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All Journal ELKOMIKA: Jurnal Teknik Energi Elektrik, Teknik Telekomunikasi, & Teknik Elektronika Proceeding of the Electrical Engineering Computer Science and Informatics Prosiding Seminar Nasional Teknoka JMM (Jurnal Masyarakat Mandiri) TESLA: Jurnal Teknik Elektro MAESTRO Prosiding Konferensi Nasional PKM-CSR Industrial Research Workshop and National Seminar Jurnal INFOTEL Artinara Jurnal Pengabdian Masyarakat Tekno
Musafa, Akhmad
Universitas Budi Luhur
Agriculture, Biological Sciences & Forestry Humanities Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Economics, Econometrics & Finance Education Electrical & Electronics Engineering Engineering Environmental Science Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Mechanical Engineering Nursing Public Health Social Sciences Other

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Object Position Estimation based on Dual Sight Perspective Configuration Dion Setiawan; Maulana Ifdhil Hanafi; Indra Riyanto; Akhmad Musafa
JURNAL INFOTEL Vol 13 No 2 (2021): May 2021
Publisher : LPPM INSTITUT TEKNOLOGI TELKOM PURWOKERTO

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20895/infotel.v13i2.546

Abstract

Development of the coordination system requires the dataset because the dataset could provide information around the system that the coordination system can use to make decisions. Therefore, the capability to process and display data-related positions of objects around the robots is necessary. This paper provides a method to predict an object’s position. This method is based on the Indoor Positioning System (IPS) idea and object position estimation with the multi-camera system (i.e., stereo vision). This method needs two input data to estimate the ball position: the input image and the robot’s relative position. The approach adopts simple and easy calculation technics: trigonometry, angle rotations, and linear function. This method was tested on a ROS and Gazebo simulation platform. The experimental result shows that this configuration could estimate the object’s position with Mean Squared Error was 0.383 meters. Besides, R squared distance calibration value is 0.9932, which implies that this system worked very well at estimating an object’s position.
TRACKER SYSTEM SINGLE AXIS SOLAR CONCENTRATOR IN 2 W SUN HEAT POWER PLANT Ananda Eddy Irvine; Sujono Sujono; Akhmad Musafa
MAESTRO Vol 6 No No 2 (2023): Vol.6 No. 2. Oktober 2023
Publisher : FAKULTAS TEKNIK UNIVERSITAS BUDI LUHUR

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Abstract

This paper discusses the single-axis solar concentrator tracker system for solar thermal power plants. This system concentrates the harvesting of heat from solar radiation to increase the electrical power generated from the solar thermal conversion process. The solar concentrator is designed as a parabola and can adjust the direction following the sun's motion. The overall system work is regulated by Arduino Mega 2560. A 24-volt DC motor and BTS7690 driver are used to drive the parabola. RTC DS3231 is used to provide real-time data. ACS712 sensor is used to measure the current and voltage generated. The conversion of solar heat into electrical energy is done using Peltier SP1848. All generated data is recorded to the SD Card module, which will later be used to analyze the overall system performance. The tracker system is designed to move following the sun’s position, starting from 08:00 at position 19O to 17:00 at position 139O. Update the position or direction of the parabola to 15O, done every hour. The effectiveness of the tracker is assessed by comparing the solar concentrator system that is not equipped with a tracker. From the tests conducted for two consecutive days, the tracker-equipped solar concentrator system produced an average percent increase in electrical power of 4.86% on the first day and 5.26% on the second day. The average percent increase in power for two days was 5.06%. The results show that the application of the tracker is able to increase the productivity of the solar thermal power generation system. This opens up opportunities for larger-scale deployment in solar concentrator farms.
Rancang Bangun Sistem Pendeteksian Objek Halang Dan Pengereman Otomatis Pada Robot Forklift Lutfi Wahyu Aryanto; Sujono Sujono; Akhmad Musafa
MAESTRO Vol 6 No No 2 (2023): Vol.6 No. 2. Oktober 2023
Publisher : FAKULTAS TEKNIK UNIVERSITAS BUDI LUHUR

