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All Journal Jurnal Cahaya Mandalika ELPOSYS: Jurnal Sistem Kelistrikan Journal Pemberdayaan Ekonomi dan Masyarakat Jurnal Polimesin
Akhiriyanto, Novan
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Humanities Automotive Engineering Control & Systems Engineering Economics, Econometrics & Finance Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Materials Science & Nanotechnology Mechanical Engineering Social Sciences Other

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Perawatan Tahunan Panel Distribusi TM P50 Pada Sistem Jaringan Listrik PT.X Tuasuun, Minggus; Akhiriyanto, Novan
Elposys: Jurnal Sistem Kelistrikan Vol. 11 No. 1 (2024): ELPOSYS vol. 11 no. 1 (2024)
Publisher : Politeknik Negeri Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33795/elposys.v11i1.4461

Abstract

The electrical network system is the process of distributing electrical energy from power plants to end-users through distribution networks and substations. The distribution network's primary function is to reduce high-voltage electricity, typically from 150 kV to 20 kV, while substations further lower it to a low voltage of 220 VAC for consumer use. However, over time, supporting equipment such as panels, cables, and transformers in the electrical network system can experience a decrease in quality, with a potential decline of up to 20% over 10 years. This degradation is due to various factors, necessitating the installation of protective measures and routine or annual maintenance to prevent potential risks. To maintain equipment quality, maintenance activities include cleaning, testing protection devices, and coordination between substations and workers. These measures are essential for the efficient operation and the successful distribution of electricity. This study evaluates the reliability of equipment at substation panel P50, with test results indicating insulation resistance values of 64,500 MΩ, 73,600 MΩ, and 87,100 MΩ, as well as a delta time of 0.7 ms. The test results indicate that the equipment's reliability is still classified as good, in compliance with the Puil 2000 and IEC 62271-100 standards.
Desain dan Pengujian Pengaplikasian Omron CP1L sebagai Remote Emergency Shutdown pada Aset Cementing Siburian, Christian; Akhiriyanto, Novan; Ardianto, Valentino
Elposys: Jurnal Sistem Kelistrikan Vol. 11 No. 3 (2024): ELPOSYS vol. 11 no. 3 (2024)
Publisher : Politeknik Negeri Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33795/elposys.v11i3.5435

Abstract

PT. X, an oil and gas service company in Indonesia, has a client facing safety risks at one of PT Y’s cementing assets. The client requested the implementation of an emergency shutdown component to mitigate the risk of accidents at the site. The primary challenge was the potential operational safety failures during cementing operations, which could lead to serious incidents without additional safety measures. This study aims to design and implement an emergency shutdown system based on the Omron CP1L to enhance operational safety at the cementing asset. The RES system was developed through a process of requirement identification, design, integration, and testing, supported by relevant literature studies. The system’s design includes the selection of appropriate hardware and software, as well as the development of logic to execute the shutdown when PT Y’s crew presses the emergency push button. Testing results indicate that the RES functions with an average delay time ranging from 1.5 to 1.9 seconds. The conclusion from this study is that the RES system is effective in enhancing operational safety and minimizing risks at PT Y’s cementing asset.  
Penerapan Sistem Pompa Air Tenaga Surya Off-Grid pada Areal Persawahan Dusun Joho, Kabupaten Blora sebagai Wujud Pemberdayaan dan Ketahanan Energi Masyarakat Akhiriyanto, Novan; Adi, Wasis; Dewi, Astrie
Jurnal Pemberdayaan Ekonomi dan Masyarakat Vol. 2 No. 3 (2025): July
Publisher : Indonesian Journal Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47134/jpem.v2i3.789

