한국신재생에너지학회:학술대회논문집
- 2010.06a
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- Pages.237.1-237.1
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- 2010
Primary Energy Conversion in a Direct Drive Turbine for Wave Power Generation
- Prasad, Deepak Divashkar (Korea Maritime University) ;
- Zullah, Mohammed Asid (Korea Maritime University) ;
- Kim, You-Taek (Korea Maritime University) ;
- Lee, Young-Ho (Korea Maritime University)
- Published : 2010.06.17
Abstract
Recent developments such as concern over global warming, depletion of fossil fuels and increase in energy demands by the increasing world population has eventually lead to mass production of electricity using renewable sources. Ocean contains energy in form of thermal energy and mechanical energy: thermal energy from solar radiation and mechanical energy from the waves and tides. The current paper looks at generating power using waves. The primary objective of the present study is to maximize the primary energy conversion (first stage conversion) of the base model by making some design changes. The model entire consisted of a numerical wave tank and the turbine section. The turbine section had three components; front guide nozzle, augmentation channel and the rear chamber. The augmentation channel further consisted of a front nozzle, rear nozzle and an internal fluid region representing the turbine housing. Different front guide nozzle configuration and rear chamber design were studied. As mentioned, a numerical wave tank was utilized to generate waves of desired properties and later the turbine section was integrated. The waves in the numerical wave tank were generated by a piston type wave maker which was located at the wave tank inlet. The inlet which was modeled as a plate wall which moved sinusoidally with the general function,
Keywords
- primary energy conversion;
- numerical wave tank;
- augmentation channel;
- direct drive turbine;
- water power