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Journal : REKAYASA

Studi Gasifikasi Pengembangan Tongkol Jagung dengan Jerami Padi Menggunakan Reaktor Downdraft Dengan Dua Masukan Udara Tekan Irawan, Ibnu; Samlawi, Achmad Kusairi; Budiarto, Hairil
Rekayasa Vol 15, No 1: April 2022
Publisher : Universitas Trunojoyo Madura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21107/rekayasa.v15i1.12895

Abstract

The production of corn and rice produced by farmers in East Java has the potential to cause agricultural waste, therefore corn cobs are waste that requires special processing in order to be used optimally. Agricultural waste corn cobs and rice straw can be converted into gas fuel (Syngas). The purpose of this study was to determine the performance of gasification seen from the temperature distribution and composition of combustible gases such as CO, H2 and CH4. The downdraft gasifier type is used and applies the AR and E.R ratio to the temperature. For the pyrolysis and oxidation regions, the intake air varies (ARpir-oxi) 80%; 70%; and 0% at 14.5 air intake; 19.3; and 24.1 Nm3/hour from E.R 0.3, 0.4, and 0.5. Air intake in the adjust area using a valve. Temperature measurement using the type K thermocouple. The results show that the maximum temperature using ARpir-oks = 80%, the drying zone temperature is 187°C, the pyrolysis zone is 488°C, the oxidation zone is 895°C and the reduction zone is 585°C. Meanwhile, the highest production of CO gas is 20.50% and H2 gas is 14.55% using an ER of 0.4. Meanwhile, CH4 decreased for all ER values using ARpir-oks = 80%.
Perancangan Thermoelectric Generator (TEG) sebagai Sumber Energi Terbarukan Faikul Umam; Hairil Budiarto; Sri Wahyuni
Rekayasa Vol 10, No 2: Oktober 2017
Publisher : Universitas Trunojoyo Madura

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (379.093 KB) | DOI: 10.21107/rekayasa.v10i2.6345

Abstract

Abstrak: Kebutuhan bahan bakar fosil untuk pembangkit listrik semakin meningkat, sehingga cadangan bahan bakar semakin menipis. Energi listrik merupakan energi yang sangat mudah untuk dipergunakan, karena sangat mudah dikonversi menjadi bentuk energi lain dengna mudah dan efisien. Pemerintah telah mencanangkan untuk berhemat energi dan memberikan program program perancangan energi terbarukan melalui perubahan energi matahari, angin, air dan biomassa. Penelitian energi terbarukan pada solar cell, micro hydro dan biomassa telah banyak dilakukan, isu terkini pada energi terbarukan adalah pemanfaatan panas buang (waste heat), pada dunia industri dan permesinan seperti automobiles, boilers dan radiator pada mobil dan kapal banyak menyumbang panas yang terbuang. Thermoelectric generator (TEG) merupakan jenis semikonduktor yang dapat menghasilkan tegangan berdasarkan perbedaan temperatur yang melewati kedua sisi alatnya. Perancangan media ajar energi terbarukan dengan memanfaatkan Thermoelectric generator (TEG) akan menggunakan dua jenis fluida yaitu fluida panas da fluida dingin, untuk membangkitkan fluida panas digunakan heater dan untuk fluida dingin akan menggunakan air es. Metode pada penelitian ini adalah eksperimental dari 5 TEG yang disusun secara seri dan di paralel dengan 5 TEG berikutnya. Data hasil percobaan bahwa media ajar TEG dapat menghasilkan tegangan 9,20 volt pada kondisi fluida panas pada temperatur 64oC dan fluida dingin pada temperatur 11oC, sedangkan perbedaan temperatur (ΔT=53oC).
Kestabilan Kecepatan Mobile Robot pada Lintasan Mendatar, Tanjakan Serta Turunan Faikul Umam; Sri Wahyuni; Hairil Budiarto
Rekayasa Vol 12, No 2: Oktober 2019
Publisher : Universitas Trunojoyo Madura

