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All Journal JOIV : International Journal on Informatics Visualization Jurnal Nasional Pengelolaan Energi MigasZoom Jurnal Hilirisasi Technology kepada Masyarakat (SITECHMAS) Prosiding Seminar Nasional Teknik Elektro, Sistem Informasi, dan Teknik Informatika (SNESTIK) Edukasia: Jurnal Pendidikan dan Pembelajaran Electrician : Jurnal Rekayasa dan Teknologi Elektro ELPOSYS: Jurnal Sistem Kelistrikan Journal of Systems, Information Technology, and Electronics Engineering Jurnal INFOTEL Jurnal Polimesin Civitas: Jurnal Pengabdian Masyarakat

Astrie Kusuma Dewi, Astrie Kusuma

STEM Akamigas Jl. Gajah Mada No.38 Cepu, 58315

Author-ID : 568944

Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Computer Science & IT Control & Systems Engineering Earth & Planetary Sciences Education Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Materials Science & Nanotechnology Mathematics Mechanical Engineering Social Sciences Other

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Analisis Sistem Kinerja PLC Pada Air Dryer di Unit Utilities PT. X Hengkesa, Melinda; Dewi, Astrie Kusuma
Elposys: Jurnal Sistem Kelistrikan Vol. 11 No. 2 (2024): ELPOSYS vol. 11 no. 2 (2024)
Publisher : Politeknik Negeri Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33795/elposys.v11i2.4849

The refinery process in PT. X relies on several supporting units, including the air dryer in the utilities section, which is essential for removing water content from compressed air to support refinery operations. This research aimed to analyze the performance of the Programmable Logic Controller (PLC) system in the air dryer units (A, B, C, and D), each comprising two towers that can operate alternately or simultaneously. The conventional TM series controller was replaced with a Schneider Electric Modicon M340 PLC to enhance system reliability and digitization. A methodical approach was adopted, beginning with data collection from sensors connected to the PLC, followed by processing the data using predefined logic instructions. The research findings indicated significant improvements in operational efficiency, response time, and energy consumption with the PLC system compared to the TM series. The PLC system also facilitated continuous and precise control of the drying and regeneration processes. These findings underscore the importance of adopting advanced PLC systems to ensure higher operational efficiency and reliability in industrial applications. Consequently, this research advocates for the comprehensive upgrade of conventional control systems to PLCs in similar industrial settings.

Wireless Volume Corrector for Natural Gas Flow Metering Using ESP32 Microcontroller and Open-Source Web Server Handaja, Suka; Dewi, Astrie Kusuma; Triyanto, Roni Heru
JOIV : International Journal on Informatics Visualization Vol 8, No 3 (2024)
Publisher : Society of Visual Informatics

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62527/joiv.8.3.2160

The measurement of gas flow in energy transactions from an energy-producing company to an energy user is essential to evaluate, considering that measurement errors can accumulate, and losses can occur, which will be ongoing. The gas measurement process begins with measuring pressure and temperature parameters and the gas flow volume transacted. Then, the measured gas volume will be converted into a standard volume as the basis for gas buying and selling transactions (custody). This article conveys that a wireless volume corrector has been designed using the ESP32 microcontroller with Wi-Fi communication that can be integrated with the internet to support automatic meter reading systems. The measured data is collected in a database server using XAMPP, an open-system web server. Data stored on the database server is displayed via a web browser with a display of the last 5 data entered the web server. The web browser display is refreshed every second so that the display on the web browser is a live or online display. This research resulted in temperature, pressure, actual flow, and volume standard measurements with an error below 0.1%, which met the metrology requirements, instilling confidence in the system's reliability. This research proves that realizing a volume corrector with IoT technology can be done cheaply.

