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Audit Energi sebagai Wujud Penghematan Energi Listrik di Asrama Vyatra 1 Politeknik Energi dan Mineral Akamigas Cepu Pujianto, Pujianto; Astrie Kusuma Dewi, Astrie Kusuma Dewi; M.Zaky Zaim Muhtadi, M.Zaky Zaim Muhtadi; Asepta Surya Wardana, Asepta Surya Wardana
J-Dinamika : Jurnal Pengabdian Masyarakat Vol 10 No 2 (2025): Agustus
Publisher : Politeknik Negeri Jember

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

Abstract

Pelaksanaan audit energi di Gedung Asrama Vyatra I, PEM Akamigas, untuk mengidentifikasi potensi penghematan energi. Audit ini mencakup analisis konsumsi energi, profil tegangan dan arus, harmonisa, tata cahaya, dan sistem tata udara. Data historis konsumsi energi dinormalisasi dengan pengukuran selama dua minggu, menghasilkan perkiraan konsumsi energi tahunan sebesar 159.044 kWh. Gedung Asrama Vyatra I diasumsikan menyumbang ±9,17% dari total penggunaan energi di sepuluh gedung. Intensitas Konsumsi Energi (IKE) gedung ini meningkat dari 135,02 kWh/m²/tahun pada tahun 2021 menjadi 159,2 kWh/m²/tahun pada tahun 2023, melampaui nilai benchmarking gedung perkantoran sebesar 102 kWh/m²/tahun. Hasil pengukuran dengan Power Quality Analyzer (PQA) menunjukkan kondisi unbalance tegangan dan arus masih sesuai standar. Harmonisa arus (THD) juga berada di bawah batas standar IEEE 519-1992, yaitu <20%. Sistem pencahayaan dinilai cukup baik, meskipun masih terdapat area yang lampunya tetap menyala meskipun kosong. Suhu dan kelembaban di beberapa ruangan bervariasi, beberapa memenuhi standar SNI (suhu 25-27°C dan kelembaban relatif 50-70%), sementara yang lain berada di luar rentang tersebut. Implementasi penghematan, terutama pemasangan PLTS atap, direkomendasikan untuk mengurangi konsumsi energi dan memanfaatkan kelebihan energi untuk gedung-gedung lain di kompleks tersebut.
Keakurasian Sistem Monitoring Flow Rate Menggunakan Flow Computer Omni 6000 di PT Energi Nusantara Perkasa Zulrahma, Yasmin; Asepta Surya Wardhana
Jurnal Elektronika dan Otomasi Industri Vol. 11 No. 1 (2024): Jurnal Elkolind Vol. 11 No.1 (Mei 2024)
Publisher : Program Studi Teknik Elektronika Politeknik Negeri Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33795/elkolind.v11i1.5238

Abstract

Di bidang ektraksi LPG perlu adanya peralatan handal yang dipergunakan di stasiun gas, salah satunya dengan penggunaan Flow Computer Omni 6000 yang berfungsi sebagai kalkulator gas flowrate yang ditransmisikan, serta dapat mengetahui komposisi gas yang ditransmisikan ke konsumen. Penggunaan teknologi Flow Computer dalam memonitor laju aliran pada proses industri menjadi alternatif yang efektif karena mampu memberikan pengukuran yang lebih akurat, cepat, dan terpercaya. Flow Computer dapat menghasilkan pengukuran data yang akurat dan terus menerus, sehingga dapat membantu meningkatkan efisiensi produksi dan mengurangi kerugian produksi. Oleh karena itu, penulis tertarik untuk mengambil judul “Keakurasian sistem monitoring Flow Rate menggunakan Flow Computer OMNI-6000 di PT. Energi Nusantara Perkasa” dan melakukan sistem monitoring laju aliran gas dibutuhkan data-data yang akurat agar memperoleh hasil yang sesuai dengan kondisi lapangan.
Training and Certification for Oil and Gas Safety Operators in Bojonegoro and Surrounding Communities Susilo Handoko; Nugroho, Budi Sulistiyo Nugroho; Ayende; Widiyanto, Totok; Hamid, Farid Alfalaki; Indriani, Erdila; Astrie, Astrie Kusuma Dewi; Wardhana, Asepta Surya
Civitas : Jurnal Pengabdian Masyarakat Vol. 1 No. 2 (2024): Desember 2024
Publisher : Indonesian Scientific Publication

