Experimental Study of a Wave Energy Converter Using a Unidirectional Cascaded Gear System in a Short-Wave Period

A wave energy converter (WEC) based on a direct mechanical drive system (DMDS) exhibits limited performance when the sea state stands for a short period. This study aims to increase the efficiency of a WEC-DMDS mechanical system applied under short-wave conditions. A novel WEC is designed by app...

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Main Authors: Rizki Mendung Ariefianto, Yoyok Setyo Hadiwidodo, Shade Rahmawati
Format: Article
Language:English
Published: Universitas Indonesia 2022-04-01
Series:International Journal of Technology
Subjects:
Online Access:https://ijtech.eng.ui.ac.id/article/view/5071
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author Rizki Mendung Ariefianto
Yoyok Setyo Hadiwidodo
Shade Rahmawati
author_facet Rizki Mendung Ariefianto
Yoyok Setyo Hadiwidodo
Shade Rahmawati
author_sort Rizki Mendung Ariefianto
collection DOAJ
description A wave energy converter (WEC) based on a direct mechanical drive system (DMDS) exhibits limited performance when the sea state stands for a short period. This study aims to increase the efficiency of a WEC-DMDS mechanical system applied under short-wave conditions. A novel WEC is designed by applying cascaded gear and reducing the flywheel inertia to achieve better efficiency in a short-wave period. By applying a short-wave period of less than 2.84 s for the actual scale, the UCG-WEC can produce a CWR of 18.5%, mechanical efficiency of 87%, and a maximum power of 200 W. These values are much better than those obtained previously, where zero efficiencies were achieved for the same wave period range. In addition, this model performs well under both high-and low-wave steepness conditions. This study also evaluates variations in lever length and effective height. The C-type configuration, with a relative length ratio of 0.74, is found to be the optimal choice.
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spelling doaj.art-074ad4c8e5804d9b9bab6aab3d4d30952023-01-02T21:47:43ZengUniversitas IndonesiaInternational Journal of Technology2086-96142087-21002022-04-0113232133110.14716/ijtech.v13i2.50715071Experimental Study of a Wave Energy Converter Using a Unidirectional Cascaded Gear System in a Short-Wave PeriodRizki Mendung Ariefianto0Yoyok Setyo Hadiwidodo1Shade Rahmawati2Department of Ocean Engineering, Faculty of Marine Technology, Institut Teknologi Sepuluh Nopember, Surabaya 60111, IndonesiaDepartment of Ocean Engineering, Faculty of Marine Technology, Institut Teknologi Sepuluh Nopember, Surabaya 60111, IndonesiaDepartment of Ocean Engineering, Faculty of Marine Technology, Institut Teknologi Sepuluh Nopember, Surabaya 60111, IndonesiaA wave energy converter (WEC) based on a direct mechanical drive system (DMDS) exhibits limited performance when the sea state stands for a short period. This study aims to increase the efficiency of a WEC-DMDS mechanical system applied under short-wave conditions. A novel WEC is designed by applying cascaded gear and reducing the flywheel inertia to achieve better efficiency in a short-wave period. By applying a short-wave period of less than 2.84 s for the actual scale, the UCG-WEC can produce a CWR of 18.5%, mechanical efficiency of 87%, and a maximum power of 200 W. These values are much better than those obtained previously, where zero efficiencies were achieved for the same wave period range. In addition, this model performs well under both high-and low-wave steepness conditions. This study also evaluates variations in lever length and effective height. The C-type configuration, with a relative length ratio of 0.74, is found to be the optimal choice.https://ijtech.eng.ui.ac.id/article/view/5071direct mechanical drive systemefficiencyshort-wave perioducg-wecwave energy
spellingShingle Rizki Mendung Ariefianto
Yoyok Setyo Hadiwidodo
Shade Rahmawati
Experimental Study of a Wave Energy Converter Using a Unidirectional Cascaded Gear System in a Short-Wave Period
International Journal of Technology
direct mechanical drive system
efficiency
short-wave period
ucg-wec
wave energy
title Experimental Study of a Wave Energy Converter Using a Unidirectional Cascaded Gear System in a Short-Wave Period
title_full Experimental Study of a Wave Energy Converter Using a Unidirectional Cascaded Gear System in a Short-Wave Period
title_fullStr Experimental Study of a Wave Energy Converter Using a Unidirectional Cascaded Gear System in a Short-Wave Period
title_full_unstemmed Experimental Study of a Wave Energy Converter Using a Unidirectional Cascaded Gear System in a Short-Wave Period
title_short Experimental Study of a Wave Energy Converter Using a Unidirectional Cascaded Gear System in a Short-Wave Period
title_sort experimental study of a wave energy converter using a unidirectional cascaded gear system in a short wave period
topic direct mechanical drive system
efficiency
short-wave period
ucg-wec
wave energy
url https://ijtech.eng.ui.ac.id/article/view/5071
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AT yoyoksetyohadiwidodo experimentalstudyofawaveenergyconverterusingaunidirectionalcascadedgearsysteminashortwaveperiod
AT shaderahmawati experimentalstudyofawaveenergyconverterusingaunidirectionalcascadedgearsysteminashortwaveperiod