Pengaruh Kontaminasi Produk Biosolar (B30) Oleh Produk Pertamax Farras, Fitrianne; Azzahra, Alifia; Dewi, Astrie Kusuma
Jurnal Nasional Pengelolaan Energi MigasZoom Vol. 6 No. 2 (2024): Jurnal Nasional Pengelolaan Energi MigasZoom
Publisher : Pusat Pengembangan Sumber Daya Manusia Minyak dan Gas Bumi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37525/mz/2024-2/446

Biosolar diprediksi akan menggantikan minyak bumi yang berasal dari fosil pada masa mendatang. Kandungan dalam Biosolar juga lebih baik dibandingkan solar murni karena tingkat sulfur yang rendah dan cetane number yang lebih tinggi. Pengembangan terhadap Biosolar terus dilakukan untuk mendapatkan hasil yang lebih baik. Percobaan dilakukan untuk menganalisis spesifikasi Biosolar (B30) yang terkontaminasi Pertamax dan pengaruhnya saat diberi perlakuan dengan kadar kontaminasi yang berbeda. Sampel mula-mula dilakukan dengan pengujian Biosolar (B30) yang diperoleh dari SPBU terdekat untuk mengetahui spesifikasinya. Kemudian, sampel Biosolar (B30) dibuat kontaminasi dengan Pertamax pada perbandingan 5%, 10%, dan 15%. Beberapa parameter uji dilakukan seperti density, distilasi, viskositas, pour point, flash point, warna, dan calculated cetane index (CCI). Spesifikasi Biosolar (B30) dapat menurun jika terkontaminasi dengan pertamax. Fraksi minyak bumi yang lebih tinggi memiliki titik nyala yang lebih tinggi. Akibatnya, produk dengan titik nyala yang lebih rendah lebih mudah menguap, sehingga lebih mudah terbakar. Jika bahan bakar ini digunakan pada mesin diesel, uap yang terbuat dari campuran bensin dan udara akan menyala sebelum piston mencapai titik mati atasnya. Ledakan dini menyebabkan knocking yang kasar dan menyebabkan kerusakan mesin yang cepat. Metode standar ASTM digunakan untuk menentukan spesifikasi setiap parameter.

Alat Deteksi Kebocoran Gas Rumah Tangga Berbasis Internet of Things Dewi, Astrie Kusuma; Wardhana, Asepta Surya; Pratama, Akbar; Nugraha, Wijaya Adi
Jurnal Hilirisasi Technology kepada Masyarakat (SITECHMAS) Vol. 2 No. 2 (2021): Vol. 2 No. 2 Oktober 2021
Publisher : Politeknik Negeri Semarang

Teknologi yang berkembang pesat menghasilkan inovasi-inovasi baru yang mampu membantu memudahkan pekerjaan manusia. Dan saat ini semua informasi dapat diakses dengan mudah dan cepat dan menghasilkan data yang akurat. Inilah salh satu konsep dari Internet of thins, yaitu segala hal yang terhubung dengan internet. Dari sinilah ide awal tersebut muncul. Dengan adanya kasus kebakaran rumah yang disebabkan oleh kebocoran gas rumah tangga. Maka terciptalah alat ini, yang bekerja dengan memanfaatkan jaringan dari internet. Alat ini mampu ngirimkan sinyal ke telepon pintar (smartphone) kita, saat terjadi kebocoran gas rumah tangga.

Prototype Pendeteksi Api Menggunakan Arduino Uno R3 ATMega 328P Dewi, Astrie Kusuma
Journal of System, Information Technology and Electronics Engineering Vol 2 No 1 (2022): JUNI 2022
Publisher : Universitas Ivet

Pembangunan suatu rumah pasti memperhatikan keamanan dan kenyamannya. Tetapi tetap saja hal-hal yang tidak diinginkan bisa saja terjadi karena unsur ketidaksengajaan atau juga keteledoran. Maka diperlukan tindakan penanggulangan atau pencegahan dengan memasang alat atau alarm pendeteksi sebagai peringatan akan terjadinya bahaya yang terjadi dari dalam rumah, salah satunya akibat kebakaran. Dalam projek sederhana ini dibuat prototype alat untuk mendeteksi adanya percikan api atau api dalam ruangan berukuran 2 m2 menggunakan sensor api 4 pin, Arduino UNO R3 ATMEGA328P dan Buzzer 3-24 . Dari hasil pengujian rangkaian alat diketahui buzzer akan menyala ketika api berada tidak lebih 100 cm dari sensor api. Ketika api berada di bawah 100 cm dari sensor api, maka sensor api akan mengirimkan sinyal HIGH yang berarti api terdeteksi dan kemudian akan menyalakan buzzer yang berfungsi sebagai alarm tanda bahaya

