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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

Author-ID : 2400890

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

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Dielectric Barrier Discharge Induced By Permanent Magnet In Attraction And Repulsion Conditions For Ozone Generator Murdiya, Fri; Saputra , Ivan
International Journal of Electrical, Energy and Power System Engineering Vol. 3 No. 1 (2020): International Journal of Electrical, Energy and Power System Engineering (IJEEP
Publisher : Electrical Engineering Department, Faculty of Engineering, Universitas Riau

Ozone is used in various area including medicine, drinking water treatment and waste treatment. Ozone can be produced using dielectric barrier discharge which is supplied by high voltage. High voltage occurs in the dielectric barrier discharge such as air gap that it is as a result of the failure of air in maintaining its insulator properties. Power supply used in this study is a parallel resonant push-pull inverter using a fly back transformer. In order to produce good plasma in producing ozone, a magnetic filed is added to dielectric barrier discharge. In this study, a magnet was placed on each anode and cathode electrode with the condition of attraction (model I) and repulsion (model II). The addition of two magnets to each electrode was also carried out under the conditions of attraction (model III) and repulsion (model IV). It is shown that the plasma intensity in the model I and III was higher than model II and IV. The discharge current in the model I and III was higher than model II and IV. The highest ozone concentration was model III and the lowest ozone concentration was in model IV. Model I had a higher ozone concentration than model II.

The Properties of Nitrogen Gas Breakdown Voltage under Direct Current Positive Polarity Murdiya, Fri; Firdaus; Pardede, Tumpal; Hamdani, Eddy
International Journal of Electrical, Energy and Power System Engineering Vol. 2 No. 2 (2019): International Journal of Electrical, Energy and Power System Engineering (IJEEP
Publisher : Electrical Engineering Department, Faculty of Engineering, Universitas Riau

The type of insulation gases that are usually used in the power circuit breaker (circuit breaker) is the sulfur hexafluoride (SF6) gas, nitrogen (N2) and carbon dioxide (CO2). Most of the electric power systems are using insulating materials such as sulfur hexafluoride (SF6). Sulfur hexafluoride gas (SF6) has a higher dielectric strength than the air. However, Sulfur hexafluoride (SF6) gas is not friendly environmentally and very impact on global warming. The purpose of this study was to test the breakdown voltage of nitrogen gas (N2) (more friendly environmental) as alternative insulation of sulfur hexafluoride (SF6) gas. This study was used sphere and needle electrodes with a distance of 0.5-2 cm and a pressure of 1-4 bar; it was tested for 20 times. From the test results, it obtained that the breakdown voltage of sphere electrodes is more significant than the needle electrodes. Sphere and needle electrodes with a distance of 2 cm and a pressure of 4 bar have a most excellent value of breakdown voltage at the voltage of 140 kV and 79 kV, respectively.

The Characteristics of Five Ceramics and Two Granites as Solid Dielectrics for An Ozone Generator: The Characteristics of Five Ceramics and Two Granites as Solid Dielectrics for An Ozone Generator Murdiya, Fri; Hardiwika, Ericko
International Journal of Electrical, Energy and Power System Engineering Vol. 3 No. 2 (2020): International Journal of Electrical, Energy and Power System Engineering (IJEEP
Publisher : Electrical Engineering Department, Faculty of Engineering, Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/ijeepse.3.2.53-56

The utilization of ozone is commonly applied in various fields, for instance, it is used as a disinfectant for water treatment, disinfecting, sterilizing medical devices and preserving foodstuffs. Ozone is a nearly colorless gas with a characteristic odor that can be detected by humans up to 0.01 ppm. It can be produced by the dielectric barrier discharge method,which is generally used as a method of generating ozone supplied by high voltage or also called high voltage plasma generators. High voltage plasma occurs in the dielectric barrier discharge air gap, as a result of the air failed in maintaining its insulator properties. The power supply used in this study is a parallel resonant pushpull inverter using a flyback transformer. Furthermore, this study did not use an additional magnetic loudspeaker and used ceramic dielectrics instead. 5 types of ceramics and 2 different types of granite and combined the range of air gap were used during examination and research. The research indicates that the best plasma was found in ceramics 3, 5, granite 1 and 2 with an air gap of 2mm. The current discharge in ceramic 1 with an air gap of 2 mm was higher than the others. The highest voltage discharge was on granite 2 with an air gap of 2 mm. Ceramics 3, 5, granite 1 and 2 with an air gap of 2mm had better ozone concentrations than ceramics 1, 2 and 4.

