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Ahmad Dani
Universitas Pembangunan Panca Budi
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Analisis Rugi-Rugi Daya Pada Saluran Transmisi 150 KV Pada Gardu Induk KIM Ahmad Dani
Jurnal Indonesia Sosial Teknologi Vol. 2 No. 11 (2021): Jurnal Indonesia Sosial Teknologi
Publisher : Publikasi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (4024.22 KB) | DOI: 10.59141/jist.v2i11.265

Abstract

Hal yang berpengaruh terhadap kualitas daya dari sisi pengiriman pada gardu  induk satu ke gardu induk lainya adalah masalah rugi-rugi daya. Masalah rugi-rugi daya ini terjadi juga pada saluran gardu saluran distribusi menuju konsumen. Saluran transmisi 150 kv Gardu Induk KIM  ini memiliki andil besar dalam penyaluran tenaga listrik kepada konsumen. Hal ini memicu perusahaan untuk terus mencari solusi agar dapat meminimalisir kerugian daya yang terjadi pada saluran. Meminimalisir kerugian daya dilakukan perhitungan berdasarkan  hasil analisis yang di dapat dari pihak perusahaan itu sendiri maupun dari instansi lain yang berkompeten di dalamnya. Untuk itu dalam penelitian ini bertujuan melakukan analisis perhitungan rugi-rugi daya pada saluran transmisi 150 kv Gardu Induk KIM. Metode yang dilakukan dengan melakukan perhitungan terhadap data saluran transmisi menggunakan persamaan saluran transmisi jarak pendek untuk menentukan hasil besar rugi-rugi daya yang terjadi  pada saluran transmisi 150 kv Gardu Induk KIM. Dengan hasil dari analisis data yang dilakukan maka diperoleh besar kerugian daya pada saluran transmisi sebesar 534,395 watt dengan efisiensi saluran 98.91%. Serta besarnya jatuh tegangan yang terjadi pada saluran sebesar 1,15 % dengan cos  0.96, maka kerugian daya dikategorikan masih dalam batas aman dan sangat baik.
Pengolahan Biomassa Tandan Kosong Kelapa Sawit Sebagai Bahan Bakar Pembangkit Listrik Tenaga Uap Dino Erivianto; Ahmad Dani; Haris Gunawan
Jurnal Indonesia Sosial Teknologi Vol. 3 No. 01 (2022): Jurnal Indonesia Sosial Teknologi
Publisher : Publikasi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (4836.753 KB) | DOI: 10.59141/jist.v3i01.337

Abstract

Selain menghasilkan produk utama CPO sebanyak 22% dari proses pengolahan tandan buah segar kelapa sawit, juga menghasilkan produk samping berupa cangkang 6%, fiber 13% dan tandan kosong kelapa sawit (TKKS) 22%. Cangkang dan fiber digunakan sebagai bahan bakar boiler di Pabrik Kelapa Sawit (PKS), sedangkan TKKS dibiarkan begitu saja di PKS atau diolah menjadi pupuk. TKKS memiliki potensi sebagai sumber energi terbarukan. Dalam penelitian ini akan menyetarakan TKKS sebagai sumber energi terbarukan dengan cara pengolahan TKKS terlebih dahulu melalui proses kempa untuk menghilangkan kandungan air maupun minyak dan menghasilkan minyak CPO sebesar 2% dan serabut TKKS sebesar 85% dengan nilai energi panas sebesar 1.943 kkal/kg. Penelitian juga membandingkan nilai ekonomis dari TKKS, cangkang, fiber dan batubara sebagai bahan bakar PLTU kapasitas 70 ton/jam. Untuk menghasilkan energi listrik sebesar 1 kWh membutuhkan serabut TKKS sebanyak 1,96 kg/jam atau 2,31 kg/jam TKKS dengan biaya bahan bakar sebesar Rp 277, -/kWh, cangkang sebanyak 1,07 kg/jam sebesar Rp 749,-/kWh, fiber 1,63 kg/jam sebesar Rp 285,-/kWh dan batubara sebanyak 0,58 kg/jam sebesar Rp 870,-/kWh sedangkan harga jual listrik ke PLN sebesar Rp 870,-/kWh. Keuntungan penjualan listrik terbesar ke PLN diperoleh dari bahan bakar TKKS sebesar Rp 8.895.000,-/jam dan penjualan CPO dari pengolahan TKKS sebesar Rp 4.146.000,-/jam.
Studi Sistem Pembangkit Listrik Tenaga Surya Off Grid Skala Rumah Tangga pada Daerah Bagan Deli Menggunakan Pvsyst Ahmad Dani; Dino Erivianto
Jurnal Indonesia Sosial Teknologi Vol. 3 No. 09 (2022): Jurnal Indonesia Sosial Teknologi
Publisher : Publikasi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (2078.548 KB) | DOI: 10.59141/jist.v3i09.496

