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INDONESIA
KAPAL Jurnal Ilmu Pengetahuan dan Teknologi Kelautan
Published by Universitas Diponegoro
ISSN : 18298370     EISSN : 23019069     DOI : 10.14710/kapal.
Core Subject : Science,
Earth & Planetary Sciences
Jurnal ini merupakan Jurnal Ilmiah untuk mengembangkan ilmu dibidang Ilmu Pengetahuan & Teknologi Kelautan. Jurnal ini diterbitkan oleh Teknik Perkapalan Universitas Diponegoro 3 (tiga) kali dalam 1 tahun pada bulan Februari, Juni dan Oktober.
Arjuna Subject : -
Articles 12 Documents
 1   2 
Search results for , issue "Vol 20, No 2 (2023): June" : 12 Documents clear
Numerical Investigation on The Open Water Characteristics of B-Series Propeller Andik Machfudin; A.A.B. Dinariyana; Dian Purnama Sari
Kapal: Jurnal Ilmu Pengetahuan dan Teknologi Kelautan Vol 20, No 2 (2023): June
Publisher : Department of Naval Architecture - Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/kapal.v20i2.54507

Abstract

Computer fluid dynamics (CFD) has been increasingly popular in the present day attributable to the reasonably accurate results, time and money savings, and ease of use for calculating the open water characteristics of the propeller. This paper presents the results of a computational evaluation of propeller open water characteristics based on various advanced velocities and advanced coefficients. KT, KQ, and ƞ are verified to get optimal performance study results. Research on mesh convergence is conducted with an advance coefficient of J = 0.6 with investigate three meshes coarse, medium, and fine.  The impacts of mesh density and mesh production are examined for the purpose of increasing the accuracy of the numerical findings. The B-series propeller is used to verify and validate the accuracy of case studies. Obtained results show that the CFD result is well in agreement with the experimental result.
Design, Construction And Operational Plans Of An Electric Paddle Wheel For A Laminated Bamboo Slats River Cruise Boat Heri Supomo; Eko Budi Djatmiko; Setyo Nugroho; Wikaranosa Scotiandharu Supomo
Kapal: Jurnal Ilmu Pengetahuan dan Teknologi Kelautan Vol 20, No 2 (2023): June
Publisher : Department of Naval Architecture - Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/kapal.v20i2.50503

Abstract

River cruise tourism in Indonesia has a moderately high potential as there are so many rivers in Indonesia that offer beautiful natural and urban views. However, majority of river cruiser boats still use outboard engines, both two-stroke and four-stroke combustion engines. The working system of the outboard engine is to carry out the combustion process of the fuel oil. This combustion process usually has a loud sound, leading to noise pollutants that can harm the environment and make passengers uncomfortable. Burning fossil fuels also causes the residual compounds that increases environmental pollution, especially carbon emissions. In this paper, an analysis will be carried out on the operational costs of a river cruise ship with electric paddle wheel propulsion. With a boat design with an LOA size of 5.4 m, breadth of 1.4 m, height of 0.8 m, draft of 0.3 m, and CB of 0.68, the paddle wheel diameter is 70 cm, blade width of 30cm, and 6 blades. The motor used to drive the paddle wheel has a power of 672.69 watts, with a battery capacity of 100 Ah. According to operational planning, benefits will be obtained, including zero carbon emissions, no noise and operational benefits can be up to 90% greater when compared to the out-board engine drive.

Page 2 of 2 | Total Record : 12

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