Article Per Year (5 Year)
p-Index From 2020 - 2025
2.771
P-Index
This Author published in this journals
All Journal Jurnal Sains dan Teknologi Mechatronics, Electrical Power, and Vehicular Technology Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains ICON-CSE Jurnal Pengabdian UntukMu NegeRI JET (Journal of Electrical Technology) Dinamisia: Jurnal Pengabdian Kepada Masyarakat International Journal of Electrical, Energy and Power System Engineering (IJEEPSE) Unri Conference Series: Community Engagement Journal of Ocean, Mechanical and Aerospace -science and engineering- (JOMAse)
Fri Murdiya, Fri
Universitas Riau
Religion Aerospace Engineering Humanities 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 Social Sciences Other

Published : 56 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 56 Documents
Search

 1   2   3   4   5 
Rancang Bangun Generator Ozon Koaksial Sulistianto, Agus Ernawan; Murdiya, Fri; Hamdani, Eddy
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 8 (2021): Edisi 1 Januari s/d Juni 2021
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

The developmentof science and technology, especially in industry, can have both positive` and negative effects.`One of the negative `effects is the higher pollution in soil, water and air. The use of ozone has now been widely applied in various fields, for example as a disinfectant for drinking water treatment, disinfecting germs, sterilizing medical devices and preserving food ingredients. Ozone can be generated by the dielectric barrier discharge method which is generally used as a method of generating ozone supplied with high voltage or also known as high voltage plasma generators. High voltage plasma occurs in the dielectric barrier discharge air gap due to the failure of air to maintain its insulating properties. The type of electrode used and the gap distance in the dielectric barrier dischrage test can affect the amount of plasma produced, and plasma also affects the yield of ozone concentration. In this research, a coaxial ozone generator will be designed with a variation of 3 inner electrodes, variations in the flow rate of oxygen input and the presence `or absence of the `influence of the magnetic field on` the ozone produced.    Keywords: Science, Ozone, Dielectric Barrier Discharges, Electrodes, Plasma, Magnetic Field.
Implementasi Plasma Tegangan Tinggi Untuk Pengolahan Limbah Cair Industri Minyak Sawit nadeak, Parade; Murdiya, Fri; Andrio, David
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 7 (2020): Edisi 2 Juli s/d Desember 2020
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Water pollution due to waste has become a concern of environmental activists recently. Many technologies have become alternatives to overcome this, such as the use of high voltage plasma.High-voltage plasma technology is included in green technology because it does not use chemicals and with high-voltage plasma technology, processing waste is faster, does not require large areasof land and is environmentally friendly. This research aims to reduce Biochemical Oxygen Demand (BOD) compounds, chemical Oxygen demand (COD), total suspended solid (TSS) by utilizing highvoltage plasma. The method used is to generate plasma using a Neon Power Supply transformer with the voltage of 8 kV and with a frequency of 21 kHz. The plasma is generated by using rod andplate electrodes. Based on the results of plasma experiment, it is able to reduce BOD, COD, TSS compounds in palm waste. In this study the test was carried out with different distances of 2 mmand 4 mm with a time of 20 minutes, 30 minutes, 40 minutes and 60 minutes. This test shows that a distance of 2mm is faster to reduce BOD, COD TSS than a distance of 4mm.Keywords: Plasma, high voltage, liquid waste, BOD, COD, TSS
Pengaruh Induksi Magnet Permanen Dengan Empat Posisi Pada Dielectric Barrier Discharge Mangapul, Toni; Murdiya, Fri
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 7 (2020): Edisi 2 Juli s/d Desember 2020
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Dielectric barrier discharge technology is widely used in various area as a technology for producing electric plasma. One of the uses of dielectric barrier discharge is to produce ozone. The dielectric barrier discharge configuration consists of two electrodes flanking two dielectrics, air dielectric and solid dielectric. Dielectric discharge occurs in the air gap called plasma. The resulting plasma is not only affected by discharge equipment, but can also be affected by external field effects such as UAV radiation and magnetic fields. This study uses a four position permanent magnet on the dielectric barrier discharge with the magnets located on the top and bottom sides of the electrodes as well as the right and left side of the air gap with three variations of magnetic conditions, namely variation I (Conditions of top and bottom magnet attraction and magnet attraction right and left), variation II (Conditions of top and bottom magnet attraction and repulsion of right and left magnet), variation III (Conditions of top and bottom magnet repulsion and attraction of right and left magnet). The research results showed the highest intensity in variation I. Discharge current obtained from testing was the variation I is greater than variation II and variation III. The results of testing the concentration of ozone dielectric barrier discharge four positions found that the highest ozone concentration in variation I while the lowest ozone concentration in variation III. Keyword: dielectric barrier discharge,plasma,ozon
Pemanfaat Energi Matahari Untuk Pompa Air Dan Penerangan Dalam Program Pengabdian Kepada Masyarakat Fri Murdiya; Amir Hamzah; Azriyenni Azhari Zakri; Nurhalim Nurhalim; Firdaus Sutan; Suwitno Suwitno
Jurnal Pengabdian UntukMu NegeRI Vol 4 No 2 (2020): Pengabdian Untuk Mu negeRI
Publisher : LPPM UMRI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37859/jpumri.v4i2.2109

