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All Journal Tekno : Jurnal Teknologi Elektro dan Kejuruan Prosiding Seminar Nasional Sains Dan Teknologi Fakultas Teknik Journal of Telematics and Informatics Jurnal Produksi Tanaman JFA (Jurnal Fisika dan Aplikasinya) JURNAL NASIONAL TEKNIK ELEKTRO Kinerja: Jurnal Ekonomi dan Manajemen JTERA (Jurnal Teknologi Rekayasa) Logista: Jurnal Ilmiah Pengabdian Kepada Masyarakat Infotekmesin Jurnal E-Komtek Jurnal Berdaya Mandiri REKA ELKOMIKA: Jurnal Pengabdian kepada Masyarakat Jurnal Jaringan Telekomunikasi Jurnal Hilirisasi Technology kepada Masyarakat (SITECHMAS) Power Elektronik : Jurnal Orang Elektro Jurnal Ecotipe (Electronic, Control, Telecommunication, Information, and Power Engineering) Journal of Power, Energy, and Control
Afrizal Abdi Musyafiq
Politeknik Negeri Cilacap
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Peramalan Permintaan Pasokan Energi Berdasarkan Intensitas Konsumsi Listrik dan Kapasitas Pembangkit Listrik Terpasang Abdi Musyafiq, Afrizal; Purwanto, Riyadi
Infotekmesin Vol 12 No 1 (2021): Infotekmesin: Januari 2021
Publisher : P3M Politeknik Negeri Cilacap

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35970/infotekmesin.v12i1.442

Abstract

This research is an important step in energy planning which is the main in electricity planning in the long-term forecast for the demand and supply of energy supply. A simple model is presented using LEAP (Long Term Alternative Energy Planning System) as a broadcasting tool and Central Java as a case study case for this research. This research discusses future energy needs. Electricity needs in the household, industrial, business, and community sectors are calculated based on data on participation, electricity consumption, installed electricity generation capacity, electrification ratio, and electricity strengthening. The base year of this research is 2020 and 2045 is the final period of this forecast. The results of this study indicate that energy needs in Central Java will increase by an average of 23.44% in 2045 or five times compared to 2020 by taking into account various factors of regional economic growth and electricity demand each year
Unjuk Kerja Pengembangan Prototype Alat Pengering Padi Metode Thin Layer Abdi Musyafiq, Afrizal; Dewi, Riyani Prima; Purwiyanto, Purwiyanto; Subarkah, Rafiq
Infotekmesin Vol 14 No 1 (2023): Infotekmesin: Januari, 2023
Publisher : P3M Politeknik Negeri Cilacap

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35970/infotekmesin.v14i1.1564

Abstract

Based on data from the Central Statistics Agency (BPS) for 2019, Cilacap Regency has an area of 14,000 hectares of rice farming land with a potential for harvesting up to 920,000 tons of rice, then the Binangun District area has 66.5 hectares of rice farming land with a potential of harvesting up to 32,000 tons of rice. Turning paddy into rice requires many processes, one of which is drying rice. Traditional rice drying takes a relatively long time, has an uneven moisture content, and is under an unstable temperature therefore it is necessary to develop a thin-layer method for drying rice. This study used the Rex C100 Thermocontrol as a drying temperature controller, used an Arduino Uno equipped with a BTS 7960 driver to adjust the stirring speed, and a YL-69 sensor to read the rice moisture content. Tests in this study were carried out using Inpari-32 rice with a mass of 2 Kg and a drying temperature of 50-80oC. The result of this study was that the relationship between temperature and time in drying was inversely proportional. The rice drying process uses the highest drying power of 654.5 watts while the lowest power is 467.5 watts. The lowest overall energy use was 2.05 x106 J and the highest energy was 2.60 x106 J. The highest drying rate was 0.50%bk/minute. Effective drying uses a temperature of 80oC with a time of 30 minutes to reach the store-dry rice and 70 minutes to reach the dry milled rice category.
Analisis Kandungan Silikon Karbida (SiC) Sebagai Filler Terhadap Peningkatan Kekerasan Pada Metal Matrik Komposit Arrahim, Muhammad Ghazali; Wicaksono, Leo Hutri; Fadly, Muhammad Syaiful; Musyafiq, Afrizal Abdi
Infotekmesin Vol 14 No 2 (2023): Infotekmesin: Juli, 2023
Publisher : P3M Politeknik Negeri Cilacap

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35970/infotekmesin.v14i2.1668

