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Prototipe Perahu Listrik: Pengaruh Ukuran Propeller Terhadap Resistance dan Power Pada Software Maxsurf Resistance Ahmad Ilham Ramadhani; Dwi Dharma Arta Kusuma; Andie Murtono; Ahmad Tubagus Tsani Risqi Aji
Zona Laut : Jurnal Inovasi Sains Dan Teknologi Kelautan Volume 4, Nomor 3, Edisi November 2023
Publisher : Departemen Teknik Kelautan Universitas Hasanuddin

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62012/zl.v4i3.30775

Abstract

The boat model as a prototype of an electric boat has been successfully modeled and simulated using Maxsurf software. The research aims to determine the resistance and power values of the boat when operating using the Holtrop method. The Pakura boat was modeled using a Maxsurf modeler and simulated using Maxsurf resistance. Based on the modeling results, it shows that the boat model corresponds to the main dimensions in real conditions. The Pakura boat model has a displacement of 320.5 kg, amidship and immersed draft of 0.25 m, and a wetted area of 2.94 m2. The resistance and power are calculated using the resistance and power holotrop methods. Based on the simulation results, we obtained a prototype model of an electric boat that can operate on a certain propeller size. The maximum speed of the electric boat prototype with a 7-inch propeller is 4.31 kn. At 1500 rpm, the boat receives an HR of 92.71 N and requires a power of 205.57 W. On an 8-inch propeller that is 4.82 kN. At 1500 rpm, the boat receives an HR of 121.83 N and requires a power of 302.08 W. The size of the propeller affects the resistance value and power of the boat. The resistance value of the boat and operating power requirements increase along with changes in rpm on the electric engine. This can be used as a reference in determining the propulsion components for an electric boat prototype.
Evaluation Prototype of B30 Diesel Fuel Heater Using Arduino Parabelem Tino Dolf Rompas; Metsi Daud; Ahmad Tubagus Tsani Risqi Aji; Barokah; Dwi Dharma Arta Kusuma; Ahmad Ilham Ramadhani
International Journal of Marine Engineering Innovation and Research Vol. 9 No. 4 (2024)
Publisher : Department of Marine Engineering, Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j25481479.v9i4.4834

Abstract

Utilizing B30 as diesel fuel has the advantage of being heated to a specific temperature. Manually setting the temperature during the heating and fuel-filling process in the heating tank causes fuel performance to become less effective and efficient. This research aims to evaluate the capability of the prototype as a B30 fuel heater. The research method was carried out experimentally by testing variables for the temperature sensor (DS28B20), distance sensor (VL53LOX), heater control system, fuel filling system, and performance of the B30 diesel fuel heater prototype on a 7 HP single-cylinder diesel engine. The research results show that the fuel heater prototype can regulate the desired temperature and fill the heating tank automatically. The fuel temperature tested starts from 280C to 650C with an average multiple of 50C and tolerances of +20C and -10C. At the same time, it can automatically fill fuel from the main tank to the heating tank set from 800 ml to 1200 ml. B30 performance on a 7 HP single-cylinder diesel engine with 100 ml of fuel heated at 280C - 650C each shows the longest fuel consumption time at 350C and the fastest at 450C.