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61978/civitas.v1i2.369

Abstract

Occupational Safety and Health (OSH) is indispensable to the oil and gas sector, which encompasses production, processing, and transportation, due to its substantial risk of workplace accidents and fires. Oil and gas OSH is a regulation that ensures the reliable operation and safety of oil and gas institutions/companies by standardizing equipment, personnel, general protocols for oil and gas installations, and operational procedures. OSH certification is a highly regarded indicator of documented expertise and is highly regarded for its credibility. The process of implementing this OSH training and certification involves the identification of training requirements, the preparation of a curriculum, and the coordination with relevant parties, specifically the Bojonegoro Regency Government. Preparation of socialization from participant registration through the selection of participants based on their basic requirements or qualifications. Theory sessions and practical sessions comprise training implementation. The theoretical session involves the delivery of material in the classroom, while the practical session involves the simulation of tool use in the fire and safety laboratory. In collaboration with LSP PPSDM Migas, the STTK certification exam for operator level was administered. The National Professional Certification Agency (BNSP) issues certificates. A total of 25 participants took the STTK exam on 8-9 August 2024, with 23 of them being declared competent and passing. The certification exam for the operator level was administered in conjunction with LSP PPSDM Migas. Furthermore, an additional examination was administered on August 27-28, 2024. Thirty-one individuals were declared competent and successfully completed the certification, out of a total of fifty.
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

Abstract

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 Sistem Proteksi Dan Monitoring Kebocoran Gas Hidrokarbon Berbasis Fuzzy Sugeno Oktavianto, Rinaldi; Wardhana, Asepta Surya; Sahrin, Alfin
PROtek : Jurnal Ilmiah Teknik Elektro Vol 9, No 1 (2022): Protek : Jurnal Ilmiah Teknik Elektro
Publisher : Program Studi Teknik Elektro Universitas Khairun

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33387/protk.v9i1.3365

Abstract

One of the risks in the oil industry is leakage of gases that are toxic or flammable. Fire and Gas System (FGS) used to detect the release of hazardous gases then carry out mitigation actions which can be alarms, indicators, or shutdown systems. This study aims to make a simple prototype of Fire and Gas System in the manifold area with three pipelines (Line-A, Line-B, and Line-C). The output of the system includes indicator, alarm, and shutdown system (closing gas flow and activate the exhaust fan). The system is integrated with Delphi and Arduino. The decision making based on Sugeno fuzzy. Based on the results, it was found that the suitability of fuzzy system reached 100%. The monitoring is displayed in graphical form. While the system response is appropriate, but there is a delay of about 1.5 seconds. Protection system is able to normalize conditions in about 77.5 seconds.
Design of Feed Rate Control System on Loss in Weight Feeder using Programmable Logic Controller Wardhana, Asepta Surya; Nurin Hamdani, Chalidia; Kusuma Dewi, Astrie; Ravy, Javier Umar; Aji, Ferro; Hendrawati, Dwiana
Jurnal Polimesin Vol 21, No 1 (2023): February
Publisher : Politeknik Negeri Lhokseumawe

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30811/jpl.v21i1.3184

Abstract

In the industrial world where there is a material process or solid product, it definitely requires a consistent material distribution process to be used in the next process. And to move material from the main storage area, it is necessary to use a tool commonly called a feeder machine or Loss In Weight Feeder. This tool has a feeder system consisting of a hopper and a feeder mounted on a load cell with high accuracy. So in this study, a feed rate control system was designed on the Loss In Weight Feeder to keep the feed rate process at the desired value, so there is a controller to regulate the motor speed in the feeder. To run the control system, a parameter control is needed, namely PID. In this study, in designing the PID controller using Direct Synthesis tuning which will be carried out using two methods in producing a plant model, namely the process model, the proportional gain (Kp) value is 38.7, integral gain (Ki) is 0.6, and derivative gain (Kp) is 0.6. Kd) of 8.12. And the plant structure model of the Auto Regressive eXogenous (ARX) model, the proportional gain (Kp) value is 13, the integral gain (Ki) is 0.78, and the derivative gain (Kd) is 12.85. Based on direct testing, the PID controller parameter that is suitable and reliable with the desired process response from the feed rate output from the Loss In Weight Feeder prototype is the PID controller parameter using Direct Synthesis tuning based on the plant process model. In the system test without disturbance, it produces a time constant (τ) of 3 seconds, settling time (ts) of 5 seconds, delay time (td) of 1.5 seconds, overshoot (Mp) of 79.92% and steady state error (ess) of 0%. And when testing the prototype by providing interference, it shows a fairly good interference rejection
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

