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All Journal Indonesian Journal of Electrical Engineering and Informatics (IJEEI) JMPM (Jurnal Material dan Proses Manufaktur) Fikiran Masyarakat Prosiding Seminar Nasional Teknoka Jurnal Asiimetrik: Jurnal Ilmiah Rekayasa Dan Inovasi Metalik: Jurnal Manufaktur, Energi, Material Teknik
Delvis Agusman
Universitas Muhammadiyah Prof. Dr. HAMKA
Automotive Engineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Electrical & Electronics Engineering Energy Engineering Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Other

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Studi Eksperimentasi Posisi Pendingin Termoelektrik pada Kotak Pendingin terhadap Kinerja Sistem Pendingin bertenaga Panel Surya Rifky; Eki Hadi Setiawan; Delvis Agusman; Mohammad Mujirudin; Arry Avorizano
METALIK : Jurnal Manufaktur, Energi, Material Teknik Vol. 4 No. 2 (2025): Metalik: Jurnal Manufaktur, Energi, Material Teknik
Publisher : Universitas Muhammadiyah PROF. DR. HAMKA Fakultas Teknik – Program Studi Teknik Mesin

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22236/metalik.v4i2.21140

Abstract

Solar cells are a powerful technology to convert solar energy into electrical energy directly, while thermoelectrics can convert electrical energy (potential difference) into heat energy (temperature difference). The combined solar cell and thermoelectric system is used as an air conditioner. The research was conducted by making a cooling system in the form of a cooling box with a cooling source on the roof side and wall side. The cooling source in this study is a thermoelectric cooling system consisting of a series of thermoelectric modules. The purpose of this study is to find that the position of the TEC affects the cooling results in the cooling box and determine the lowest temperature and performance of the cooling system in the cooling box. The method used is an experimental method with the model is a cooler box with cooler box dimensions: 520mm x 370mm x 440mm. Solar cells as electrical energy suppliers are placed in the presence of sunlight throughout the day and the output power from solar cells is distributed to the thermoelectric cooling system in series. so that thermal energy changes take place on its sides. The cold side of the thermoelectric will absorb heat from inside the cooling box, while the hot side of the thermoelectric will release heat to the environment outside the cooling box. The results showed that the positioning of the thermoelectric cooler on the roof side and the wall side of the cooler box affected the heat transfer and temperature achievement in the center of the cooler box. The average center room temperature achieved by the cooler on the roof side is 23.70 ℃ and 24.75 ℃ on the wall side. While the coefficient of performance of the cooling system in the cooler box with thermoelectric cooler on the roof side amounted to 2.17 and in the thermoelectric cooler on the wall side amounted to 1.8.
Analisis Laju Korosi Baja AISI 1040 Pada Bagian Daun Kemudi Perahu Nelayan Tradisional: Pendahuluan, Ahmad Pauzi; Agus Fikri; Delvis Agusman; Mohammad Mujirudin; Arry Avorizano
METALIK : Jurnal Manufaktur, Energi, Material Teknik Vol. 5 No. 1 (2026): Metalik: Jurnal Manufaktur, Energi, Material Teknik
Publisher : Universitas Muhammadiyah PROF. DR. HAMKA Fakultas Teknik – Program Studi Teknik Mesin

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22236/metalik.v5i1.23263

Abstract

Abstract The ship's part that plays an important role in controlling the direction of the ship is the rudder, where the rudder has a shaft and rudder blade. The significant threat of corrosion encourages the development of various ways to protect against potential damage. In order to extend the service life of the product, it is necessary to choose the right material and coating. The purpose of this study was to determine the corrosion rate of AISI 1040 steel material with paint, chrome and uncoated coatings with varying immersion times using experimental methods. After corrosion testing, it was found that uncoated steel had the highest corrosion rate of 16.0343 mmpy, the highest corrosion rate with coating in steel occurred in the paint coating of 0.7792 mmpy, while the lowest corrosion rate occurred in steel with chrome coating of 0.1716 mmpy. Based on the results of this study, it can be seen that AISI 1040 steel must be coated in order to reduce the rate of corrosion that occurs. The corrosion that occurs in uncoated steel specimens is uniform corrosion, and with paint and chrome coatings is pitting corrosion. Keywords: rudder, corrosion rate, chrome plating
Co-Authors Agus Fikri Ahmad Pauzi Anggi Pratama Arif Putra Pratama Avicenna Avicenna Avorizano, Arry Bambang Riyanta Danu Darma Wijaya E Erizal Eki Hadi Setiawan Erry Yulian Triblas Adesta Faris Setio Wibowo Hafiz Sholahudin Harry Ramza Mohammad Mujirudin Mohammad Yusuf Djeli Muhammad Budi Nur Rahman Nesa Amelia Wati Oktarina Heriyani Pancatatva Hesti Gunawan R. Mohammad Alansyah Mauludi Rifky, Rifky Riyan Ariyansah Rizqi Naufal Aprianto Rosalina Sadriman Sadriman Salsabila Salsabila Saryanto, Hendi Victor Indra Wijaya