Design And Study Of Spinning Sea Wave Point Absorber
The point absorber is a type of Wave Energy Converter (WEC) that is used to harness wave energy and convert it into useful electrical energy. It consists of a buoy, which acts as the primary converter the process of energy conversion. The waves drive the buoy and the wave energy absorbed by th...
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| Format: | Monograph |
| Language: | English |
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Universiti Sains Malaysia
2019
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| Online Access: | http://eprints.usm.my/58296/ http://eprints.usm.my/58296/1/Design%20And%20Study%20Of%20Spinning%20Sea%20Wave%20Point%20Absorber.pdf |
| _version_ | 1848883861077884928 |
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| author | Oon, Bee Mun |
| author_facet | Oon, Bee Mun |
| author_sort | Oon, Bee Mun |
| building | USM Institutional Repository |
| collection | Online Access |
| description | The point absorber is a type of Wave Energy Converter (WEC) that is used to
harness wave energy and convert it into useful electrical energy. It consists of a buoy,
which acts as the primary converter the process of energy conversion. The waves drive the
buoy and the wave energy absorbed by the buoy is converted into other form of energy
through a Power Take-Off (PTO) system. Over the past few decades, there are various type
of PTO mechanisms being implemented in the point absorbers such as hydraulic converter
or the direct electrical drive system. None of these studies is related to the utilization of
spiral drive mechanism. The main interest of this project is to study the feasibility of
spinning point absorber that uses spiral drive mechanism as its PTO system. In spiral drive
mechanism, the linear heaving motion of buoy is converted into rotational motion through
a spiral gear and twisting shaft. A prototype with scale 1:50 has been designed, fabricated
and tested in a wave tank in the laboratory. The prototype comes with five sets of twisting
shaft, each with different lead angles and 3 sets of flywheel, each with different thicknesses.
The twisting shafts are designed and fabricated in lead angle of 45°, 50°, 55°, 60° and 65°.
The flywheels are designed and fabricated in thickness of 3mm, 6mm and 9mm. Through
experiment, the most effective lead angle and thickness of flywheel are determined. Based
on the results, it is found that the spinning point absorber shows optimum result when the
twisting shaft with lead angle 55° and flywheel with thickness of 9mm are used. It is able
to store of 4.6mJ kinetic energy, which is equivalent to 33.2% of efficiency. |
| first_indexed | 2025-11-15T18:57:32Z |
| format | Monograph |
| id | usm-58296 |
| institution | Universiti Sains Malaysia |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-15T18:57:32Z |
| publishDate | 2019 |
| publisher | Universiti Sains Malaysia |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | usm-582962023-04-30T05:12:12Z http://eprints.usm.my/58296/ Design And Study Of Spinning Sea Wave Point Absorber Oon, Bee Mun T Technology TJ Mechanical engineering and machinery The point absorber is a type of Wave Energy Converter (WEC) that is used to harness wave energy and convert it into useful electrical energy. It consists of a buoy, which acts as the primary converter the process of energy conversion. The waves drive the buoy and the wave energy absorbed by the buoy is converted into other form of energy through a Power Take-Off (PTO) system. Over the past few decades, there are various type of PTO mechanisms being implemented in the point absorbers such as hydraulic converter or the direct electrical drive system. None of these studies is related to the utilization of spiral drive mechanism. The main interest of this project is to study the feasibility of spinning point absorber that uses spiral drive mechanism as its PTO system. In spiral drive mechanism, the linear heaving motion of buoy is converted into rotational motion through a spiral gear and twisting shaft. A prototype with scale 1:50 has been designed, fabricated and tested in a wave tank in the laboratory. The prototype comes with five sets of twisting shaft, each with different lead angles and 3 sets of flywheel, each with different thicknesses. The twisting shafts are designed and fabricated in lead angle of 45°, 50°, 55°, 60° and 65°. The flywheels are designed and fabricated in thickness of 3mm, 6mm and 9mm. Through experiment, the most effective lead angle and thickness of flywheel are determined. Based on the results, it is found that the spinning point absorber shows optimum result when the twisting shaft with lead angle 55° and flywheel with thickness of 9mm are used. It is able to store of 4.6mJ kinetic energy, which is equivalent to 33.2% of efficiency. Universiti Sains Malaysia 2019-05-01 Monograph NonPeerReviewed application/pdf en http://eprints.usm.my/58296/1/Design%20And%20Study%20Of%20Spinning%20Sea%20Wave%20Point%20Absorber.pdf Oon, Bee Mun (2019) Design And Study Of Spinning Sea Wave Point Absorber. Project Report. Universiti Sains Malaysia, Pusat Pengajian Kejuruteraan Mekanik. (Submitted) |
| spellingShingle | T Technology TJ Mechanical engineering and machinery Oon, Bee Mun Design And Study Of Spinning Sea Wave Point Absorber |
| title | Design And Study Of Spinning Sea Wave Point Absorber |
| title_full | Design And Study Of Spinning Sea Wave Point Absorber |
| title_fullStr | Design And Study Of Spinning Sea Wave Point Absorber |
| title_full_unstemmed | Design And Study Of Spinning Sea Wave Point Absorber |
| title_short | Design And Study Of Spinning Sea Wave Point Absorber |
| title_sort | design and study of spinning sea wave point absorber |
| topic | T Technology TJ Mechanical engineering and machinery |
| url | http://eprints.usm.my/58296/ http://eprints.usm.my/58296/1/Design%20And%20Study%20Of%20Spinning%20Sea%20Wave%20Point%20Absorber.pdf |