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All Journal Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan JOURNAL OF ELECTRICAL AND SYSTEM CONTROL ENGINEERING JOURNAL OF INFORMATICS AND TELECOMMUNICATION ENGINEERING JURNAL MEDIA INFORMATIKA BUDIDARMA Jurnal Teknologi Terapan Jurnal Mekanova : Mekanikal, Inovasi dan Teknologi Physics Education Research Journal Joule (Journal of Electrical Engineering) SAINTI: Majalah Ilmiah Teknologi Industri
Abdul Azis Rahmansyah
Politeknik Teknologi Kimia Industri Medan
Aerospace Engineering Agriculture, Biological Sciences & Forestry Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Computer Science & IT Control & Systems Engineering Earth & Planetary Sciences Education Electrical & Electronics Engineering Energy Engineering Industrial & Manufacturing Engineering Mechanical Engineering Physics

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Analisa Pengaruh Temperatur Terhadap Laju Pengeringan Crumb Rubber Pada Dryer Menggunakan Energi Panas Pembakaran Pada Burner Simanjuntak, Agus Wiranto; Darmadi, Herry; Rahmansyah, Abdul Azis; Nelza, Novia; Bukhari, Bukhari
Jurnal Mekanova : Mekanikal, Inovasi dan Teknologi Vol 9, No 1 (2023): April
Publisher : universitas teuku umar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35308/jmkn.v9i1.7572

Abstract

Crumb rubber is a semi-finished natural rubber product that still contains moisture content. One of the most needed crumb rubber standards is SIR 20 (crumb rubber) with a maximum moisture content of 0.80% according to Indonesia National Standard. To remove the water content, it is necessary to carry out the drying process. Drying is a process to evaporate water in a material by using heat. The drying process is carried out in the dryer unit. Hot air is obtained from burning a burner with a temperature of 130°C. The burner will heat the air and then distribute the hot air to the dryer unit with a dryer temperature of 116°C. In the dryer unit, crumb rubber will be dried with a drying process time of 172.62 minutes. The total heat required to dry the crumb rubber with an incoming feed weight of 626.66 kg, and the moisture content of the crumb rubber after drying is an average of 0.53%, this result still meets the standards of crumb rubber. ) SIR 20 of a maximum of 0.80%.
Sistem Kontrol dan Monitoring Level dan Flow Tangki Sirkulasi Berbasis ESP8266 Gultom, Golfrid; Azis Rahmansyah, Abdul; Irfian Situngkir, Dejoi
JOURNAL OF ELECTRICAL AND SYSTEM CONTROL ENGINEERING Vol. 8 No. 2 (2025): Journal of Electrical and System Control Engineering
Publisher : Universitas Medan Area

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31289/jesce.v8i2.13735

Abstract

Fluid circulation system is a process that is often carried out in wastewater treatment, chemical industry processes or feed water for boilers. Controlling and monitoring the flow and level of fluid in the circulation system is very vital in a process, especially in the chemical industry process. The Internet of things using the ESP8266 device can be utilized for the effectiveness and efficiency of control and monitoring. In this study, flow sensors and level sensors are combined into a flow and level control model in a fluid circulation system with circulation between 2 tanks. The accuracy of tank level measurement is 97.05% when compared between actual measurements and measurements on wirelessly connected devices. The actuator response in the circulation system is the main part that will be modeled and built on wireless applications and a fairly reliable response is obtained even though there is an average response delay of 1.28 seconds. From the results of the research that was developed, it has been able to become a level and flow control and monitoring system using the ESP 8266 device as part of the control and monitoring system developed in the industrial 4.0 scheme.
Implementasi Neural Network untuk Monitoring Level CPO dan Pengendalian Pompa Berbasis Arduino dan Aplikasi Android pada Tangki Bulking dalam Rangka Transformasi Industri 4.0 Abdul Azis Rahmansyah; Ahmad Rizki Taufagus; Anna Angela Sitinjak; Golfrid Gultom
Joule (Journal of Electrical Engineering) Vol 6, No 2: Agustus 2025
Publisher : Politeknik Bosowa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61141/joule.v6i2.796