Abstract

Solar energy is a source of energy that will never run out and has almost no negative effects on the environment. In this study using Pvsyst software with Stand Alone/Off Grid PV System conditions. Bagan Deli is one of the kelurahan in Medan Belawan sub-district which is located in a coastal area to analyze the potential for solar energy which is located at latitude 3.7756° north longitude, longitude 98.7033° east longitude. The optimal tilt angle according to the latitude is 10° (Tilt Angle) and the Azimuth angle of 180° (Azimuth Angle) facing south. The PV module used in the simulation is a solar cell module selected from the PVsyst database, namely Si-mono TDB 156X 156-36P 150W. The electricity load per day is 2,625 kWh/day, the need for electricity supply in one year is 958.1 kWh. Through the PVsyst software simulation, the Stand-Alone Solar Panel System uses 4 solar panels with a power of 150Wp, an area of ​​4 m2 and 2 batteries with a capacity of 200 Ah which are installed in series. The results of the performance of the Stand-Alone Solar Panel System obtained unused Energy of 0.2 kWh/kWp/day, Loss on PV Array of 1.12 kWh/kWp/day, Loss on PLTS System of 0.28 kWh/kWp/day, Energy that supplied to the user at 3.05 kWh/kWp/day.
Studi Perbandingan Arus Start Motor Induksi Sistem Pengasutan Dol Dan Star Delta Menggunakan Automation Studio Ahmad Dani; Dino Erivianto
Jurnal Indonesia Sosial Teknologi Vol. 4 No. 4 (2023): Jurnal Indonesia Sosial Teknologi
Publisher : Publikasi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59141/jist.v4i4.602

Abstract

Automation Studio adalah perangkat lunak untuk simulasi dan dokumentasi proyek yang memberikan fitur intuitif untuk desain, animasi, simulasi, dan analisis sistem dalam lingkungan yang dapat diskalakan dan mudah digunakan. Pada penelitian ini digunakan perangkat lunak Automation Studio untuk melakukan simulasi perbandingan arus start motor induksi dengan metode pengasutan sistem DOL dan sistem Star Delta. Hal ini dilakukan ntuk mengetahui karakteristisk dari masing masing pengasutan terhadap motor induksi.metode yang digunakan adalah dengan melakukan simulasi rangkaian menggunakan perangkat lunak dari Automation Studio. Automation Studio dirancang untuk industri maupun pendidikan yang berkaitan dengan teknologi industri yang lebih ke arah teknis seperti mekatronika, teknologi elektromekanik, elektronika dan teknologi otomasi. Dari penelitian ini didapat pengasutan dengan menggunakan metode DOL, besar arus yang dibutuhkan untuk start awal motor sebesar 137,1 Ampere. Pada pengasutan motor dengan menggunakan metode Y/D besar arus yang dibutuhkan saaat awal mula jalan motor pada hubungan Y adalah sebesar 46,7 Ampere dan berjalan dalam hubungan Delta (berjalan normal) besar arus adalah 23,7 Ampere. Dengan membandingkan data hasil analisis terlihat bahwa besar arus pengasutan menggunakan metode Y/D dapat mereduksi arus start sebesar 1/3 kali arus start pada saat pengasutan motor dilakukan dengan metode Direct-On-Line (DOL).
Analysis of the Implementation of PLC- and Iot Based Automatic Control Systems in Optimizing the Chemical Mixing Process at PT RAPP Benediktus Situmorang; Solly Aryza; Ahmad Dani
Jurnal Info Sains : Informatika dan Sains Vol. 16 No. 01 (2026): Info sains, 2026
Publisher : SEAN Institute

