Article Per Year (5 Year)
p-Index From 2021 - 2026
0.444
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This Author published in this journals
All Journal IJOCE (International Journal of Offshore and Coastal Engineering) International Journal of Marine Engineering Innovation and Research
Dendy Satrio
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Automotive Engineering Control & Systems Engineering Decision Sciences, Operations Research & Management Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Physics Transportation

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The Analysis of Coastal Society Vulnerabilities Against the Spread of Covid-19 in Surabaya Using the Analytical Hierarchy Process (AHP) Hasan Ikhwani; Dendy Satrio; Widdi Umari; Sujantoko Sujantoko; Yoyok Setyo Hadiwidodo; Muhammad Rizky Syarifudin
International Journal of Marine Engineering Innovation and Research Vol 7, No 4 (2022)
Publisher : Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j25481479.v7i4.14675

Abstract

Coronavirus belongs to the ARI (Acute Respiratory Infection) disease, which has a high level of mortality risk. In 2019, this virus was transformed into Covid-19 with a rapid spread and a more massive impact. This disease has become a worldwide pandemic. Indonesia is a developing country and is included as one of the most densely populated countries affected by the Covid-19 pandemic, which has great potential to fail in overcoming this problem. Approximately 60% of Indonesia's population lives in coastal areas with low levels of welfare in almost all sectors of life such as social, economic, education, and health. This study aims to analyze the level of community vulnerability in the coastal area of Surabaya City by using the Analytical Hierarchy Process method. From the data taken by the survey, the results of the exposure of the Bulak Banteng Village area of Surabaya in the health, socio-cultural, economic, and general fields are 0.0469, 0.0871, 0.1809, and 0.3551, respectively. So the overall vulnerability is 0.67, which is included in the medium vulnerability criteria.
Replace Experimental and Numerical Study on Ocean Current Turbine Performance with Innovative Idea Using Toroidal Propeller Dendy Satrio; Mohammad Fahrur Riza Al Azizy; Deva Ery Aditya Putra; Sandi Jagat Pasma; Dio Alif Wahyudo; Zaidan Arsa Sulthana
International Journal of Offshore and Coastal Engineering Vol. 9 No. 1 (2025)
Publisher : Department of Ocean Engineering

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j225800914.v9i1.4505

Abstract

According to the HEESI, the share of renewable energy production is only 13.29% of the total energy production, with a target of 23% by 2025. One promising renewable energy source with a potential of 41 GW is ocean currents. To harness this potential, propeller turbines can be used. Propellers are a critical component of these turbines, typically designed based on the Wageningen B series. However, this series still exhibits issues such as cavitation and noise during operation. Toroidal propellers offer advantages by eliminating tip vortices, resulting in quieter operation, and reduced fatigue. This study aims to enhance the efficiency of propeller turbines through modifications using toroidal propellers. The study employs ANSYS Fluent for simulation and experiments. The process includes designing toroidal propellers with a maximum diameter of 3 meters, blade pitch angles of 60°, and blade counts ranging from 3 to 9. These designs are then simulated to analyze power and efficiency. Performance testing will measure RPM, and observe cavitation. The results are for blades ranging from 3 to 9 generates 42.6 to 63.2 kW. Therefore the best design is 9 blades that generate 63.7 kW of power with a maximum RPM of 89.9.
Co-Authors Deva Ery Aditya Putra Dio Alif Wahyudo Hasan Ikhwani Mohammad Fahrur Riza Al Azizy Muhammad Rizky Syarifudin Sandi Jagat Pasma Sujantoko Sujantoko Widdi Umari Yoyok Setyo Hadiwidodo Zaidan Arsa Sulthana