Abstract

Community service program is a mandatory activity for higher eduacation in community empowerment and development. These activities include training programs and application of appropriate technology including the utilization of solar energy for water pumps in orphanages in Rokan Hulu regency and the street lighting program in Simpang Petai village, Kampar regency in Riau province. This activity also considers to the obstacles faced by the community with offering and implementing appropriate technology to them as beneficiaries. This activity takes place with the involvement of students in work and lecture program (KKN) that integrated with community service activities.It is shown that the community as beneficiaries have joined diligently and received assistance with this program by implementation of solar water pump and street lighting. The evaluation of this activity shows that collaboration continues between the community and the Department of Electrical Engineering, Faculty of Engineering, University of Riau and the communitis feel helped and there is an improvement in the electricity infrastructure in their village. This activity was carried out in a fostered village by the Faculty of Engineering, University of Riau.
The performance of surface barrier discharge in magnetic field driven by half bridge series resonance converter Fri Murdiya; Febrizal Febrizal; Amun Amri
Journal of Mechatronics, Electrical Power and Vehicular Technology Vol 8, No 2 (2017)
Publisher : National Research and Innovation Agency

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/j.mev.2017.v8.95-102

Abstract

This paper reports an application of a series resonance converter as a high voltage generator to drive a surface barrier discharge with a magnetic field. The high voltage was about 5 kV with the frequency of 25 kHz. It was connected to circular aluminum plates as the anode electrode and a rectangular aluminum plate as the cathode electrode. These electrodes were separated by a glass dielectric as the barrier. The experiment result indicated that the discharge current with magnetic field was lower than without magnetic field. The plasma on the surface barrier with magnetic field was more luminous than without magnetic field. It also indicated that the area of Lissajous diagram for the surface barrier discharge with magnetic field was slightly decreased than without magnetic field. It could be concluded that the magnetic field affects the plasma progress on the surface barrier. Molecular dynamic (MD) could be used in understanding the ionization process of air molecules. The ionization energies for CO2, N2, and O2 were 0.0502 kcal/mol, 0.0526 kcal/mol and 0.430 kcal/mol, respectively in 1,000 seconds. The highest ionization energy was O2.
The effect of lightning impulse characteristics and line arrester to the lightning protection performance on 150 kV overhead lines: ATP-EMTP computational approach Fri Murdiya; Febrizal Febrizal; Cecilia Stevany; Havel Alindo Sano; Firdaus Firdaus
Journal of Mechatronics, Electrical Power and Vehicular Technology Vol 10, No 2 (2019)
Publisher : National Research and Innovation Agency