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Abstract

Forklifts are tools to move large and large items to the place you want to go, forklifts are widely used in the warehousing section in running forklifts an operator is needed. The problems that occur include forklifts crashing into goods in the warehouse, forklifts crashing into forklifts because of the problems that occur, a prototype of an obstacle object detection system and automatic braking on a forklift robot is made. The parts of the forklift robot are the obstacle detection system in the form of (ultrasonic sensor and pixy camera) and the automatic braking system, namely (motor driver and dc motor). ). The working principle of the forklift robot is that the forklift follows the line that has been made if the detection system can detect an obstacle object, the braking system will automatically brake with a robot distance of 20 cm from the obstacle object, after that the buzzer will turn on and provide notification if an obstacle object is detected, if the obstacle object is moved, the robot will move again until the finish. In the overall robot testing scheme, the robot will be given several objects in the form of blue block-shaped objects, red block-shaped objects and green triangular objects, the forklift robot testing scheme is carried out 6 times with objects placed in different positions. The result of testing the forklift robot is that the robot can detect obstacle objects in the form of red and blue blocks and green triangles if the position of the object is in front of the forklift robot The conclusion is that the forklift robot can detect obstacles if the object is in front of the forklift robot.
PREDIKSI IRADIASI MATAHARI MENGGUNAKAN ALGORITMA ARTIFICIAL NEURAL NETWORK Fatahillah Al Mahfudz; Suwasti Broto; Akhmad Musafa
MAESTRO Vol 6 No No 2 (2023): Vol.6 No. 2. Oktober 2023
Publisher : FAKULTAS TEKNIK UNIVERSITAS BUDI LUHUR

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Abstract

Prediksi iradiasi matahari merupakan hal yang krusial dalam merancang dan mengembangkan sistem energi terbarukan dengan energi matahari. Dalam tugas akhir ini dilakukan prediksi iradiasi matahari dengan meggunakan algoritma Artificial Neural Network (ANN) dalam bentuk model sekuensial. Model Sequential ANN dilatih dengan dataset yang mencakup berbagai faktor cuaca seperti suhu, kelembaban, tekanan udara, serta data radiasi matahari historis. Proses pelatihan dimulai dengan membagi dataset menjadi data latih dan data uji dengan tiga variasi komposisi data latih dan uji yang berbeda (80%:20%), (75%:25%), dan (66%:34%). Model ANN yang dibuat terdiri dari empat lapisan, satu lapisan masukan, dua lapisan tersembunyi dengan jumlah neuron (32, 64), dan satu lapisan keluaran. Melalui iterasi berulang, model diperbarui menggunakan algoritma optimisasi Adaptive Moment Estimation (ADAM) untuk mengoptimalkan parameter. Model ANN diuji dengan tiga variabel masukan iradiasi matahari yang berbeda (Global Horizontal Irradiance, Diffuse Horizontal Irradiance, dan Direct Normal Irradiance). Hasil pengujian menunjukkan bahwa model Sequential ANN mampu menghasilkan prediksi iradiasi matahari dengan tingkat akurasi yang signifikan. Hasil prediksi menunjukkan Mean Absolute Error (MAE=0,0029) , Mean Absolute Percentage Error (MAPE=2,3289%), Root Mean Square Error (RMSE=0,0038), dan Mean Square Error (MSE=0,0001) pada komposisi data latih dan uji (80%:20%).
Pemberdayaan Masyarakat Pada Pembuatan Blender Sampah Untuk Bahan Baku Biogas Di Perumahan Pondok Lakah Permai yani prabowo; Suwasti Broto; Nazori AZ; Sujono Sujono; Akhmad Musafa; Peby Wahyu Purnawan; T.W. Wisjnuadji; Siswanto Siswanto
Jurnal Pengabdian kepada Masyarakat TEKNO (JAM-TEKNO) Vol 1 No 2 (2020): Desember 2020
Publisher : Ikatan Ahli Informatika Indonesia

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Abstract

Budi Luhur University in collaboration with residents of Pondok Lakah Permai Ciledug housing, collaborates in the field of household scale waste management to be used as biogas raw material. The problem faced by environmental managers is that waste is not transported then rot. To solve this problem, the waste is processed into biogas through a fermentation process. The fermentation process is used to break down organic waste into methane gas which can be used for cooking. The role of the community is needed to collect waste raw materials and sort organic and non-organic waste. The purpose of this community service activity is to empower residents to separate waste from household waste to be processed into biogas. The method used is to provide counseling and continue with the manufacture of a waste chopping blender to process the waste. The results of this service can be concluded that the first one has produced a biogas reactor unit and a waste crusher / blender, then after training to the target community on how to make a biogas reactor, the second conclusion is that the two communities can operate the tools that have been made and can also sort waste. as a raw material for biogas. In this activity, the community understands how to protect the environment and can operate a waste chopping biodigester and blender so that the waste that had been piling up is now processed into biogas.
Perancangan Sistem Akuisisi Data pada Reaktor Biogas Sampah Organik Skala Kecil Setiawan, Prahyudi; Musafa, Akhmad
Prosiding Industrial Research Workshop and National Seminar Vol. 15 No. 1 (2024): Prosiding 15th Industrial Research Workshop and National Seminar (IRWNS)
Publisher : Politeknik Negeri Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35313/irwns.v15i1.6229