Penerapan Insulasi Perpindahan Panas Pada Pipa Boiler Feed Water Di PT. Petrokimia Gresik nabilah, alifiyah shaffa; Ditto, Gusza; Dewi, Astrie Kusuma
Prosiding Seminar Nasional Teknik Elektro, Sistem Informasi, dan Teknik Informatika (SNESTIK) 2025: SNESTIK V
Publisher : Institut Teknologi Adhi Tama Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31284/p.snestik.2025.7235

Penggunaan teknologi hijau menjadi solusi untuk mengurangi dampak lingkungan dari berbagai sektor, termasuk transportasi dan konstruksi, yang merupakan kontributor besar emisi karbon dan polusi. Insulasi perpindahan panas pada pipa merupakan salah satu inovasi dalam teknologi ramah lingkungan yang diterapkan di PT Petrokimia Gresik untuk meningkatkan efisiensi energi dan mengurangi dampak lingkungan. Artikel ini membahas penggunaan glass wool sebagai material insulasi pada pipa boiler feed water, yang bertujuan untuk mengurangi kehilangan panas. Hasil perhitungan menunjukkan bahwa penggunaan glass wool secara signifikan menurunkan jumlah energi yang hilang, dari 2.834,04 W tanpa insulasi menjadi 60,52 W dengan insulasi. Penggunaan insulasi ini tidak hanya meningkatkan efisiensi termal, tetapi juga mengurangi emisi karbon, melindungi infrastruktur, dan memperpanjang umur pipa. Artikel ini menggarisbawahi pentingnya penerapan teknologi hijau dalam mendukung pembangunan berkelanjutan dan dapat menjadi contoh bagi perusahaan lain dalam mengurangi jejak karbon mereka.

Pemodelan Energi Listrik yang Dihasilkan oleh PV Menggunakan Metode Time Series dan Neural Network untuk Komparasi Yuliatin, Umi; Wardhana, Asepta Surya; Dewi, Astrie Kusuma; Hamdani, Chalidia Nurin
EDUKASIA Jurnal Pendidikan dan Pembelajaran Vol. 4 No. 2 (2023): Edukasia: Jurnal Pendidikan dan Pembelajaran
Publisher : LP. Ma'arif Janggan Magetan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62775/edukasia.v4i2.541

Renewable energy sourced from the sun has become one of the focal points of alternative renewable energy as fossil energy reserves diminish. Solar energy, which is converted into electricity using photovoltaic technology, is influenced by several variables, particularly weather variables such as temperature, humidity, and solar radiation. This study involves modeling and forecasting the power output of a 100 Watt PV Solar system using Time Series Analysis and Neural Network techniques. The PV solar system is connected to various weather variable measurement sensors, such as a pyranometer, temperature sensor, and humidity sensor. The data collected from these sensors serve as input for calculating the power output of the installed 100 Watt PV system. The power output is observed on an hourly and daily basis. The modeling results indicate that the best model obtained using ARIMA with variables is ARIMA (0,0,2), incorporating all weather variables (Radiation, Humidity, Temperature*, Wind, and Light*) with a MAPE (Mean Absolute Percentage Error) of 2.91%. Meanwhile, for the best Neural Network (LSTM) model, the input variables of radiation, temperature, and intensity achieved a MAPE of 3.41%

RANCANG BANGUN SOFTWARE PERHITUNGAN UNTUK SISTEM METER TURBIN DENGAN METODE FUZZY Dewi, Astrie Kusuma; Mareta, Silvia; Hamdani, Chalidia Nurin
Electrician : Jurnal Rekayasa dan Teknologi Elektro Vol. 16 No. 1 (2022)
Publisher : Department of Electrical Engineering, Faculty of Engineering, Universitas Lampung

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

Custody transfer is an important activity in the oil and gas industry which requires high accuracy. In keeping the metering system in an accurate condition, dynamic testing is needed as an evaluation of the custody transfer metering system. In carrying out dynamic testing, software is needed so that calculations will be more accurate and minimize errors. Calculation software in the market is currently quite expensive and does not cover all the calculation needs needed in the field, it is necessary to make calculation software that suits your needs and has a low price. With this software, it is hoped that it can simplify the calculation process and speed up troubleshooting time when there is a measurement deviation because the data read in the flowcomp can be directly proven for its accuracy. In finding a correction factor, a method is needed that is able to determine the value between two known values. Fuzzy method is considered capable of solving these problems. Sugeno fuzzy method is suitable for use in this study because it has an output in the form of a constant. After testing several random samples, the results of the Sugeno fuzzy method have the greatest error on the MPMS API table, namely 0.00004. When compared with the interpolation method, the fuzzy method has the same results as the value generated by the interpolation method. So it can be concluded that the fuzzy method can be used as a calculation method in finding the correction factor.