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/j.mev.2019.v10.49-59

Abstract

This simulation study presents the effect of lightning strikes on the performance of arresters at 150 kV overhead lines. Lightning strikes have several parameters that affect the performance of line arresters (LA), namely lightning charge, and impulse energy. The simulation was attempted by injection of a direct strike to the ground wire with the peak voltage of 10 MV. The peak voltage was varied in terms of wavefront time (Tf) and the duration of lightning impulses (tau). In order to calculate current, charge and impulse energy of LA from various variations of Tf and tau, the trapezoidal numerical integration method is used. The current and impulse energy arising due to direct strikes and various variations of Tf and tau will be compared for each phase so that the influence of Tf and tau can be obtained from the performance of the LA and the current charge and impulse energy values are still within the limits of the IEEE C62.11 standard. The installation of LA and the position of arresters affected the peak voltage of lightning on the phase line when lightning struck it. The line arresters provide a drop in the peak voltage of lightning in phase lines. By installing line arresters in each tower, it will reduce the peak voltage of lightning on the phase line more significantly than the standalone line arrester. It is shown that the line arresters have to install at least six towers to reduce the peak voltage in the phase lines.
TELAAH PROSPEK MINYAK KELAPA SAWIT SEBAGAI MINYAK ISOLASI TRANSFORMATOR Fri Murdiya
Jurnal Sains dan Teknologi Vol 14, No 1 (2015): Jurnal Sains dan Teknologi
Publisher : Fakultas Teknik Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (350.104 KB) | DOI: 10.31258/jst.v14.n1.p%p

Abstract

Minyak kelapa sawit sebagai isolasi transformator daya menjadi hal yang menarik bagi para peneliti. Minyak kelapa sawit lebih ramah lingkungan dan berkesinambungan tersedia di Indonesia. Minyak kelapa sawit cocok untuk diterapkan pada transformator daya sebagai pengganti minyak mineral yang memiliki beberapa kekurangan yang mendasar. Secara studi kelayakan minyak kelapa sawit atau turunannya memiliki sifat yang mirip dengan minyak mineral. Dari pengujian laboratorium untuk tegangan tembus, peluahan berlahan (creeping discahrge) dan dinamika muatan ruang antara elektroda jarum dan pelat yang dicelupkan kedalam minyak kelapa sawit serta konduktifitas minyak, memberikan hasil yang baik. Sehingga prospek minyak kelapa sawit dikembangkan sebagai minyak isolasi pada transformator daya sangat menjanjikan.
Molecular Docking on Azepine Derivatives as Potential Inhibitors for H1N1-A Computational Approach Neni Frimayanti; Fri Murdiya; rossi passarella
ICON-CSE Vol 1, No 1 (2014)
Publisher : ICON-CSE

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Azepine are an important class of organic compounds. They are effective in a wide range of biological activity such as antifeedants, antidepressants, CNS stimulants, calcium channel blocker, antimicrobial and antifungal properties. In our continue efforts to search for a potent inhibitor for H1N1 virus using molecular docking. In this study, 15 azepine (ligands) derivatives were docked to the neuraminidase of A/Breving Mission/1/1918 H1N1 strain in complex with zanamivir (protein). The Cdocker energy was then calculated for these complexes (protein-ligand). Based on the calculation, the lowest Cdocker interaction energy was selected and potential inhibitors can be identified. Compounds MA4, MA7, MA8, MA10, MA11 and MA12 with promising Cdocker energy was expected to be very effective against the neuraminidase H1N1.
Analisis Tegangan Tembus Arus Bolak Balik Pada Minyak Nyamplung (Colophyllum Inophyllum) Sebagai Alternatif Isolasi Cair Luchman Wira Admaja; Fri Murdiya
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 5 (2018): Edisi 2 Juli s/d Desember 2018
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