Abstract

Kekeringan yang diakibatkan oleh musim kemarau adalah tantangan utama pertanian yang dihadapi oleh masyarakat Dusun Joho, Kecamatan Cepu, Kabupaten Blora. Keterbatasan akses energi listrik di tengah areal persawahan dan air bersih untuk pengairan yang dicukupi melalui sumur tengah sawah menjadi hambatan dalam menjaga ketahanan ekonomi lokal. Kegiatan pengabdian kepada masyarakat ini bertujuan untuk menyediakan inovasi teknologi melalui penerapan sistem pompa air tenaga surya off-grid yang dilengkapi dengan water pumped storage dan alat pipil jagung berpenggerak motor DC. Kegiatan ini dirancang tidak hanya untuk memberdayakan masyarakat lokal dalam menghadapi permasalahan kekeringan, tapi juga memberikan ruang pembelajaran aplikatif bagi Mahasiswa dalam implementasi teknologi energi terbarukan. Hasil kegiatan menunjukkan bahwa sistem berfungsi dengan baik dan memberikan manfaat langsung kepada masyarakat. Lebih jauh, kegiatan ini secara praktis mendukung pencapaian beberapa tujuan Sustainable Development Goals (SDGs), yaitu SDG 1 (Tanpa Kemiskinan), SDG 4 (Pendidikan Berkualitas), SDG 7 (Energi Bersih dan Terjangkau), SDG 9 (Inovasi dan Infrastruktur) dan SDG 13 (Penanganan Perubahan Iklim)
Development of a low-cost microcontroller-based carbon capture device using the direct air capture (DAC) method and sodium hydroxide absorbent Hamdani, Chalidia Nurin; Muhajir, Muhammad Hafiz; Akhiriyanto, Novan; Muhtadi, M. Zaky Zaim; Rosalinda, Hanny Megawati
Jurnal Polimesin Vol 23, No 5 (2025): October
Publisher : Politeknik Negeri Lhokseumawe

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30811/jpl.v23i5.7229

Abstract

Currently, Carbon Capture, Utilization, and Storage (CCUS) systems are emerging as a significant focus in discussions of climate change. CCUS refers to a set of technologies designed to capture Carbon Dioxide (CO2) emissions from various sources and either utilize it for beneficial purposes or store it to prevent release into the atmosphere. CO2, the primary gas responsible for the greenhouse effect, is generated across multiple sectors, notably in energy and transportation. In Indonesia, the energy sector is the most significant contributor to CO2 emissions, accounting for 697.97 million tons in 2022. In this study, we have developed a cost-effective carbon capture device utilizing the Direct Air Capture (DAC) method. This device uses a microcontroller as the primary control unit, along with a compact closed chamber serving as the main reactor. Sodium hydroxide (NaOH) was utilized as the absorbent in our study. We conducted experiments on this device, keeping the NaOH concentration and reaction time fixed while varying the absorbent flow rate as the independent variable. The experiment yielded quite promising results. The absorption of CO2 is directly related to both the flow rate of the absorbent and the reaction time. The maximum CO2 absorption recorded is 3.960 ppm, achieved at a flow rate of 10 liters per minute with a reaction time of 5 minutes. The results have been reconfirmed by chemical titration.
RANCANG BANGUN SISTEM PEMANENAN ENERGI TERBARUKAN OFF-GRID MENGGUNAKAN PANEL SURYA DAN PIKOHIDRO Akhiriyanto, Novan
Jurnal Cahaya Mandalika ISSN 2721-4796 (online) Vol. 4 No. 2 (2023)
Publisher : Institut Penelitian Dan Pengambangan Mandalika Indonesia (IP2MI)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36312/jcm.v4i2.1523

Abstract

The irrigation system in several Blora Regency agricultural areas already has water wells using water pump in the middle of farming fields, so it requires electricity through the grid (PLN) which is distributed through long cables from closest residents. To solve this problem, it requires an off-grid energy system outside the grid. The objective of proposed research is how to design a hybrid off-grid energy harvesting system based on solar PV generation and picohydro, especially picohydro performance as compensating energy generated from potential energy accumulated in water storage.In this study, the aim is to utilize the picohydro device so that it is able to generate the energy of the water flow from the water tank outlet to fresh water users. So that the energy of water flow can optimally drive small turbines in picohydro, significant parameters that affect the voltage generated by picohydro are the water level in the tank. The highest voltage generated by picohydro in the system prototype is 9.4 Volts. In general, the prototype have been completed and implemented, but still requires DC-DC converter device for charging from picohydro to the battery in 12V.
Performance investigation of installed Pico-Hydro power using maximum power point tracking based on incremental conductance algorithm in solar water pumped storage system Akhiriyanto, Novan; Waskito A, Wasis; Pratama, Akbar; Satria P, Radith
Jurnal Polimesin Vol 21, No 6 (2023): December
Publisher : Politeknik Negeri Lhokseumawe