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Abstract

The chemical mixing process in the pulp and paper industry requires a high level of accuracy, consistency, and speed to ensure product quality and operational efficiency. PT Riau Andalan Pulp and Paper (PT RAPP), as one of the largest manufacturing companies in Indonesia, faces challenges in maintaining stable and real-time mixing processes, particularly in manual control systems that are prone to operator errors, delayed responses, and limited monitoring capabilities. This study aims to analyze the implementation of a Programmable Logic Controller (PLC)-based automatic control system integrated with the Internet of Things (IoT) as a solution to optimize the chemical mixing process. The research methodology includes the design of the control system architecture, PLC programming for regulating chemical levels, temperature, and material proportions, as well as the development of a web-based IoT dashboard for remote monitoring. The results indicate that the PLC-based automatic control system improves mixing precision by 18%, reduces processing time by 25%, and significantly decreases the risk of human error. IoT integration enables real-time monitoring, automated data logging, and early detection of process disturbances. Overall, the implementation of PLC and IoT has proven effective in enhancing operational efficiency, quality stability, and process reliability in the chemical mixing process at PT RAPP. This study recommends further development through predictive maintenance and the integration of analytical sensors to achieve end-to-end process automation.
Design and Simulation of a PLC-Based Cold Storage Temperature Control System for Agricultural Product Storage Batara Manggala Sianturi; Beni Satria; Ahmad Dani
Jurnal Info Sains : Informatika dan Sains Vol. 16 No. 01 (2026): Info sains, 2026
Publisher : SEAN Institute

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Abstract

Horticultural products require storage at temperatures ranging from 0–10 °C to maintain post-harvest product quality. Cold storage is an effective solution because it can maintain temperature stability, which affects the rate of respiration, microbial activity, and the shelf life of products. However, conventional cold storage systems that use only a single compressor are less flexible in adjusting to thermal loads, which reduces efficiency, accelerates component wear, and decreases the overall reliability of the system. This study designs and simulates an automatic temperature control system based on a Programmable Logic Controller (PLC) by regulating two compressor units according to room temperature and integrating the principles of hysteresis, staging, and rotation. The system uses an upper temperature limit of 10 °C, a lower temperature limit of 0 °C, and a hysteresis point at 5 °C as a reference for changing operating modes. Compressors can operate simultaneously to speed up cooling, compressors can operate alternately to balance the load while maintaining optimal temperature, and compressors can stop simultaneously to stop cooling and prevent product freezing. The simulation was carried out using CX-Programmer for ladder logic and CX-Designer for Human Machine Interface (HMI) visualization. Testing involves temperature variations above 10 °C, in the range of 0–10 °C, and below 0 °C to verify the system's response. The results show that the system is able to maintain the storage room temperature at optimal conditions automatically and stably. The system successfully applied the principles of hysteresis, staging, and rotation effectively in response to temperature changes. The system is also equipped with automatic recovery capabilities that maintain precise control after a power outage. This design has the potential to be applied in food preservation, supply chain logistics, and temperature-sensitive industries, as well as supporting the development of cooling and autonomous systems.
ANALISIS PENERAPAN KAPASITOR BANK DALAM PERBAIKAN FAKTOR DAYA DI GEDUNG KOMERSIAL BERBEBAN REAKTIF TINGGI Junaedi Hutabarat; Ahmad Dani; Beni Satria
Jurnal Nasional Teknologi Komputer Vol 6 No 2 (2026): April 2026
Publisher : CV. Hawari