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (399.661 KB) | DOI: 10.21107/rekayasa.v12i2.6396

Abstract

Mobile robot merupakan salah satu kategori robot yang memiliki fungsi untuk berpindah tempat. Pengembangan dari mobile robot yaitu implementasi perubahan lintasan mendatar¸ tanjakan serta turunan. Ketika robot berjalan terdapat gangguan tak terukur dari luar yang mempengaruhi respon sistem. Hal ini menyebabkan kecepatan robot berubah-ubah, sehingga dibutuhkan suatu mekanisme yang mampu membuat mobile robot menjaga stabilitas dan kemampuan jelajah untuk kestabilan kecepatan mobile robot. Penelitian ini menerapkan metode PID untuk mengatur servo berdasarkan input dari gyro Z, sehingga membuat mobile robot berjalan tanpa keluar dari lintasannya dengan nilai konstanta Kp = 5, Ki = 0 dan Kd = 1. Respon sistem mencapai stedy state dengan nilai servo 90°, dari detik ke-8 sampai detik ke-13,5. Mobile robot dapat menjaga kestabilan kecepatan ketika melewati lintasan mendatar, tanjakan serta turunan dengan menerapkan metode fuzzy logic controller dan kontrol PID dengan nilai konstanta Kp = 1,5, Ki = 0 dan Kd = 0,2. Respon yang diberikan oleh sistem mencapai steady state nilai kecepatan 0,88 pada detik ke-16,4. Sensor yang digunakan untuk mengetahui kemiringan lintasan yaitu sensor MPU6050 nilai gyro Y dan sensor rotary encoderMobile Robot Speed Stability on Flat Road, Upward and Descend TrajectoriesAbstractMobile robot is a robot that can move to other places. The development of a mobile robot is the implementation of changes in in flat, upward and descending trajectories. When robot runs there are immeasurable interference that affects the system response. This causes robot speed is change, so we need a solution for mobile robot to maintain stability and movement capability for stability the robot speed. This research applies the PID method to set the servo based on the input from the gyro Z, so as to make the mobile robot run without leaving its path with constant values Kp = 5, Ki = 0 and Kd = 1. This research applies PID method to set servo motor based on input from gyro Z, so as to make the mobile robot run on path with constant values Kp = 5, Ki = 0 and Kd = 1. The system response reaches steady state when the servo value is 90 °, from the 8th second to the 13.5th second. Mobile robots can maintain the stability of speed when flat road, upward, and descend trajectories by applying the fuzzy logic controller and PID control methods with constant values of Kp = 1.5, Ki = 0 and Kd = 0.2. The response given by the system reaches a steady state speed value of 0.88 at 16.4 seconds. The sensors used to determine the slope of the track are the MPU6050 Y gyro sensor and rotary encoder sensor.Keyword: mobile robot, MPU6050, rotary encoder sensor, fuzzy logic controller and PID control.
Perancangan Alat Laju Penguapan (Evaporasi) Air Garam dengan pendekatan Bodyspace Orang Madura Rullie Annisa; Hanifudin Sukri; Hairil Budiarto; Rohmat Khaironi; R Daksena Abdi Putera
Rekayasa Vol 12, No 2: Oktober 2019
Publisher : Universitas Trunojoyo Madura

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (472.218 KB) | DOI: 10.21107/rekayasa.v12i2.5923

