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European Journal of Applied Sciences – Vol. 11, No. 3
Publication Date: June 25, 2023
DOI:10.14738/aivp.113.14613.
Moniruzzaman, M. (2023). Wave Energy: Boats on Waves Can Be a Source of Clean Energy. European Journal of Applied Sciences,
Vol - 11(3). 98-101.
Services for Science and Education – United Kingdom
Wave Energy: Boats on Waves Can Be a Source of Clean Energy
Md. Moniruzzaman
Power Grid Company of Bangladesh Ltd., Bangladesh
ABSTRACT
The energy of ocean waves across a large part of the earth is inexhaustible. The
whole world will benefit if this endless energy can be used in an easy way. The
coastal countries will easily be able to meet their own energy needs. The purpose of
this article is to use the infinite energy of the ocean wave in a simple way, i.e., a
method of efficient use of wave energy. The paper starts by discussing specifically
about pitch motion of a boat caused by waves. Afterward with a graphical
presentation discussed about the method of using the force from pitch-movement
of the boat. Finally, the conclusion states the possibilities, disadvantages and
advantages.
Keywords: Boat, Clean energy, Hydro power, Pump, Swing weight, Wave energy.
INTRODUCTION
The force which is comes from Boat's pitch motion, is very suitable for water pumping. By
placing a swing weight on the boat, it is possible to get that force. Yes, we can pump water by
using the forces from boat’s pitch motion caused by the wave energy. This is the easiest
technique to harness energy from ocean (/ river) waves. This nonstop pump can provide
sufficient water for irrigation and for hydro power-station. There is also no problem for the
conversion of big and or small size of waves. That is, smaller waves will pump less water and
larger waves will pump more water.
The pitch movements of the ships those are shows in figure-1 can be very reliable to use.
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Moniruzzaman, M. (2023). Wave Energy: Boats on Waves Can Be a Source of Clean Energy. European Journal of Applied Sciences, Vol - 11(3). 98-
101.
URL: http://dx.doi.org/10.14738/aivp.113.14613.
DESCRIPTION
Golden values blue force which is comes from Boat's pitch motion, is suitable to water pumping.
By placing a swing weight on the boat, it is possible to get that force. Graphical presentations of
the motion of the swing weight at four different positions of the boat in the pitch movement are
as shows in figures 2 to 5.
By installing pumps and swing weight inside the boat, using the bidirectional force from
swing weight due to pitch motion of the boat on waves, continuously sufficient water
pumping is possible for hydropower station and or desalination/irrigation, as shown in
figures 6 and 7.
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Services for Science and Education – United Kingdom 100
European Journal of Applied Sciences (EJAS) Vol. 11, Issue 3, June-2023
Figure.6: The vertical force of tidal waves is pumping water to the reservoir.
Figure.7: Some anchored big boat/ships can provide electricity and water demand for a big city.
CONCLUSION
We don't have time for wait to switch clean energy economy, and we have unlimited source
of energy [ocean wave], taking consideration those issues the paper shows huge
potentiality.
Finally, from all the above we can conclude that by using pitch motion of a boat we can easily
pump water continuously to the upstream reservoir of hydro power station. We may get
little amount of water from a pump but we can use many swings weight and pump in a big
boat and we can use lots of boats. It is not calculated yet but I think, five big sizes boats is
enough to provide sufficient water for a hundred megawatt hydro power station.
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Moniruzzaman, M. (2023). Wave Energy: Boats on Waves Can Be a Source of Clean Energy. European Journal of Applied Sciences, Vol - 11(3). 98-
101.
URL: http://dx.doi.org/10.14738/aivp.113.14613.
The Earth is a watery place. About 71% of the Earth's surface is water-covered, and the
oceans hold about 96.5% of all Earth's water. Considering the open space available in the
ocean, we can easily install the required numbers of boats to the conversion of energy from
the big waves to achieve 100% renewable energy.
Disadvantages
• Peoples involved for the devices in the boat increases the chance of ocean pollution.
• Pumps operating in boats may disturb the marine lives lots.
Advantages
• Zero emission-based wave energy harvesting idea.
• Here it is possible to be a zero-pollution based wave energy harvesting.
• It can provide Low-cost renewable energy.
• Natural disasters are predictable so Very safe.
• Average invests and very low production cost makes it Economic.
• Easy technology-based solution, any engineering firm can implement this.
• Very easy technology and available unlimited wave energy makes it Reliable.
• Waves are unlimited.
• No problem with the conversion of the unsymmetrical wave also. i.e., small waves
pump less water, big waves pump more water.
• By using rejected ships, it is possible to reduce the investment.
• Ships/boats can form the ship/boat city.
• For this simple pumping operation, it is easy to design pumps for waves of all sizes.
• The pump will work continuously as the waves are, so there is no need the large
reservoirs for hydropower plants or for desalination.
• Sufficient surface water can avoid the lifting of underground water.
Acknowledgment
I want to give my special thanks to Google for helping me find the information I needed. I
am really grateful to marine energy/shipping companies because of my requirements, here
I use their ships pictures.
References
Nil