Analysis of Lightning Performance on 345 kV Transmission Lines Using Python Programming: Analysis of Lightning Performance on 345 kV Transmission Lines Using Python Programming Murdiya, Fri; Hariadi, Rofi
International Journal of Electrical, Energy and Power System Engineering Vol. 3 No. 3 (2020): International Journal of Electrical, Energy and Power System Engineering (IJEEP
Publisher : Electrical Engineering Department, Faculty of Engineering, Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/ijeepse.3.3.65-76

One of main causes of interruption of electrical power supply is the lightning strike on overhead power transmission lines. The lightning performance of transmission line can be determined by value of shielding failure flashover rate (SFFOR) and back flashover rate (BFOR). The object of this study is to create a computer application to compute lightning performance on the transmission lines using Python programming. Pythons package tkinter used for program interface window. Application programming is done by using the concept of object-oriented programming (OOP) using Pythons keyword class. Validation shows that the application has applied the method correctly with a percentage error 0 % for SFFOR and 3.14 % for BFOR. The application can do analysis on the factors that affecting SFFOR and BFOR such as the effect of thunder day, tower foot resistance, and number of isolator disk. The results obtained in this study is computer application that can perform lightning performance analysis and analysis of factors that can affect it, such as thunder day, tower foot resistance and the number of isolator disk.

Carbon Conversion Using High Voltage Plasma Method Based on Mangrove Wood Charcoal Aldi, Robi; Feranita, Feranita; Murdiya, Fri; Safrianti, Ery; Sari, Linna Oktaviana
International Journal of Electrical, Energy and Power System Engineering Vol. 6 No. 2 (2023): The International Journal of Electrical, Energy and Power System Engineering (I
Publisher : Electrical Engineering Department, Faculty of Engineering, Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/ijeepse.6.2.168-175

This study investigates the conversion of mangrove wood charcoal into graphene using high voltage plasma technology through arc discharge. The experiment involves heating carbon with high voltage plasma generated from rod and plate electrodes. The variables examined are the electrode distance and carbon treatment time. The results demonstrate the successful conversion of mangrove wood charcoal into graphene. The generated plasma is influenced by the electrode distance, with a 1 cm gap producing stronger bluish-orange plasma. Varying the treatment time also affects the graphene yield, with a 3-minute treatment generating more graphene compared to 2 minutes, and 2 minutes yielding more graphene than 1 minute. XRD analysis reveals characteristic peak shifts indicative of graphene presence. SEM analysis confirms the graphene structure with porous features and sub-micrometer sizes. SEM images and diameter data further validate the successful conversion of carbon into graphene. These findings provide a foundation for the development of high voltage plasma-based production of graphene from mangrove wood charcoal. The utilization of a 10kV Neon Power Supply transformer enables the generation of high voltage plasma for the carbon-to-graphene conversion process. The electrode distance in the transformer plays a crucial role, as greater distances result in higher voltages, while shorter distances lead to lower voltages. This research significantly contributes to expanding the knowledge and application of graphene in various scientific and engineering fields. Moreover, the understanding of how electrode distance affects the generated voltage using a Neon Power Supply transformer is an important finding for optimizing the performance of this type of transformer.

Investigation of Mixture of Epoxy Resin/Palm Kernel Shell as Insulation Murdiya, Fri
Journal of Ocean, Mechanical and Aerospace -science and engineering- Vol 43 No 1 (2017): Journal of Ocean, Mechanical and Aerospace -science and engineering- (JOMAse)
Publisher : International Society of Ocean, Mechanical and Aerospace -scientists and engineers- (ISOMAse)

Palm kernel shells have a high mechanical strength and good insulation strength. From these results it can be concluded that breakdown voltage of epoxy resin/palm kernel shells is higher than pure resin or resin/alumina. The highest breakdown voltage that occurred in the resin/palm kernel shells (8 wt%) is 76 kV. While the highest breakdown voltage that occurred in the epoxy resin/alumina (17 wt%) is 57.15 kV. Breakdown voltages of both samples are higher than the pure epoxy resin of 36 kV. The maximum electric field density (Emax) in the pure resin is 0.24 MV/cm that is lower than the resin/palm kernel shell (8 wt%) of 0.51 MV/cm and the resin/alumina (17 wt%) of 0.38 MV/cm. Discharge current has a lot of pulses and high amplitude when all solid insulation approached the breakdown event. However, the current pulses in the pure resin are higher than in both resin/palm kernel shell and resin/alumina. The epoxy resin mixture with palm kernel shells can be used as a new solid insulator.

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

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