Fuzzy logic-PLC-based controller for water treatment simulator system Dewi, Astrie Kusuma; Labatar, Gilbert; Hamdani, Chalidia Nurin; Wardhana, Asepta Surya
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.v22i6.5606

The constant demand for clean water is critical for both consumption and daily activities. A water pH control system is essential for regulating and determining the concentration of acid and base values in water. Research projects often employ a Programmable Logic Controller (PLC) control system with various control methods. This serves as the backdrop for the design of a water treatment simulator, which utilizes a fuzzy logic control system. Fuzzy logic control is a reliable method that produces effective and accurate output values. Experiments conducted on the designed water treatment simulator demonstrate this. Factors influencing the relationship between the solution pump response time and the normalized water pH results are the concentrations of the pH-UP and pH-DOWN solutions. The water treatment simulator is a lab-scale water pH control system simulation tool using a fuzzy logic control mode. It uses an Outseal PLC microcontroller, a pH sensor to measure pH, a DC pump, and a solenoid valve to control the output flow. The experimental results show a significant relationship between the initial pH value of the water measured and the response time of the solution pump. Data analysis shows a positive correlation where the further the pH concentration value of the water is from the normal pH state, the higher the response time value. Factors influencing the relationship between the solution pump response time and the normalized water pH results are the concentration of the pH UP and pH DOWN solutions. The concentration of the solution is set for a pH UP of 12.2 and a pH DOWN solution of 2.2.

Design Of Temperature System On The Electrical Tank Heater Using PLC Dewi, Astrie Kusuma; Sugirto, Ihrom; Hamdani, Chalidia Nurin; Septiani, Natasya Aisah
Jurnal Polimesin Vol 22, No 1 (2024): February
Publisher : Politeknik Negeri Lhokseumawe

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30811/jpl.v22i1.4228

A temperature control system is required in any situationthat requires a certain temperature to remain stable.Likewise, in the electrical processtank heater that requires a control system, because the temperature is notby the set value will cause overheating it,causing the product temperature is not as desired and can even causea dangerous explosion. In this project, the design is carried outtemperature control on the prototype electrical tank heater usingPLC Nano V5.2 as the controller, and the control method used is fuzzy Sugeno.Fuzzy logic has a value of obscurity and obscuritybetween right and wrong and control systems. Membership value may varyfrom 0 to 1. This means a situation can have two values, “yes or no” and "right or wrong", so it seems as if there is a "gray" area. Fuzzy Sugenois a fuzzy inference method for the conditions represented inthe form of IF–THEN, where the system output is not a fuzzy set but a constant form. Test results on the prototype confirm that the systemcontrol with PLC as controller and fuzzy as control methodhas a good ability to adapt the time needed totake longer to reach a stable state at higher temperatures (33.5°C to 37°C).Then at lower temperatures (29°C to 33.5°C). Haiwell-capable interfaceschange set values, display real-time graphs, and send commands toset PWM.

Co-Authors Adi, Wasis Waskito Aditya Dharmawan, Aditya Agus Setiyono Annasit Azzahra, Alifia Chalidia Nurin Hamdani Dewi Purnamasari Didin Herlinudinkhaji, Didin Ditto, Gusza Farras, Fitrianne Hamid, Farid Alfalaki Handaja, Suka Handoko, Susilo Hengkesa, Melinda Ibrahim, Ahmad Rasyid Indriani, Erdila Labatar, Gilbert Mareta, Silvia Mauludin, Muhammad Zairon nabilah, alifiyah shaffa Novan Akhiriyanto Nugraha, Wijaya Adi Nugroho, Budi Sulistiyo Nurrahman, Arif Pratama, Akbar Septiani, Natasya Aisah Sugirto, Ihrom Triyanto, Roni Heru Wardhana, Asepta Surya Widiyanto, Totok Yuliatin, Umi

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