Abstract

Pengukuran parameter biogas seperti volume biomassa, suhu reaktor, kadar dan tekanan gas penting dilakukan sebelum merancang sistem pembangkit energi listrik dari biogas. Paper ini membahas perancangan sistem akuisisi data pada reaktor biogas sampah organik skala kecil yang digunakan untuk mengukur volume biomassa, suhu reaktor, kadar dan tekanan gas. Sistem akuisisi data terdiri dari sensor volume menggunakan ultrasonik, sensor suhu menggunakan DHT11, sensor gas menggunakan MQ-2 dan sensor tekanan menggunakan water pressure sensor. Pengukuran volume biomassa pada reaktor biogas dilakukan dengan memodifikasi persamaan volume tabung dengan jari-jari tabung yang dilakukan berdasarkan data hasil pengukuran jarak antara permukaan atas reaktor biogas dan permukaan tumpukan biomassa. Pengukuran kadar gas dengan sensor MQ-2 dilakukan dengan menentukan nilai ppm gas yang diukur. Kemudian nilai ppm digunakan untuk mencari persentase kandungan gas menggunakan persamaan dan karakteristik sensitivitas sensor. Hasil pengujian menunjukkan bahwa sensor volume memiliki rata – rata persentase error sebesar 14.15% dikarenakan pada pembacaan jaraknya sensor memiliki akurasi pendeteksian 1cm±1%. Sensor MQ-2 mampu mendeteksi kadar gas, pada pengujuan ini mengukur kadar gas propana sebesar 45.02%. Sensor DHT11 memiliki rata – rata persentase error sebesar 0.83% dikarenakan memiliki ketelitian ±20C. Sensor tekanan water pressure sensor memiliki rata – rata error sebesar 29.21%.
Perancangan Pembangkit Listrik Termoelektrik pada Proses Refrigerasi Air Conditioner dengan Metode Fuzzy Logic SETIAWAN, AHMAD; ZAKARIA, NAZORI AGANI; MUSAFA, AKHMAD; SUJONO, SUJONO
ELKOMIKA: Jurnal Teknik Energi Elektrik, Teknik Telekomunikasi, & Teknik Elektronika Vol 9, No 1: Published January 2021
Publisher : Institut Teknologi Nasional, Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26760/elkomika.v9i1.1

Abstract

ABSTRAKPada penelitian ini dibahas tentang pembangkit listrik termoelektrik pada refrigerasi air conditioner. Bagian sistem terdiri dari air conditioner yang sudah dimodifikasi dengan menambahkan 50 buah modul termoelektrik dengan kontroler. Penggunaan termoelektrik bertujuan merubah suhu panas dan dingin pada air conditioner kedalam bentuk listrik. Tegangan yang dihasilkan termoelektrik dikontrol dengan metode fuzzy logic dengan parameter masukan nilai error dan delta error serta keluaran fuzzy berupa duty cycle yang mengatur switching dari DC-DC Converter. Hasil yang didapatkan pada penelitian ini, air conditioner dapat dimanfaatkan untuk pembangkit listrik termoelektrik dengan tegangan open circuit termoelektrik dapat mencapai 14 Volt saat delta temperatur 32,38 ̊ C. Hasil pengujian dengan kontroler fuzzy diperoleh respon sistem dengan delay time 6 menit 18 detik, rise time 5 menit 51 detik, steady state error 0,8 pada set poin 7,2 Volt. Tegangan yang dihasilkan termoelektrik generator dapat digunakan untuk pengisian aki dengan arus pengisian 0,33 mA.Kata kunci: Termoelektrik Generator, Peltier, Air Conditioner, Logika Fuzzy, HVAC ABSTRACTThis research discusses the thermoelectric power generation in the air conditioner refrigeration process. The system consists of air conditioner that has been modified by adding 50 thermoelectric and controller. The voltage generated by the thermoelectric is controlled by the fuzzy logic method with input parameters of error, delta error values, and the output fuzzy is a duty cycle that will regulate voltage of DC-DC Converter. The results obtained in this research, air conditioner can be used for thermoelectric power generation with open circuit voltage without control can reach 14 Volts when the delta temperature is 32.38 ̊ C. The results with fuzzy control system obtained response system with a delay time of 6 minutes 18 seconds , rise time 5 minutes 51 seconds, steady state error 0.8 at set point of 7.2 volts. The voltage generated by the thermoelectric generator can be used to charge the battery with a charging current of 0.33 mA.Keywords: Thermoelectric Generator, Peltier, Air Conditioner, Fuzzy Logic, HVAC
PELATIHAN PENGOLAHAN SAMPAH PLASTIK RESIDU MENJADI BAHAN PAVING BLOK Sujono, Sujono; Musafa, Akhmad; Purnawan, Peby Wahyu; Budi, Agus Setya; Susilowati, Tutik Sri
Artinara Vol 3 No 3 (2024): Jurnal Artinara Oktober 2024 (In Press)
Publisher : Universitas Budi Luhur