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30811/jpl.v21i6.4224

Abstract

The Solar Water Pumped Storage System (SWPS) has been gaining popularity as an environmentally friendly and sustainable solution to address water supply challenges in areas with abundant solar radiation. The potential energy stored in SWPS is harnessed by converting it into electrical energy through the installed pico-hydro power (picoHP) within the SWPS distribution pipe system. PicoHP performance depended on the flow rate and water pressure, which could not be naturally controlled, leading to low reliability in picoHP generation. This research aimed to optimize picoHP performance through engineering changes in pipe diameter and voltage regulation using a SEPIC MPPT circuit based on the Incremental Conductance (INC) algorithm. The parameters affecting the voltage and current of the picoHP were the water level in the tank and the choice of pipe adapter type based on changes in pipe diameter. The SEPIC MPPT circuit with the INC algorithm began operating when the input voltage from the picoHP reached 7.56 V, resulting in an output voltage of 11.2 V with a duty cycle (D) = 25%. This indicated a delay in the operation of the SEPIC MPPT with the INC algorithm due to the computational process, which did not respond quickly when the input voltage from the picoHP started to decrease. The electrical energy generated by the picoHP through the SEPIC MPPT circuit successfully charged the battery through the BMS module.
Open-source modeling and structural deformation analysis of a solar-powered charging station using freeCAD Kasturi, Kasturi; P, Regan Rahadian; Akhiriyanto, Novan; Hafiz, Muhammad
Jurnal Polimesin Vol 23, No 1 (2025): February
Publisher : Politeknik Negeri Lhokseumawe

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30811/jpl.v23i1.5958

Abstract

Solar energy is a sustainable and widely available resource with minimal environmental impact and low maintenance requirements. Ensuring the structural integrity of photovoltaic (PV) module supports is crucial for safe and efficient operation. This study utilizes FreeCAD, an open-source software with finite element analysis (FEA) capabilities, to evaluate the deformation and stress distribution in a solar-powered charging station structure. Two thickness variations (3 mm and 1.5 mm) of hollow carbon steel supports were analyzed under identical loading conditions. Results indicate that reducing the thickness from 3 mm to 1.5 mm increased deformation by 69.81% (from 0.53 mm to 0.9 mm) and stress by 96.93%, both remaining within acceptable structural tolerance limits. These findings validate FreeCAD as a cost-effective alternative to commercial FEA software, leveraging open-source libraries like Python, Calculix, and Open Cascade Technology (OCCT) to perform complex simulations without expensive licenses or high-end hardware.
Buck boost converter control to accelerate cooling in hydrogen system coolers Adi, Wasis Waskito; Akhiriyanto, Novan; Alson, Adi; Gunawan, Yohanes; Sahrin, Alfin; Utami, Erna
Jurnal Polimesin Vol 22, No 6 (2024): December
Publisher : Politeknik Negeri Lhokseumawe

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30811/jpl.v22i6.5610

Abstract

The electrolysis process involves decomposing water (H₂O) into hydrogen gas (H₂) and oxygen gas (O₂), requiring substantial electrical power. This study utilized an electrolyzer with a maximum capacity of 7V and 40A, demanding 280 watts of power. Therefore, it requires a voltage of less than 7V but a high current of up to 40A, as the critical parameter for the electrolyzer in producing hydrogen is the electric current flowing through it. A buck-boost converter was implemented to adjust the voltage to operate a Thermoelectric Cooler (TEC) for temperature regulation. Over time, as the electrolyzer operates and consumes a high current, there is an increase in its temperature. The system successfully maintained the electrolyzer temperature below 35°C by adjusting the output voltage between 10-14V, with an input range of 21.62-21.65V. The cooling system achieved a temperature reduction of 1.06°C, demonstrating its effectiveness in stabilizing the electrolyzer’s performance, thus optimizing hydrogen production efficiency.
Co-Authors Adi, Wasis Adi, Wasis Waskito Alson, Adi Ardianto, Valentino Chalidia Nurin Hamdani Dewi, Astrie Kasturi Kasturi, Kasturi Muhajir, Muhammad Hafiz Muhammad Hafiz Muhtadi, M. Zaky Zaim P, Regan Rahadian Pratama, Akbar Rosalinda, Hanny Megawati Sahrin, Alfin Satria P, Radith Siburian, Christian Tuasuun, Minggus Utami, Erna Waskito A, Wasis Yohanes Gunawan, Yohanes