,1%.

STUDI PERBANDINGAN HASIL PRAKTIKUM PEMBELAJARAN PROJECT BASED LEARNING DENGAN PEMBELAJARAN LANGSUNG PADA SISWA KELAS X TEKNIK PERMESINAN DI SMK NEGERI 1 TANJUNG RAYA Oky Erlangga; Arwizet K; Purwantono
Journal of Social and Economics Research Vol 2 No 2 (2020): JSER, December 2020
Publisher : Ikatan Dosen Menulis

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.54783/jser.v2i2.47

Penelitian ini bertujuan untuk mengetahui perbedaan penerapan model pembelajaran project based learningterhadap hasil belajarmata pelajaran Teknologi Mekanik kelas X Teknik Permesinan semester genap di SMK Negeri 1 Tanjung Raya Tahun Ajaran 2015/2016.Penelitian ini berpusat pada masalah rendahnya hasil belajar siswa pada mata pelajaran gambar teknik dimana salah satu faktor penyebabnya adalah kurang tepatnya pemilihan model pembelajaran oleh guru. Metode ini yaitu penelitian eksperimen.Pengambilan sampel dengan teknik simple random sampling.Kelas kontrol adalah X TM 1 menggunakan model pembelajaran langsung dan kelas eksperimen adalah X TM 2 menggunakan model pembelajaranprojectbased learning. Teknik pengumpulan data dari nilai akhir hasil belajar dianalisis untuk uji homogenitas dan uji hipotesis. Untuk mengetahui kesamaan rata-rata siswa dilakukan pre test nilai semester ganjil diambil sebagai pre test atau test awal. Setelah dilakukan uji homogenitas maka diperoleh hasil rata-rata pre test untuk kelas control mendapatkan hasil nilai rata-rata total sebesar 74 gabungan nilai pengetahuan dan keterampilan, sedangkan untuk kelas eksperimen mendapat hasil nilai rata-rata total sebesar 75 gabungan dari nilai pengetahuan dan keterampilan.Hasil penelitian kelas eksperimenmendapatkan nilai rata-rata 83, sedangkan kelas kontrol mendapatkan nilai rata-rata 78. Hasil perhitungan hipotesis pada taraf signifikan α=0,05 didapatkan thitung> ttabel yaitu (2,92> 1,684), karena thitung besar dari ttabel,maka hipotesis nol (H0) ditolak dan hipotesis alternatif (Ha) diterima. Model pembelajaran project based learningmemberikan peningkatan hasil belajar yang lebih besar yaitu 7,7 % sebanyak 20 siswa memperoleh nilai di atas KKM (>75) dibandingkan dengan model pembelajaran langsung hanya 12 siswa memperoleh nilai di atas KKM (>75). Disimpulkan bahwa model pembelajaran project based learninglebih baik dibandingkan dengan model pembelajaran langsung.

Effect of Load Cooling on the Performance of Steam Power Plant Condensers Adri, Junil; Arwizet, Arwizet; Ariyanto, Dedi
International Journal of Multidisciplinary Research of Higher Education Vol 7 No 3 (2024): (July) Theme Education, Sciences, Engineering and Economic
Publisher : Islamic Studies and Development Center in Collaboration With Students' Research Center Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/ijmurhica.v7i3.226

This study analyzes the impact of cooling load on condenser performance in the Steam Power Plant. The condenser, as a heat exchanger, plays a critical role in condensing steam from the turbine back into liquid form, thus maintaining the continuous cycle of the steam power system. Survey-based research was conducted, with data collected on steam and cooling water temperatures at various stages. The steam inlet and outlet temperatures were recorded at 514°C and 465°C, respectively, with cooling water entering at 32.9°C and exiting at 38.9°C at a flow rate of 100 m³/h. Using the Log Mean Temperature Difference method, initial and final temperature differences were calculated at 453°C and 465°C. Results suggest that tube fouling or leakage contributes to declining condenser efficiency, which can significantly reduce power plant performance. This study highlights the importance of regular maintenance and monitoring of condenser units to optimize thermal efficiency and power generation output.

The freedom to learn-independent campus curriculum for shielded metal arc welding: A teaching module development Butar, David Beckham Butar; Erizon, Nelvi; Karudin, Arwizet; Primawati, Primawati
Jurnal Pendidikan Teknologi Kejuruan Vol 7 No 4 (2024): Regular Issue
Publisher : Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/jptk.v7i4.40223

This study was triggered by the existing teaching modules for the Shielded Metal Arc Welding (SMAW) subjects taught at vocational high schools, which do not align with the Freedom to Learn-Independent Campus (FLIC) learning objectives, and do not provide a systematic organization. In order to enhance the learning experience, this research developed a new learning module that integrated Problem-based Learning (PBL), promoting critical thinking, and the practical application of theoretical concepts, following the FLIC curriculum. Utilizing a Research and Development (R&D) approach with the Instructional Design Institute (IDI) model, this study involved two welding instructors and four lecturers as validators to assess the content and usability of the module. The IDI model comprised three steps: instructional (define), development (develop), and institute (evaluate). The research findings regarding the validity assessment by subject matter experts yielded a final validity score of 0.924, while media and language experts provided a score of 0.936, meeting the valid criteria. The practical usability test of the learning module resulted in a score of 94%, indicating that it is highly practical for students to use as learning media. Based on the validity and practicality assessments of the developed module, it can be concluded that the SMAW learning module is highly practical to use as teaching media, aligning with FLIC curriculum.