This study is looking for the ratio of breakdown voltage between mineral oil and Colophyllum Inophyllum oil as an alternative of liquid insulation. The test of oil uses a yellowish half-ball electrode, yellowish ball electrode, and aluminium balls electrode. The value of oil breakdown voltage Colophyllum Inophyllum is higher than mineral oil. By test result, breakdown voltage that a yellowish half ball electrode is higher than by ball electrode and aluminium ball electrode. This study also varies electrode, gap space, and water level on Colophyllum Inophyllum oil to determine the effect of breakdown voltage. Less water level in oiled higher of value of breakdwon voltage is higher. To be alternative liquid insulation must fulfill with the standared spesifications liquid insulation with Colophyllum Inophyllum oil has been met some certain criterias such as breakdown voltage, flash point, viscocity, and water content. On the other side spesifications of density and pour point do not meet yet the standared spesifications of liquid insulation.Keywords: Liquid insulation,breakdown voltage, Colophyllum Inophyllum oil
Analisa Gas Terlarut Pada Minyak Transformator Daya 150 kV Dengan Menggunakan Metode Duval Pentagon Devita Amalia; Fri Murdiya
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 4, No 1 (2017): Wisuda Februari Tahun 2017
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Transformer oil is one of the important components of a transformer, because in addition to its function as an insulator which provides the function of inter-winding insulation inside the transformer, as well as the cooling medium to absorb heat from the transformer core and transformer winding. The content of gases dissolved in transformer oil indirectly indicate the condition of the transformer itself. Therefore, analysis of transformer oil or Diissolved Gas analys (DGA) needs to be done to determine the type of interference that may occur in the transformer, which can be directly carried out an action and special attention to the transformer before the condition worsens. The final task is about the maintenance actions that must be done to the results of gas content dissolved in transformer insulating oil. This research was conducted by comparing some methods of interpretation that is TDCG, Duval triangle, and Duval pentagon. The test sample used for analysis is the transformer oil samples at some substations owned by PT. PLN (Persero) P3BS UPT Pekanbaru, Riau. The results showed that increasing the amount of dissolved combustible gas in transformer oil will result in reduced performance of the transformer. This would explain that the transformer has impaired which can be disturbances thermal (thermal fault), partial discharge, or arcing.  Keywords: transformer oil, DGA, Duval method, Disruption
Co-Authors Abdul Rasyid Aldi, Robi Amir Hamzah Amun Amri Antonius Rajagukguk Ari Sandhyavitri Azriyenni Azhari Zakri Bella Novita Dona Cecep Zaenal Mutaqin Cecilia Stevany Chandra, Andre David Andrio Devita Amalia Dzaki Furqoon Ery Safrianti Faisal Setiawan Febrizal Ujang Feranita Feranita Firdaus Firdaus Firdaus Firdaus Firdaus Firdaus Sutan Ginting, Rio Abraham Hamdani, Eddy Hardani, Nanda Hardiwika, Ericko Hariadi, Rofi Havel Alindo Sano Havel Alindo Sano Heni Pujiastuti Hotdin Peterson A I Gusti Bagus Wiksuana Liho Dachanri Doly Linna Oktaviana Sari Luchman Wira Admaja M Javad Faruqi Mangapul, Toni Maradongan, Maradongan Meliana Meliana Michael Anderson Muhammad Rafi Epafras nadeak, Parade Neni Frimayanti Noviansyah Noviansyah Novri Andrean Nurhalim Dani Ali Nurhalim Nurhalim Oky Kurniawan Panjaitan, Handerson Pardede, Tumpal Pedia Aldy Rendy Kamerlisa Putra Riski Febriyursandi Rizal, Ghane Sha Rofi Hariadi Rosma, Iswadi Hasyim Rossi Passarella Rudi Setiawan Sano, Havel Alindo Saputra , Ivan Shifa Rayni Efendi Stevanny, Cecillia Stevany, Cecilia Sulistianto, Agus Ernawan Suwitno Tommy Adrian Sinaga Tommy Rizky Krisnadi Yan Habibillah Pesa Yansyah Prasetyo Yusnita Rahayu