Abstract

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.
The Effect of Electric Current On Hydrogen Gas Production Using Water Electrolysis Process Wardhana, Asepta Surya; Yuliatin, Umi; Yasmin, Amida
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.v22i1.4659

Abstract

New renewable energy sources are being developed to replace conventional energy sources such as biofuels, electric cars, and solar cars in the transportation sector. However, this generation has limitations in that it requires external energy sources to be converted into electricity.This study examined the development of alternative energy sources through water electrolysis to produce hydrogen. The factors affecting the electrolysis process, such as the catalysts and external voltage, were investigated. The study successfully implemented hydrogen production using a wet cell electrolysis reactor design involving components such as an Arduino, MQ-8 gas sensor, and DS18B20 temperature sensor. This study used a reactor with electrodes of six plates, where the electrode plates werethe anode and cathode of three plates each. Hydrogen levels were measured using an MQ-8 semiconductor sensor. The test results showed that varying the current in the electrolysis reactor increased the hydrogen concentration to a maximum of 3405.77 PPM. A decrease in hydrogen levels occurred after 20-40 minutes due to the saturated electrolytes. Factors such as the ion concentration, hydration, ion attraction, and temperature also influence the conductivity of the solution duringelectrolysis. The results of this study obtained a minimum average hydrogen content of 646.054 PPM and a maximum of 2932.306 PPM. The reactor temperature conditions were stable at an average temperature of 27°C.
Pemanfaatan Panel Surya Untuk Pompa Irigasi Tanaman di Area Perhutani Jatirejo Cepu Asepta Surya Wardhana; Ayende, Ayende; Pujianto, Pujianto; Roni Heru Triyanto; Astrie Kusuma Dewi
ABDIKAN: Jurnal Pengabdian Masyarakat Bidang Sains dan Teknologi Vol. 2 No. 4 (2023): November 2023
Publisher : Yayasan Literasi Sains Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55123/abdikan.v2i4.2691

Abstract

Indonesia is an agricultural country with a broad forest area with agricultural areas everywhere and evenly distributed. The Cepu Subdistrict area has fairly broad and has not been fully utilized maximally. The main priority faced by consistent water needs to maintain soil fertility. Solution This need is needed a good irrigation system during the dry season. Conventionally the use of diesel water pumps with fuel for agricultural irrigation systems is needed expensive and ineffective. The utilization of solar power for water pumps is one of the alternatives to reliable, efficient, effective, and efficient solutions to keep the irrigation system running well during the dry season. This service has successfully implemented the use of solar panels of 200WP to run a submersible pump with a depth of ± 4 meters infiltration well. This applied technology uses a timer automation system that runs pump performance during the day. For irrigation systems, implement an automation system in water with 2: 1 where 2 hours of watering and 1-hour filling water reservoir. This application can improve the planting results from farmers around Perhutani land. The land that is originally difficult with water will guarantee the water needs during the dry period.
Pengujian Sistem Pengendalian Temperatur pada Prototipe Heat Exchanger Berbasis PID Wardhana, Asepta Surya; Amelinda Azizah, Hana; Hamdani, Chalidia Nurin
Jurnal Otomasi Kontrol dan Instrumentasi Vol 13 No 2 (2021): Jurnal Otomasi Kontrol dan Instrumentasi
Publisher : Pusat Teknologi Instrumentasi dan Otomasi (PTIO) - Institut Teknologi Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5614/joki.2021.13.2.3

Abstract

The design of a PID-based heat exchanger temperature control system means controlling the temperature of the cold water output of the heat exchanger that has been designed to match the set point value through PID (Proportional Integral Derivative) controller mode control. Temperature control is carried out by controlling the flow rate of hot water. When the set point of the heat exchanger cold water temperature is increased, the servo valve opens more so that the hot water flow rate increases. The system interface is done through Delphi 7 software which displays the display of numbers and graphs of the received process data. The PID controller mode parameter value is obtained through trial and error method. As a comparison, the ideal PID calculation is carried out using the direct synthesis method to be applied to the calculation of system control in the Arduino microcontroller. The ideal PID calculation requires bump test results from each process variable. The results of data analysis and interface graphs show that an increase in the set point from 25℃ to 32℃ at the temperature of the heat exchanger output water causes the servo valve opening to approach full opening and is in a hunting system condition when the temperature has reached the set point. From the test results obtained Time Constant 89.744 seconds, Settling Time 127.232 seconds and Rise Time 127.8 seconds.