Abstract

Perancangan alat laju penguapan (evaporasi) air garam perlu memperhatikan aspek ergonomic guna kesesuaian alat dengan petani tambak sebagai pengguna. Salah satu pendekatan ergonomic yang digunakan dalam perancangan alat laju penguapan air garam yaitu metode bodyspace. Tujuan penelitian ini adalah agar perancangan alat laju penguapan sesuai dengan antropometri orang Madura berjenis kelamin pria selaku pengguna. Berdasarkan data antropometri orang Madura berjenis kelamin pria pada rentang usia 21-24 tahun, data dimensi tubuh yang digunakan terkait pendekatan bodyspace yaitu data D1,D2,D4,,D24,D25,D28,D29,D33 dan D34, dengan persentil sebesar 95%. Hasil penelitian menunjukkan dengan memperhatikan data dimensi pada D1,D2 dan D34 ketinggian alat minimum sebesar 123 cm tinggi maksimum sebesar 193 cm, data D33 panjang alat sebesar 56 cm, data D24 dan D25 lebar alat sebesar 54 cm, data D2 ketinggian LCD sebesar 81 cm, data D28,D29 panjang handle sebesar 11 cm, data D28,D29 dan D33 ukuran wadah diperoleh panjang 30 cm, lebar 30 cm dan tinggi 9 cm. Berdasarkan hasil yang diperoleh, maka diketahui bahwa perancangan alat laju penguapan perlu dibuat secara fleksibel sesuai dengan data dimensi Antropometri orang Madura sebagai penggunanya.Design of Salt Water Evaporation Tools using the Madurese BodyspaceAbstract The design of the evaporation rate for salt water needs to pay attention to ergonomic aspects for the suitability of the tool with the farmer farmer as the user. One ergonomic approach used in the design of the salt water evaporation rate tool is the bodyspace method. The purpose of this study is that the design of the evaporation rate tool is in accordance with the anthropometry of male Madurese as the user. Based on anthropometric data of male Madurese in the age range of 21-24 years, body dimension data used is related to the bodyspace approach namely data D1, D2, D4,, D24, D25, D28, D29, D33 and D34, with 95% percentile . The results showed by taking into account the dimension data on D1, D2 and D34 the minimum height of the tool is 123 cm, the maximum height is 193 cm, the D33 data is 56 cm, the D24 and D25 data is 54 cm, the D2 height is 81 cm , data D28, D29 handle length of 11 cm, data D28, D29 and D33 container size obtained length 30 cm, width 30 cm and height 9 cm. Based on the results obtained, it is known that the design of the evaporation rate tool needs to be made flexibly according to the Madurese Anthropometric dimension data as its user.Keywords: Design, salt water evaporation rate tool, ergonomics, anthropometry, bodyspace, workspace
Penerapan Sistem Kontrol Adaptif Proportional Integral Derivative (PID) pada Mesin Penimbang Mie dengan Konveyor Dafid, Ach; Umam, Faikul; Budiarto, Hairil
Rekayasa Vol 18, No 2: Agustus, 2025
Publisher : Universitas Trunojoyo Madura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21107/rekayasa.v18i2.31610

Abstract

Indonesia is the second-largest instant noodle consumer in the world after China, with consumption reaching more than 12 billion packs per year. This high demand drives the need for innovation in the production process, especially in the weighing and cutting aspects, which are still carried out manually in small and medium industries. Manual processes not only require more time and energy, but also result in variations in packaging weight that are not uniform and reduce production efficiency. This study aims to design and implement a Proportional Integral Derivative (PID) adaptive control system on a noodle weighing machine with a conveyor. The system was developed using a load cell sensor to measure the noodle dough weight, a servo motor as a cutting actuator, and a DC motor as a conveyor drive, all of which are controlled by an Arduino ATmega 2560 microcontroller. The research methodology includes mechanical design, electronic design, control system programming, sensor calibration, and performance testing. The test results show that the system is able to produce noodle portions with a target weight of 50 grams consistently. The prototype has conveyor dimensions of 100×20×8 cm with a speed of 26 cm/ms, controlled using tuned PID parameters (Kp=1.5; Ki=1; Kd=1.7). From 20 trials, the system produced an average error of 0.75% and a success rate of 99.25%. Thus, the application of the PID adaptive control system has been proven to improve weighing precision, conveyor speed stability, and production efficiency. This innovation is expected to be a simple and affordable solution to support the automation of small and medium industries in Indonesia in facing increasingly fierce food market competition.