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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.