The Influence of External Cooling Load on the Distribution of Temperature and Humidity in Conditioned Spaces Karudin, Arwizet; Sharma, Jai Kumar; Leni, Desmarita; Abbas, Muhammad Rabiu; Adriansyah, Adriansyah
IJIMCE : International Journal of Innovation in Mechanical Construction and Energy Vol. 1 No. 1 (2024): IJIMCE : International Journal of Innovation in Mechanical Construction and Ene
Publisher : Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/ijimce.v1i1.8

Air conditioning is not only important for the comfort of occupants in a building but also for various industrial processes. In the air conditioning process, a device called an Air Conditioner (AC) is required. The AC load can originate from inside the room and from outside the room. This study aims to determine the influence of increased cooling load from outside the room on the distribution of temperature and air humidity inside the conditioned room. The method used in this study involved conditioning four rooms. Two rooms of almost the same size were equipped with two AC units each, while the other two rooms used one AC unit each. Temperature and air humidity data inside the rooms were recorded every 20 minutes, as well as the outside air temperature. Dry bulb thermometer (Tdb) and wet bulb thermometer (Twb) were used to record temperature and humidity data, along with an environmeter. The research data were processed using available equations and with the assistance of a psychrometric chart. The research findings revealed that the average distribution of temperature and air humidity in the meeting room and office headroom of the Pertamina DP-LPG Office in Binjai was 20°C-23°C and 59%-65%. For the distribution office and sales service room of the Pertamina Fuel Filling Terminal in Kisaran, the distribution of temperature and air humidity was 25°C-29°C and 62%-66%. From the test results, it can be concluded that the distribution of temperature and air humidity is highly influenced by the capacity of the AC units and the cooling load entering the room.

Effect of Discharge and Pressure on the Performance of Crossflow Turbine Simulation System Rahmat Afdhol; Arwizet Karudin; Remon Lapisa; Andre Kurniawan; Soretire Lanrewaju Kamorudeen
IJIMCE : International Journal of Innovation in Mechanical Construction and Energy Vol. 1 No. 3 (2024): IJIMCE : International Journal of Innovation in Mechanical Construction and Ene
Publisher : Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/ijimce.v1i3.41

The demand for electrical energy is increasing. Electricity supply in Indonesia is not yet evenly distributed. Indonesia's electrification ratio is only 99.63%. Generally, areas that have not been electrified are rural areas. It is necessary to utilize water energy sources for power generation. This research was conducted with a simulation tool from a micro hydro power plant with a crossflow turbine. The use of this turbine is because it is easy in terms of cost and manufacturing. The research was given an input source from a pump with a double pump system and a single pump system. Each system is given a variation of 100%, 75% and 50% openings. Data collection time is carried out for 90 minutes on each system and opening. From the research results obtained current, voltage, and output power. In the double pump system with 100% opening is relatively greater than 75% and 50% opening in the same system and in the single pump system. The maximum output current obtained in this study is 0.09 amperes with a double pump system opening 100% and the minimum output value is 0.02 amperes in a single pump system opening 50%. The maximum output power obtained in this study was 1.81 watts with a 100% opening dual pump system and a minimum output value of 0.32 watts in a 50% opening single pump system. The maximum output voltage obtained was 21.5 volts at 50% opening of the dual pump system, and the minimum output voltage was 15.8 volts at 50% opening of the single pump system. A large discharge will provide a large current, voltage and power output because it is able to crush the turbine with a relatively large speed. Discharge will affect the pressure and flow that occurs in the pipe, because the amount of discharge will be linear with the amount of pressure. The use of double pumps will get high efficiency with a large discharge. The greatest efficiency occurs when the double pump system.