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Abstract

Penelitian ini menganalisis efektivitas penerapan kapasitor bank dalam meningkatkan faktor daya pada gedung komersial berbeban reaktif tinggi menggunakan simulasi ETAP 19.0. Empat skenario dievaluasi: beban maksimum dan minimum dengan serta tanpa kapasitor bank. Pada beban maksimum (895 kVA), pemasangan kapasitor bank (400 kVar) meningkatkan faktor daya dari 78,3% menjadi 96,4%, mengurangi daya reaktif sebesar 66,4% dan menstabilkan tegangan di 384 V. Namun, pada beban minimum (173 kVA), kapasitor bank berkapasitas tetap (200 kVar) menyebabkan overcompensation, menghasilkan daya reaktif negatif (-150 kVar), faktor daya leading (-87,4%), dan kenaikan tegangan hingga 400,3 V yang berisiko merusak peralatan. Analisis menunjukkan kapasitas optimal kapasitor bank untuk beban maksimum adalah 389 kVar, sedangkan untuk beban minimum tidak diperlukan atau maksimal 50 kVar. Temuan ini mengonfirmasi ketidakefektifan kapasitor bank berkapasitas tetap pada beban dinamis. Penelitian merekomendasikan penggunaan sistem kapasitor bank otomatis dengan step control untuk menyesuaikan kapasitas secara real-time, memastikan faktor daya memenuhi standar PLN (≥0,85) sekaligus menghindari overcompensation. Pendekatan ini tidak hanya menghindari denda akibat faktor daya rendah, tetapi juga meningkatkan keandalan sistem.
Examining of Lecturer Interaction, Digital Literacy, and Visual Media on Student Learning Outcomes: The Key Role of Learning Motivation as A Mediation Variable Saaf, Arifin; Anggraini, Atika; Fauziyah, Selvi; Aziziy, Yunia Nabila; Dani, Ahmad; Qodariyah, Mamluatul
Islamic Journal of Integrated Science Education (IJISE) Vol. 5 No. 1 (2026): March
Publisher : Program Studi Tadris IPA, Fakultas Tarbiyah dan Ilmu Keguruan, Universitas Islam Negeri (UIN) Syekh Wasil Kediri

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30762/ijise.v5i1.8391

Abstract

This study examined of lecturer interaction on students’ learning outcomes, with learning motivation serving as a mediating variable. The research employed a quantitative explanatory design using Partial Least Squares Structural Equation Modeling (PLS-SEM). The study was conducted in the Tadris Ilmu Pengetahuan Alam (TIPA) Study Program at UIN Syekh Wasil Kediri and involved 22 fifth-semester students selected through total sampling. Data were collected using a five-point Likert-scale questionnaire measuring lecturer interaction, learning motivation, and learning outcomes. The results showed that lecturer interaction did not have a significant direct effect on students’ learning outcomes. However, lecturer interaction had a significant positive effect on learning motivation, and learning motivation significantly influenced learning outcomes. The mediation analysis further revealed that learning motivation significantly mediated the relationship between lecturer interaction and learning outcomes. These findings indicate that lecturer interaction contributes to student learning outcomes indirectly by strengthening learning motivation. The study highlights the importance of creating meaningful lecturer–student interaction in higher education as a way to foster student motivation and improve academic achievement. Therefore, efforts to enhance learning outcomes should focus not only on instructional delivery but also on building supportive and motivating academic interactions.
Analisis Kinerja Dan Efesiensi Sistem Kontrol Motor Induksi 3 Fasa Menggunakan Variable Speed Drive Pada Pompa Proses Fatty Acid Di PT. Permata Hijau Palm Oleo Bagas Saputra; Ahmad Dani; Beni Satria
Jurnal Nasional Teknologi Komputer Vol 6 No 2 (2026): April 2026
Publisher : CV. Hawari

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Abstract

This study investigates the performance and energy efficiency of a three-phase induction motor controlled by a Variable Speed Drive (VSD) in a fatty acid pump system at the Permata Group processing plant. The research is motivated by the increasing need for energy savings and operational reliability in continuous industrial processes where pump load profiles are highly dynamic. The objective of this study is to evaluate the effectiveness of VSD implementation in reducing energy consumption and improving motor operating characteristics under real plant conditions. Data were collected during actual production cycles through direct measurement of electrical and mechanical parameters, including current, voltage, frequency, torque, flow rate, and power consumption. The analysis compares the performance of the pump system before and after the application of VSD, using descriptive statistical analysis and graphical evaluation of motor behavior under various load conditions. The results demonstrate that the application of VSD significantly reduces energy consumption at partial loads while maintaining stable pump output and minimizing mechanical stress. The motor also shows improved operating efficiency and lower thermal loading compared to constant-speed operation. These findings indicate that VSD-based control offers a practical and cost-effective solution for industrial pump systems, especially in fatty acid processing operations where flow demand fluctuates during production. The practical implications are substantial, highlighting opportunities for energy conservation, equipment longevity, and process optimization without compromising product quality or throughput, making the system suitable for broader adoption in similar industrial environments.
Analisis Potensi Energi Listrik Tenaga Surya Atap Pada Gedung PT.WNS Menggunakan Software Helioscope Dymas Halim; Ahmad Dani; Beni Satria
Jurnal Nasional Teknologi Komputer Vol 6 No 2 (2026): April 2026
Publisher : CV. Hawari