Abstract

Metal Matrix Composite is one of the metal composites that utilize aluminum alloy as a matrix in its fabrication. MMC has better specifications than the conventional materials it forms because it is light, ductile, with better hardness properties. The aluminum alloy as the matrix in this study has good mechanical properties but relatively low hardness values, especially type 2xxx aluminum containing Al-Cu or duralumin. By adding silicon carbide (SiC) ceramic content which acts as a filler in the manufacture of MMC it aims to increase the hardness value through a strengthening mechanism by analyzing the distribution of filler particles to the matrix. Using the sintering method with temperature variations that affect the mechanical properties of MMC. From the tests carried out the MMC specimens experienced an increase of 7.06% with the highest hardness value at 300oC sintering temperature of 71.6 HRB. With a SiC content of 14.42% Wt. Then it was observed using a Scanning Electron Microscope (SEM) that the distribution of SiC particles experienced an even distribution and bonded to the aluminum matrix thereby reducing porosity and increasing the hardness value of the MMC material.
TEKNOLOGI PANEL SURYA UNTUK PENGOLAHAN LIMBAH SISA PENYULINGAN MINYAK KAYU PUTIH Rahmat, Saepul; Hendi Purnata; Novita Asma Ilahi; Afrizal Abdi Musyafiq
Jurnal Berdaya Mandiri Vol. 5 No. 2 (2023): JURNAL BERDAYA MANDIRI (JBM)
Publisher : Universitas PGRI Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31316/jbm.v5i2.4485

Abstract

Ujungmanik Village, Kawunganten District, Cilacap Regency, which is in the Segara Anakan Cilacap area, has natural resources, especially eucalyptus plants, which have the potential to develop the economy of the village community. The biggest problem faced by LMDH Dadi Makmur as a unit that manages the eucalyptus oil business is that after the production of eucalyptus oil distillation, it will produce residual waste from cajuput oil twigs and leaves with quite a large volume and only be left piled up around the yard where the distillery is, causing area storage of essential oil raw materials is narrow and also takes a long time to become organic fertilizer. The innovation offered through this community service activity is implementing a briquette printing machine from eucalyptus oil refining waste which is energy efficient and based on solar panels. The results of the dedication show that the eucalyptus oil waste processing activity in addition to reducing environmental pollution also produces biomass briquettes that can be utilized by the residents of Ujungmanik Village as a leading economic product of Ujungmanik Village.  Keyword: Cajuput oil, briquette, solar panels
PEKEN BANYUMASAN EDISI TJILATJAP: TJAKRAWEDANA 1, IMPLEMENTASI KONSEP CREATIVE PLACEMAKING DI KABUPATEN CILACAP Ilahi, Novita Asma; Musyafiq, Afrizal Abdi
Jurnal Berdaya Mandiri Vol. 5 No. 3 (2023): JURNAL BERDAYA MANDIRI (JBM)
Publisher : Universitas PGRI Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31316/jbm.v5i3.5134

Abstract

This community service activity collaborated with various elements of academia, including Lecturers at the Cilacap State Polytechnic (PNC) and Lecturers at the Telkom Purwokerto Institute of Technology (ITTP) and industrial elements around Cilacap Regency. This activity held in a historic building, aims to form a sustainable creative ecosystem by creating creative placemaking as a platform to improve the creative industry and increase the post-pandemic economy in Cilacap Regency. The method of this activity begins with the selection of the main theme H.A.P (Heritage-Art-Pop) as part of the Tjilatjap – Tjakrawedana 1 Edition Banyumasan Peken. The results of this activity were able to collaborate with all parties who are members of B.Y.O.T Heptahelix activities, namely academics, local government, industry, entrepreneurs, media, community, and aggregators. The discussion regarding the development of creative industries in Cilacap Regency is expected to be able to boost the post-pandemic community's economy and be able to alleviate poverty. Keyword: H.A.P; Creative placemaking; Tjakrawedana; Peken Banyumasan; Cilacap Creative
Optimization of Photovoltaic Performance Through the Implementation of a Photodiode-Controlled Dual-Axis Solar Tracking Mechanism Dewi, Riyani Prima; Saepul Rahmat; Betti Widianingsih; Gilang Saputra; Afrizal Abdi Musyafiq; Novita Asma Ilahi
Jurnal E-Komtek (Elektro-Komputer-Teknik) Vol 9 No 2 (2025)
Publisher : Politeknik Piksi Ganesha Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37339/e-komtek.v9i2.2865

Abstract

Indonesia has abundant renewable energy resources that support efforts toward energy independence and long-term energy security. However, photovoltaic (PV) modules are commonly installed in a fixed orientation, which limits solar energy absorption as irradiance varies with the sun’s position. To address this issue, this study employs a photodiode-based dual-axis solar tracking system capable of continuously aligning the panel with the sun’s trajectory. The photodiodes detect the direction of incoming sunlight, enabling real-time orientation adjustments to improve energy harvesting. Experimental results show that the dual-axis tracker produces an average output of 20.51 V and 0.98 A, compared to the static PV module with 19.97 V and 1.07 A.
Study of the Effect of Simple Filtration Composition of Waste Cooking Oil on the Quality of Biodiesel for Generator Fuel Musyafiq, Afrizal Abdi; Novita Asma Ilahi; Oki saputra
Jurnal E-Komtek (Elektro-Komputer-Teknik) Vol 9 No 2 (2025)
Publisher : Politeknik Piksi Ganesha Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37339/e-komtek.v9i2.2908

