ELECTRIC OUTBOARD PERFORMANCE ANALYSIS USING PROPELLER VARIATIONS BASED ON EXPERIMENT

Sima, yonathan iwangsa (2021) ELECTRIC OUTBOARD PERFORMANCE ANALYSIS USING PROPELLER VARIATIONS BASED ON EXPERIMENT. Other thesis, Institut Teknologi Sepuluh Nopember Surabaya.

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Abstract

The demand for electric vehicles including electric outboard motors, is on the rise due to growing environmental concerns. To optimize the performance of electric outboards,
propeller selection particularly propeller pitch, is crucial. This study experimentally evaluated the impact of varying propeller size 7,8 x (8, 9, and 12) inch on the performance of an electric outboard motor. Through both laboratory and direct field tests, measurements of water flow velocity and ∆ v as proxies for thrust, energy consumption, boat speed, and vibration levels were conducted. The objective was to identify the optimal propeller pitch that maximizes propulsive efficiency, minimizes energy consumption, an operational cost at the real condition. Results indicated that an electric outboard using propeller pitch of 8, produced the highest water flow velocity and ∆ v, implying the greatest thrust also the change of fluid momentum. At the direct field tests using real boat corroborated these findings, with the 8-pitch achieving an average speed of 10 km/h and a roundtrip time of 3.48 minutes. The 8 pitch also exhibited the highest energy consumption at 0.31366 kWh only for laboratory testing. However, at the instalment on real patrol boat electric outboard generates the optimum operational cost. This can be happened due to 8 pitch generates highest speed at the same endurance of battery in every treatment, that’s influenced the distance that can be travel automatically longer than the other propeller pitch. So, the operational cost is lowest directly proportional with the performance. For the vibration levels were minimal across all pitches only 0,3 and 0,4, suggesting no structural damage based on ISO 8503-1. These findings hold significant implications for the selection of electric propulsion systems in small vessels, especially for patrol boats.

Item Type:	Thesis (Other)
Uncontrolled Keywords:	Electric outboard, Experiment based, Performance, Propeller Pitch ======================================================================================================================= Berbasis eksperimen, Mesin tempel listrik, Performa, Pitch baling-baling
Subjects:	T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK2681.O85 Electric motors, Brushless. T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK2681.B47 Electric motors, Direct current. T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK4055 Electric motor V Naval Science > VM Naval architecture. Shipbuilding. Marine engineering > VM753 Propellers V Naval Science > VM Naval architecture. Shipbuilding. Marine engineering > VM773 Ship propulsion, Electric
Divisions:	Faculty of Marine Technology (MARTECH) > Marine Engineering > 36202-(S1) Undergraduate Thesis
Depositing User:	Yonathan Iwangsa Sima
Date Deposited:	06 Aug 2024 01:31
Last Modified:	25 Sep 2024 03:07
URI:	http://repository.its.ac.id/id/eprint/113881

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