Article Per Year (5 Year)
p-Index From 2021 - 2026
0.444
P-Index
This Author published in this journals
All Journal KAPAL Jurnal Ilmu Pengetahuan dan Teknologi Kelautan Prosiding SNTTM
Waskito, Kurniawan Teguh
Unknown Affiliation
Aerospace Engineering Agriculture, Biological Sciences & Forestry Chemical Engineering, Chemistry & Bioengineering Earth & Planetary Sciences Engineering Industrial & Manufacturing Engineering

Published : 2 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 2 Documents
Search

 1 
Evaluating Wave Potential and Assessing the Economic Viability of Wave Energy Converters in the South Java Seas Waskito, Kurniawan Teguh; Yudho, Renaldi H; Yanuar, Yanuar; Rahardjo, Gema P
Kapal: Jurnal Ilmu Pengetahuan dan Teknologi Kelautan Vol 20, No 3 (2023): October
Publisher : Department of Naval Architecture - Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/kapal.v20i3.60005

Abstract

As an archipelagic nation, Indonesia holds substantial potential for wave energy as a renewable resource. Certain coastlines of islands facing the Indian Ocean, particularly in the western and southern regions, exhibit significant wave energy throughout the year. To identify suitable locations for Wave Energy Converter (WEC) installation, it is essential to assess wave hindcast data. This study utilizes NOAA and ERA5 reanalysis wave data to analyze wave characteristics in Indonesia from 2008 to 2018. Data processing with Ocean Data View is employed to estimate key wave parameters at various locations, including significant wave height, mean wave period, and mean wave direction. Two locations in the South Java seas were identified for WEC installation based on this research. The average values for the period 2008 to 2018 indicate a significant wave height of around 2m, with a maximum height of 5m, a wave period of 10–14s, and a wave direction of 195–210 degrees. Notably, NOAA data suggests a higher estimation of significant wave height compared to ERA5 data. The average annual wave power potential based on ERA5 and NOAA is 164.43 MW/m and 252.15 MW/m, respectively. Furthermore, this study incorporates an economic simulation for the construction of a multi-point absorber WEC. The objective is to offer insights into the Levelized Cost of Electricity (LCOE) and compare it with other WEC technologies. Assuming a WEC capacity of 130 kW, the total construction cost is estimated at $2,093,725, resulting in a Levelized Cost of Energy (LCOE) of $91/MWh.
Analisis hambatan kapal bulk carrier skala model dan skala penuh menggunakan simulasi CFD dan formula empiris Waskito, Kurniawan Teguh
Prosiding SNTTM Vol 23 No 1 (2025): SNTTM XXIII October 2025
Publisher : BKS-TM Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.71452/5fkat551

Abstract

Penelitian ini mengkaji analisis hambatan kapal bulk carrier pada skala model dan skala penuh menggunakan simulasi CFD NUMECA Fine/Marine dan formula empiris metode Holtrop-Mennen. Penelitian bertujuan untuk membandingkan perbedaan hambatan antara hasil simulasi CFD dan perhitungan metode Holtrop-Mennen sebagai validasi, serta menganalisis nilai koreksi (ΔCF) untuk skala model dan skala penuh guna mendukung ekstrapolasi nilai hambatan pada ukuran kapal tertentu. Hasil dari kedua metode menunjukkan peningkatan gaya yang signifikan seiring bertambahnya skala kapal, dengan tingkat kesalahan antara 1,72% hingga 13,30%, menunjukkan tidak adanya perbedaan signifikan antara kedua metode. Nilai koreksi (ΔCF) yang lebih besar pada kapal berukuran kecil mengindikasikan bahwa simulasi skala model memerlukan penyesuaian lebih besar untuk akurasi pada skala penuh dibandingkan kapal berukuran besar. Penelitian ini menghasilkan persamaan ekstrapolasi untuk prediksi hambatan, yang meningkatkan efisiensi operasional dan estimasi konsumsi bahan bakar dalam desain kapal. Namun, keterbatasan meliputi kebutuhan validasi lebih lanjut dengan uji towing dan peningkatan jumlah meshing untuk kapal skala besar. Penelitian ini berkontribusi pada peningkatan akurasi prediksi hambatan kapal, mendukung desain kapal yang optimal dan efisiensi biaya operasional, khususnya untuk kapal bulk carrier.
Co-Authors Rahardjo, Gema P Yanuar Yanuar, Yanuar Yudho, Renaldi H