Hydrokinetic power

In the next 20 years, hydrokinetic power drawn from the earth s oceans and rivers could account for more than 10% of the world s global electricity market (Wood, 2010). The renewable energy resources from ocean wave, tidal stream, ocean and river current and ocean thermal resources are expected to be the major growth area over the next decade (Marsh, 2009). 

Wood, K. (2010), Composites-enabled tidal stream energy projects lead the way as new forms of hydrokinetic power generation move towards commercialization , Composites Technology, Composites World, 30 September 2010. 

Hydrostatic Transmissions. The most recent use of hydrauhc power has been in hydrostatic transmissions which are used in many self-propelled harvesting machines and garden tractors and in large tractors and constmction machines. Apphcations in tmcks for highway operation also are being developed. No clutch is used and no gear shifting is involved, thus this type of transmission could be called automatic, but in all other respects the hydrostatic transmission has no similarity to the hydrokinetic automatic transmission (16). 

Slocum was an expert in marine propulsion and in noise and vibration engineering. He has written the textbook Hydraulics, of which the main ehapters are 1. Hydrostaties, 2. Hydrokinetics, 3. Hydrodynamics, and 4. Hydraulic data and tables. In the Preface it is stated that hydraulics has had an remarkable impetus in the USA so that the new aspeets of this technical branch have to be added to the literature, both for educational purposes and for research. The extent and the cheapness of hydropower energy was stated to greatly improve modem the society in both private and eommercial domains. The text presented in the book should include a basic treatment of the principles of hydraulies with adequate recent important works made in the counhy, including the Catskill Aqueduct in New York State, or the power plants at Niagara Falls. The book ineludes also information on turbines, and typical examples are added at the end of each section. 

Hydrod3Tiamic power transmissions— also called tuibotransmissions or hydrokinetic drives—are hydraulic converters. These converters change the speed and torque between input and output shafts steplessly and automatically. The energy is transmitted by a fluid as medium power transmissions fundamentally differ from all other power transmissions. This applies in particular to all mechanical power transmissions. 

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