Open Journal of Optimization, 2019, 8, 47-58
http://www.scirp.org/journal/ojop
ISSN Online: 2325-7091
ISSN Print: 2325-7105
DOI: 10.4236/ojop.2019.81005 Mar. 21, 2019 47 Open Journal of Optimization
Energy Extraction from Low Height Sea Wave in
Sarawak near Shore Region
Man Djun Lee
*
, Heng Jong Ngu, Dennis Ting Yuk Shin
School of Engineering and Technology, University College of Technology Sarawak, Jalan Universiti, Sibu, Malaysia
Abstract
Generating electricity from wave is predicted to be a new source of renewable
energy conversion gaining more attention and is considered in various
countries as promising renewable resource. Being surrounded by sea, Malaysia
has the advantage of tapping energy from the nearest sea wave. However,
Malaysia has low wave climate compared to other regions. On top of that, the
technologies available for extracting this energy are still in infancy stage. This
study explored the potential of generating electricity from low height wave
energy. The recorded average electricity can be generated from the lab scale
device which is 0.224 V, 0.175 A and 0.039 W. The data collected from Mu-
kah Beach show that the maximum voltage recorded is 1.021 V, maximum
current of 0.86 A and highest power of 0.878 W. By comparing results from
both locations, the difference is almost 10-fold which validates the wave
maker built in laboratory with 1:10 ratio. The standard deviation of all the
outputs is small which indicates that the output generation from low height
wave would be consistent. Although the output is small, it could be paired
together to make a larger system to generate higher output. This study
concludes that the developed lab scale model is useful for harnessing electrical
energy from sea wave. The future direction of research would be to optimize
the current method to maximize energy capture from sea wave. Another
direction for future study is to make a system comprised of a large number of
such devices to generate higher output.
Keywords
Wave Energy, Point Absorber, Low Wave Height, Renewable Energy
1. Introduction
Wave energy power is abundant, has lower enviromental impacts and is more
How to cite this paper: Lee, M.D., Ngu,
H.J. and Shin, D.T.Y. (2019) Energy Ex-
traction from Low Height Sea Wave in
Sarawak near Shore Region. Open Journal
of Optimization, 8, 47-58.
https://doi.org/10.4236/ojop.2019.81005
Received: January 29, 2019
Accepted: March 18, 2019
Published: March 21, 2019
Copyright © 2019 by author(s) and
Scientific Research Publishing Inc.
This work is licensed under the Creative
Commons Attribution International
License (CC BY 4.0).
http://creativecommons.org/licenses/by/4.0/
Open Access