Abstract

The application of automatic technology based on artificial intelligence is one of the important elements in supportingthe transformation towards Industry 4.0, especially in the palm oil industry sector. This study aims to develop a CrudePalm Oil (CPO) level monitoring system in a bulking tank using an ultrasonic sensor and automatically regulate thepump speed based on the classification of the Neural Network (NN) results implemented on an Arduino microcontroller.The designed system utilizes an HC-SR04 ultrasonic sensor to read the CPO surface height, then the data is processedthrough an artificial neural network model with one hidden layer containing three neurons and six output classes todetermine the pump speed level. The results of this conversion become a PWM signal which is used to control the pumpmotor through the motor driver. Testing was carried out 10 times with variations in liquid height, showing that the sensorhas a high level of accuracy with an average error of 0.13 cm. The NN model produces a classification accuracy of 100%on the test data, and the motor speed control runs proportionally to the liquid level. This system has proven to beresponsive and capable of controlling fluids efficiently and in real-time. The results of the study indicate that thisapproach is feasible to be applied for intelligent and adaptive automation of filling and emptying CPO tanks, in line withthe principles of Industry 4.0
ANALISIS BEBAN KERJA OPERATOR OPEN TOP ROLLER PADA STASIUN PENGGULUNGAN INDUSTRI PENGOLAHAN TEH MENGGUNAKAN METODE WORK SAMPLING Sisri Gusmita; Rizki Fadhillah Lubis; Abdul Azis Rahmansyah; Elvy Sahnur Nasution; Muhammad Iqbal Harapan Muslim Siregar; Rahmad Syukur Siregar
SAINTI: Majalah Ilmiah Teknologi Industri Vol. 23 No. 1 (2026)
Publisher : Politeknik ATI Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52759/sainti.v23i1.87

Abstract

Beban kerja yang melebihi kapasitas kerja operator dapat menurunkan efektivitas kerja serta meningkatkan risiko kelelahan pada proses produksi. Salah satu aktivitas yang berpotensi meningkatkan beban kerja adalah manual material handling yang dilakukan secara berulang selama proses produksi berlangsung. Penelitian ini bertujuan untuk mengevaluasi beban kerja operator Open Top Roller (OTR) pada industri pengolahan teh menggunakan metode work sampling. Pengumpulan data dilakukan melalui observasi langsung terhadap dua operator OTR selama lima hari kerja dengan pengamatan acak pada jam kerja efektif. Analisis meliputi pengukuran produktivitas, uji keseragaman dan kecukupan data, penentuan rating factor menggunakan metode Westinghouse, perhitungan allowance, waktu baku, dan beban kerja operator. Hasil penelitian menunjukkan bahwa tingkat produktivitas operator tergolong tinggi dengan persentase aktivitas produktif sebesar 91,78% dan 92,86%. Namun demikian, nilai beban kerja masing-masing sebesar 1,61 dan 1,66 menunjukkan bahwa kedua operator berada pada kategori overload. Tingginya beban kerja dipengaruhi oleh aktivitas manual material handling yang dilakukan secara berulang dan tingginya intensitas kerja selama proses penggulungan. Oleh karena itu, diperlukan evaluasi sistem kerja melalui pengurangan aktivitas manual material handling, perbaikan metode kerja, dan peninjauan pengaturan kerja untuk menciptakan kondisi kerja yang lebih efektif.
Thermal Characterization and Heat Conductivity of Palm Kernel Shell-Based Briquettes Enda Rasilta Tarigan; Abdul Azis Rahmansyah; Muhammad Khatami
Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan Vol 23, No 2 (2026): July 2026
Publisher : Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/presipitasi.v0i0.%p

Abstract

Palm kernel shell (PKS), a major by-product of the palm oil industry, has emerged as a promising sustainable feedstock for solid biofuel briquette production. This study presents a systematic review of PKS briquettes, emphasizing their thermal properties, briquetting technologies, pretreatment methods, environmental and economic impacts, and future prospects of PKS briquettes. A PRISMA-based methodology was applied to ensure the transparent identification, screening, and synthesis of relevant peer-reviewed studies on PKS briquette production and performance. The review indicates that PKS briquettes generally possess a high calorific value, substantial fixed carbon content, and competitive combustion performance compared with other biomass fuels. Advances in densification techniques and pretreatment processes have improved the fuel quality, durability, and energy efficiency. Despite these strengths, several research gaps remain. Standardized data on thermal conductivity and heat transfer are limited, and comparative assessments with conventional fuels, such as coal and firewood, are insufficient. Moreover, inconsistencies in the experimental conditions hinder cross-study evaluation, and emission characteristics and large-scale industrial feasibility are underreported. By consolidating current findings and identifying critical knowledge gaps, this review offers a structured foundation for future research and informed policymaking, supporting the integration of PKS briquettes into sustainable energy and circular economy strategies in palm oil–producing regions
Co-Authors Abdul Rofiq H Ahmad Rizki Taufagus Akhyar Muchtar, Akhyar Andi Shulfah Amir Bukhari Bukhari Darmadi, Herry Dejoi Situngkir Elvy Sahnur Nasution Enda Rasilta Tarigan Fajri Apriadi, Nur Fatmawati Azis Ginting, Manan Golfrid Gultom Golfrid Gultom Gultom, Golfrid Hutajulu, Poltak Evencus Irfian Situngkir, Dejoi Irvawansyah, Irvawansyah Irwan Lahamuddin Manan Ginting Muhammad Iqbal Harapan Muslim Siregar Muhammad Khatami Mukhlis Mukhlis Nelza, Novia Nur Fajri Apriadi Rahmad Syukur Siregar Rizki Fadhillah Lubis Samuel Gideon Simanjuntak, Agus Wiranto Sisri Gusmita Tarigan, Enda Rasilta Usman Usman Usman Usman