Co-Authors - Primawati A, Yufrizal Abbas, Muhammad Rabiu Abd. Aziz Abd. Aziz Abdul Aziz Ade Habibbullah Adriansyah Adriansyah Aggrivina Dwiharzandis Agia Kulkarni Preti Agusriza Almalik Agustian, Rizki Ahmad Arif Ahmad Arif Ahmad Natafian Fauzi Ahmad, Salamuddin Akbar, Yaumil Akhmad Rais Aldi Alfarizi Aldi Alfarizi Alvien Khardin Ambiyar, Ambiyar Amir, Irfan Ananda, Opi Andika Putra Andika Saputra Andre Kurniawan Andre Kurniawan Andre Kurniawan Anjelika, Dea Qori Anuar, Bakri Anugrah, Pinto Arafat, Andri Arafat, Andril Arief Juneirul Pratama Ariyanto, Dedi Aryasandy, Nensy Asep Bunyamin Azel Rozandi Azmil Azman Bayu Rianto Berliansyah, Aqilvin Berry Delfi Andra Budi Syahri Bulkia Rahim Bunyamin, Asep Butar, David Beckham Butar Chrismondari, Chrismondari Daniel Fifaldi Nardo Darmawi . Delima Yanti Sari Denisa Putri Jadenis Desmarita Leni Deviya Aprilman Dodi Ariska Doni Saputra Dori Yuvenda Efendi, Defindo Efriwan Efriwan Eko Indrawan Endri Rizki Anugrah Erdi, Putri Nurhalimah Erizon, Nelvi Erlanda, Rendi Esa Hafizul A Fachrur Rozi Fachry Novrianda Faisal, Afdal Fajri Ramadhan Fakhrur Rozi, Fakhrur Febri Prasetya Fiqi Gusti Irawan Firman Omni Saputra Fitrah Qalbina Giatman, M Gito Okto Rito FM Gusta Nanda Habibbullah, Ade Hafiz Alfadri Ramadhan Haris Haris Haris Haris, Haris Hasan Maksum Hasanuddin Hasanuddin Hasanuddin WS Helga Yermadona Hendra Hendra Hendra, Carlen Muhammad Hendri Nurdin Idra Putra Irfan Amir Irfan, Abdillah Irma Yulia Basri Irzal Irzal Jalil, Muhammad Jasman Jasman Jasman Jasman Jasman Junil Adri Khairuni Delfi Anisa Krismadinata Krismadinata Krismadinata Krismadinata kusuma, Yuda Perdana M. Agus Trian Putra M.Y. Setiawan Maresta, Felia Martias Martias Miftahul Arrafi Monica, Okzalia Muchlisinalahuddi Muchlisinalahuddi Muhammad Akhbar Muhammad Anwar Muhammad Aulia Ifsan Muhammad Lathif Mahendra Muharir Muharir Muharni, Riza Mulianti Mulyanti Muslim Muslim Nabawi, Rahmat Azis Nadia Utari Nasrullah Nasrullah Nasution, Ridhollah Nelvi Erizon Nidya Meliza Putri Nizwardi Jalinus Nofri Helmi Nofri Helmi Helmi Nogi Handepi Nugraha, Ikhsan Dani Nurdin Hendri Nurfajri Nurfajri Nurfajri Nurfajri, Nurfajri Nuzul Hidayat, Nuzul Oky Erlangga Oky Erlangga Okzama, Rebi OSKAH DAKHI Ovi Marendah Pasaribu, Reynaldy Peng, Lim Hooi Prasetya, Kresna Adi Primawati Primawati Primawati Primawati, Primawati Purnama, Andreadi Purwantono Purwantono Purwantono purwantono purwantono Putra, Idra Putra, Rido Putri Nurhalimah Erdi Rahmad Robby Alzam Rahmat Afdhol Rahmat Syukri Ramfit Novari Randhy Alfarishi Rebi Okzama Refdinal Refdinal Refdinal Refdinal, Refdinal Refdinal, Refdinal Remon Lapisa Remon Lapisa Remon Lapisa Remon Lapisa Rifelino Rifelino Rio Ramadhan Rivanol Chadry Rizka Rizka Rizka Rizka, Rizka Rizki Ramadhan Nasution, Muhammad Rizky Ema Wulansari Rizky Ema Wulansari Robby, Muhammad Robert, Julio Ruzita Sumiati Said Fuad Amry Salamuddin Ahmad Sari, Fretina Setiawan, Sepdirama Shabir Ahmed Sharma, Jai Kumar Sihombing, Ahmad Rifai Simon, Ryan Ananda Soretire Lanrewaju Kamorudeen Sri Rizki Putri Primandari Steven Thomas Anggriyanto Sukardi Sukardi Supardi Supardi Suparno Suparno Suparno Suparno Suparno Syah, Muhammad Rayhan Syukri, Rahmat Tamasya, Fido Delfri Toto Sugiarto Totoh Andayono Usin Usin Usmeldi Usmeldi Veri Budiawan Arham Vicky Prasetyo Wahyu Ananda Putra Wahyudi Fachrul Syafra Wakhinuddin WAKHINUDDIN SIMATUPANG Waskito Waskito Waskito Waskito, Waskito Winaldi Alfonis Yandra, Muvi Yanriko, Armizal Yanto, Doni Tri Putra Yazmendra Rosa Yoga Novrialdy Yolli Fernanda Yolli Fernanda Yufrizal A Yufrizal Yufrizal Yufrizal Yufrizal Yulira Emputri Yurika Putri Zainal Abadi Zainal Abdi

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