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36080/artinara.v3i3.243

Abstract

Residual plastic is part of plastic waste that has no economic value and has the potential to pollute the environment. One of the utilization of residual plastic is pyrolysis technology to produce fuel. However, pyrolysis is economically unfavorable and the technology is complicated. In this community service activity, collaboration with Bank Sampah Budi Luhur has been carried out in making a residual plastic processing tool with a capacity of 5 liters, cheap, practical, and easily understood by ordinary people. The purpose of this activity is to create a tool for utilizing residual plastic. The tool made has been tested in the process of making paving block product samples. Laboratory tests of the samples were carried out and obtained strength against compressive force reached 33.5 kg/cm2 for the composition of materials consisting of used oil, chopped residual plastic, and sand in a ratio of 1:1:0.5. Socialization of the operation of residual plastic waste processing tools was carried out to residents of Employee 3, Karang Tengah Kel, Kec. Ciledug, Tangerang, which is a partner of the Waste Bank of Budi Luhur University. The evaluation of the activity showed that the community gained insight into residual plastic waste processing tools so that they were more useful and able to reduce the rate of environmental pollution.
Design and Construction of a Solar Concentrator System as a Small-Scale Electrical Energy Harvester MUSAFA, AKHMAD; CHAN, HERLANGGA PRATAMA; AZZAHRA, CHEISA KURNIA; KHAIRUDIN, DICKY; FATH, NIFTY
ELKOMIKA: Jurnal Teknik Energi Elektrik, Teknik Telekomunikasi, & Teknik Elektronika Vol 13, No 2: Published April 2025
Publisher : Institut Teknologi Nasional, Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26760/elkomika.v13i2.140

Abstract

Harvesting solar energy as an alternative source of electrical energy, besides using photovoltaic panels, can also be done with a solar concentrator. This paper discusses the design of a solar concentrator system that uses a parabolic antenna as a small-scale electrical energy harvester. The inner surface of the parabola is coated with a metallized PET film, which is to reflect sunlight to a single focal point on an iron plate attached to a thermoelectric generator (TEG). The TEG functions to convert heat energy into electrical energy. The Peltier SP1848 output voltage will be increased using a boost converter to reach a voltage level that can be used for battery charging. The electrical energy stored in the battery is used to supply the AC power load. The experimental findings indicate that the electrical energy yield of the solar concentrator is 3.8 volts, with an average ambient temperature of 200C.
Co-Authors Ahmad Ridho Ahmad Syamsul Ananda Eddy Irvine Aris Prihatin AZZAHRA, CHEISA KURNIA Budi, Agus Setya CHAN, HERLANGGA PRATAMA Dendy Apriyana Anjasmoro Dion Setiawan Eko Afrily Trisnanto Fatahillah Al Mahfudz Fath, Nifty Indra Riyanto Indra Riyanto Jalu Nuralim KHAIRUDIN, DICKY Laksana, Eka Purwa Lutfi Wahyu Aryanto Luthfitaris Haidiazi Soehartono Maulana Ifdhil Hanafi Muhammad Fadli Arief Nazori AZ Noeroes Shobie Ahfan Nurroqim, Alfian Ogi Saputra Peby Wahyu Purnawan Pramudya Widyantoro Priyojatmiko, Purwanto Purwanto Priyojatmiko SETIAWAN, Ahmad Setiawan, Prahyudi Sirait, Rummi Santi Rama Siswanto, Siswanto Sujono Sujono Sujono Sujono Sujono Sujono, Sujono Susilowati, Tutik Sri Suwasti Broto Suwasti Broto Suwasti Broto T.W. Wisjnuadji Tri Aji Saputra Widyantoro, Pramudya Windihastuty, Wiwin Yani Prabowo Yudha Maulana Akbar Zacky Yarfa'ul Ahla Zaky Wafa Albahari