Abstract

Used cooking oil has great potential as a raw material for biodiesel due to its abundant availability and low price, but its quality often decreases due to high free fatty acid and impurities content. This study aims to examine the effect of variations in simple filtration compositions on improving the quality of used cooking oil before the conversion process into biodiesel. The filtration process was carried out using a combination of simple media such as activated charcoal, fine sand, and zeolite in certain ratios. The parameters tested included the density value at 15°C (kg/m³), the kinematic viscosity value at 50°C (mm²/s), and the calorific value (kcal/g) of the produced biodiesel. The experimental method involved several variations in filtration compositions followed by a standard transesterification process. The results of the study showed that the optimal filtration composition was able to produce B40 biodiesel at a temperature variation of 50-60 15°C with a density value of 868.5 kg/m³, a kinematic viscosity of 3,570 mm²/s, and a calorific value of 9772.4 kcal/g according to the standard range of SNI 7182:2015. In addition, biodiesel from simply filtered used cooking oil can be used as a generator fuel with an energy efficiency performance of 34.79% in an 8.5 kVA generator test. This finding provides an alternative for simple, inexpensive, and environmentally friendly used cooking oil processing to support the availability of renewable energy.
Exploration of Engineered Diode Current-Voltage Convergence for Maximum Power Point Tracking in Single-Axis Solar Tracker Systems. Ilahi, Novita Asma; Musyafiq, Afrizal Abdi; Hazrina, Fadhillah
Jurnal E-Komtek (Elektro-Komputer-Teknik) Vol 9 No 2 (2025)
Publisher : Politeknik Piksi Ganesha Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37339/e-komtek.v9i2.2919

Abstract

Indonesia, situated in the tropics, possesses optimal solar irradiation potential, positioning it as an ideal location for the deployment of photovoltaic (PV) energy systems. Given the escalating electricity demand driven by demographic expansion and technological advancements, harnessing solar panels as a viable alternative energy source is crucial. Nevertheless, static PV installations frequently yield suboptimal power absorption. This research, titled "Exploration of Diodic Current-Voltage Convergence of Maximum Power Point Engineering in a Single-Axial Solar Tracker System," focuses on an advanced approach to power optimization. Specifically, the study designs and evaluates a system capable of optimally capturing solar radiation by integrating a 20 Watt Peak (WP) PV unit with an automatic Solaris Single-Axial Tracker. The system architecture utilizes an Arduino Nano microcontroller as the core control unit, which is equipped with an ACS712 current sensor and a DC voltage sensor. Real-time data communication is accomplished using a Node-MCU ESP8266 module for serial transmission. Comparative analysis reveals a significant performance enhancement in the PV system attributed to the automatic tracking implementation. The average power absorbed by the 20 WP solar panel increased from 89.2 W (without tracking) to 93.70 W when the Single-Axial Tracking system was employed. Correspondingly, the PV panel's efficiency improved from 78.4% (static) to 82% (tracked). Furthermore, the monitoring data (current, power, and voltage) is visualized in real-time on a smartphone via the Blynk application, enabled by an internet-based communication protocol. This investigation successfully demonstrates that a microcontroller-based single-axial tracking system offers an efficient solution for maximizing solar energy absorption in tropical environments.
Co-Authors Agung prayogo Agus Santoso Ahmad Aftah Syukro Ahmad Agus Setiawan Aji, Galih Mustiko Akbar, Mohammad Hafiz Alimudin, Erna Ari Kristiningsih Ari Kristiningsih Arif Ainur Rafiq Arrahim, Muhammad Ghazali Betti Widianingsih Budi Nur Cahyo Budi Nur Cahyo Budi Sutiono PN Dian Muhammad Firdaus Edifikar, Wahyu Erliza Septia Nagara Erliza Septia Nagara Fadhillah Hazrina Fadillah Hazrina Fadlilah, Ilma Gilang Saputra Hazrina, Fadhillah Hendi Purnata Hera Susanti Hera Susanti Hera Susanti Hera Susanti Husna, Kulaiah Syifaul Illahi , Novita Asma Leo Hutri Wicaksono M. Fakhruriza Pradana, M. Fakhruriza Mardiyana Mardiyana Mardiyana Mardiyana Muhamad Yusuf Muhammad Fakhruriza Pradana, Muhammad Fakhruriza Muhammad Ghazali Arrahim Muhammad Syaiful Fadly Muhammad Syaiful Fadly Murdiono, Wisnu Eko Novita Asma Ilahi Oki Saputra Prima Dewi, Riyani Pujono Pujono Purwiyanto Purwiyanto Purwiyanto Purwiyanto Purwiyanto Purwiyanto Purwiyanto Purwiyanto, Purwiyanto Rafiq Subarkah Rafiq, Arif Ainur Riyadi Purwanto Riyadi Purwanto Riyani Prima Dewi Saepul Rahmat Saepul Rahmat Saepul Rahmat Saepul Rahmat Saepul Rahmat, Saepul Santi Purwaningrum Santi Purwaningrum Subarkah, Rafiq Sugeng Dwi Riyanto Supriyono Supriyono Susanti, Hera Syukur Makmur Sitompul, Syukur Makmur Usman Barokah Vicky Prasetia Vicky Prasetia Vicky Prasetia Vicky Prasetia Wahyu Wilopo Wicaksono, Leo Hutri Zarory, Hilman