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All Journal J-Proteksion: Jurnal Kajian Ilmiah dan Teknologi Teknik Mesin Walisongo Journal of Information Technology Journal of Railway Transportation and Technology
Ahmad Arbi Trihatmojo
Akademi Komunitas Negeri Pacitan
Automotive Engineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Transportation

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Simulasi dan Validasi Panel Surya dengan Kolektor Pemanas Udara: Studi Pengaruh Jarak Lapisan Tedlar dan Insulation Panel Mega Lazuardi Umar; Rochmad Eko Prasetyaning Utomo; I Gusti Ngurah Agung Satria Prasetya Dharma Yudha; Ahmad Arbi Trihatmojo; Rizqi Ilmal Yaqin; Agung Fauzi Hanafi
J-Proteksion Vol 7, No 2 (2023): J-Proteksion
Publisher : Universitas Muhammadiyah Jember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32528/jp.v7i2.9165

Abstract

Ide dari penelitian ini adalah memanfaatkan energi panas yang terbuang dari panel surya dengan cara menambahkan kolektor panas yang diletakkan di bawah panel surya, sehingga tercapai dua jenis energi yang keluar dari panel surya yaitu listrik dan panas. Untuk mencapai efisiensi dan luaran yang optimal, tentu saja dibutuhkan sistem konfigurasi panel surya dengan kolektor panas yang optimal, salah satu caranya adalah dengan memodifikasi jarak antara lapisan tedlar dan insulation panel. Penelitian ini fokus melakukan simulasi dengan bantuan software matlab/Simulink dan validasi eksperimen terkait pengaruh gap terhadap efisiensi dan energi luaran dari panel surya. Hasil validasi menunjukkan nilai galat yang baik dan berdasarkan perhitungan primary energy efisiensi tertinggi, jarak lapisan tedlar dan insulation panel terbaik adalah 1 cm.
Performance and Combustion Process of a Dual Fuel Diesel Engine Operating with CNG-Palm Oil Biodiesel Ahmad Arbi Trihatmojo; Bambang Sudarmanta; Oki Muraza
Journal of Railway Transportation and Technology Vol. 2 No. 1 (2023): March
Publisher : Politeknik Perkeretaapian Indonesia Madiun

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37367/jrtt.v2i1.22

Abstract

Efforts to build and develop a low-emission transportation system have been carried out, one of which is by applying biodiesel and gas to dual-fuel diesel engines. Biodiesel is an oxygenated, low-sulfur, and high flash point alternative diesel fuel. In the dual fuel mode, CNG is used as a substitute fuel and palm biodiesel as a combustion pilot which is injected directly into the combustion chamber at 13 °CA BTDC. CNG injection timing was 110 °CA ATDC and the CNG injection duration was gradually increased. Performance and combustion processes in single-fuel mode and dual-fuel mode are compared. The engine was kept at a constant speed of 2000 rpm at all load conditions. The results show that the dual fuel mode at low and medium loads produces in-cylinder pressure and the heat release rate is lower than the single fuel mode, but at high loads, it produces in-cylinder pressure and the heat release rate is 5.14% greater. CO and HC emissions produced by the dual fuel mode are higher than the single fuel mode at all loads. conversely, the dual-fuel mode produces 95.58% lower smoke emissions than the single-fuel mode at all loads.
ELDOC - Design of Electric Dolly Camera for Video Recording Using the Omni-Direction Wheel Gramandha Wega Intyanto; Ahmad Arbi Trihatmojo; Dwi Ariani Finda Yuniarti; Anggara Trisna Nugraha
Walisongo Journal of Information Technology Vol 5, No 1 (2023)
Publisher : Universitas Islam Negeri Walisongo Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21580/wjit.2023.5.1.16463

Abstract

The dolly camera has function as a regulator of camera movement in making video productions such as films. The movement system on the dolly camera uses the thrust of humans and the running track rail for its movement. The process of preparing the dolly camera also requires a long process, such as assembling the dolly camera and then installing the track, etc. In this case study, we conducted research that designed an electric vehicle to carry a camera but with a simple way of working such as moving without rails and can be controlled with a mobile android. We named this robot vehicle ELDOC: Electric Dolly Camera which uses a four Omni-direction wheels system in the flexibility of direction and motion for taking videos and pictures. Contributions to the design of ELDOC in addition to the multimedia/cinematography field can also be used in the medical field as a monitoring tool for patient activities in isolation or ICU room with a mobile android from different rooms. In the results of the process running on the motor, we take error data from the calculation speed and measurement speed, wherein the duty circle is 19.60%, 38.50%, 58.8%, 78.66%, and the average error is 0,08. The stability level of the ELDOC when carrying the camera is stable but has vibrations or oscillations. The results of the data orientation (gyroscope) show the total average of the three samples Y (Roll) orientation is 0.6°/s and X (Pitch) orientation is 0.18°/s.
Co-Authors Anggara Trisna Nugraha Bambang Sudarmanta Dwi Ariani Finda Yuniarti Hanafi, Agung Fauzi I Gusti Ngurah Agung Satria Prasetya Dharma Yudha Mega Lazuardi Umar Oki Muraza Rizqi Ilmal Yaqin Rochmad Eko Prasetyaning Utomo