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Abstract

The use of rooftop solar power plants is one of the strategic solutions to support the energy transition and increase use of renewable energy in the industrial sector. This study aims to analyze the potential and performance of rooftop solar power plants at PT. Waruna Nusa Sentana building located in Medan City, North Sumatra, using a simulation approach based on HelioScope software. The analysis was carried out by utilizing Typical Meteorological Year weather data and technical parameters of the Photovoltaic (PV) system designed according geographical conditions and tropical climate of the study location. simulation results show that rooftop solar power system with an installed capacity of 47.36 kWp is capable of producing 66,699 kWh of annual electrical energy with a specific yield of 1,408.3 kWh/kWp/year. The system performance evaluation resulted in a performance ratio of 80.2%, indicating that the rooftop solar power system works efficiently and is in the good performance category for tropical regions. Loss analysis indicates that the largest energy losses come from the effects of cell temperature, followed by losses due to module mismatch, reflection, and losses in the inverter and AC system. Manual calculations performed as analytical verification demonstrated consistency with the simulation results, thus strengthening the validity of the approach used. This study demonstrates that the implementation of rooftop solar power plants in industrial buildings in Medan City is technically feasible and can be used as a reference in the planning and development of rooftop solar power plants in tropical regions with similar climate characteristics
Co-Authors ABDUL HAMID Abubakar, Achmad Adelia Azzahra Ahmad Mujahid, Ahmad Alamsyah Harahap Alhabsyi, Hadija Ali Akbar Berutu Amani Darma Tarigan Amos Marganda Girsang Andi Naila Quin Azisah Aliasyahbana Anggraini, Atika Arfis A Arif Maulana, Arif Arif Rahmansyah Astrina Utami Auliany, Shylvia Rizki Awalya, Nurul Azis Muslim, Azis Aziziy, Yunia Nabila Badogil, Hutur Tuan Bagas saputra Batara Manggala Sianturi Benediktus Situmorang Beni Satria Dailami - Dewi, Nur Winda Dhimas Tribuana Dina Maulida Dina Tampubolon Dino Erivainto Dino Erivianto Dyah Ayu Putriani Dymas Halim Eko Prasetyo Hadi Ekowijayanto, Mochlis Endang Supriatna Erni Nurjaya Evan Haviana Fahrul Fahrul Faiz, M Farid Hidayat Fauziyah, Selvi Gebi Massing Gulo, Nico Ewaldo Fan Gultom, Dedi Harianto Hamdani . Hamdani Hamdani Hamzah Haniah Haniah Haris Gunawan Haris Gunawan Haris Gunawan Hilmy, Zakwan Jhon Wandes P. Hutagaol Junaedi Hutabarat Khairul Saleh Khairunnisa Salsabila Purba Khalizah, Ismi Ardiandari Nur Legito . M. Agung Irwansyah M. Aryan Syah M. Irwansyah Marcellino Eliah Minanga Maria Cecelia Peni Marsal Nasution Marthin Hotniel Marisi Arigatho Simbolon Mhd. Ali Akbar Nasution Mia Fitria Muh. Zulfi Qadri mulia Mulia Mulia Musfida, Firdha Nabila Patawa Siregar Nana Rahayu, Nana Noviansyah Noviansyah Nur Rezki Fitriani Nuraprilyani Pasaribu Nurhinaya, Nurhinaya Pristisal Wibowo Qodariyah, Mamluatul Rahmaniar Rendy Nugraha Bidangan Rolina Amriyanti Ferita, Rolina Amriyanti Saaf, Arifin Sabrina, Sangkot SAKRIM SAKRIM, SAKRIM Sanjaya, Moh. Nunung Seksama Reformasi Baene Simbolon, Silvana P. Solly Aryza Lubis Stepanus.S, Ronaldo SUCI WULAN DARI Sulfina Abrianti Supri Ananda Susilo, Trisno Sutan Aradji Larby Siregar Syafiqah Mangkawani Caneng Syarofi, Ibnu Tarigan, Amani Darma Tati Herlina Tyas Adi, Fajar Ulfani, Tri Wibowo, Pristisal Widodo, Panggih Williza Yanti, Williza Yanti, Sri Rahmayanti Yenni Cahya Sikala Yohani, Adisthi Martha