PDF Publication Title:
Text from PDF Page: 012
Fig. 19. Relative Mach number behind single-stage turbine rotor for the examined media CONCLUSIONS To sum up, OTEC power plants are the source of clean and renewable electric energy. Along with the energy they can produce fresh water, which is of high importance in the areas with its shortages. A properly designed system generates limited, or even zero amount of carbon dioxide. It is optimistically estimated that the resources of thermal energy are so high that they can meet all current power requirements of the human society. Its disadvantage still remains high production cost, which is remarkably higher than in case of energy production from coal. For the operation of this type of power plant to be possible, the temperature difference between the upper and lower heat source should reach about 20 °C, the least. Moreover, vast resources of cold water should be situated close to the land for large power plants to be erected in the vicinity of human agglomerations. Up to the present, certain problems can be observed with collecting financial support for such actions, as only small-scale systems have been tested so far. Another disadvantage is unfavourable effect of on the environment, as localisation of power plants (pipes with warm and cold water) close to the land unfavourably affects the off- shore marine ecosystem and reefs. The here reported analysis has proved that constructing a system which utilises thermal energy stored in oceans is possible. It has also turned out that higher potential is this field can be found in the circumpolar regions. For the assumed mass flow rate of the water used for producing the organic medium vapour, certain media were proposed which secured installation efficiency exceeding 6 %. This result does not seem impressive, but the source of this energy is practically inexhaustible. For a group of low-boiling media a preliminary design of the axial turbine was presented. The realistic ranges of the selected design parameters have proved that constructing a highly efficient turbine making use of low-boiling medium is possible. BIBLIOGRAPHY 1. Akulichev V., Ilyin A., Tikmenov V.A. Possibility of Using OTEC Systems in Arctic Regions, OCEANS ‘83, Proceedings, Aug. 29 1983-Sept. 1 1983; 2. Bogdanienko J. Renewable energy sources (in Polish), PWN, Warsaw, 1989; 3. Breeze P. Power Generation Technologies, ISBN 0 7506 6313 8, Elsevier’s Science and Technology Rights Department in Oxford, London, UK, 2005; 4. Chong H-Y., Lam W-H. Ocean renewable energy in Malaysia The potential of the Straits of Malacca, Renewable and Sustainable Energy Reviews 23, 2013; 5. Cohen R. Energy from the ocean, Phil. Trans. R, Soc. Lond. A 307, 1982; 6. [Electronic document], access mode: http://www.otec.ws, [reading: 03-04-2013]; 7. [Electronic document], access mode: http://www.buch-der- synergie.de/c_neu_html/ c_06_10_wasser_temperaturgradient. htm [reading: 03-04-2013]; 8. [Electronic document], access mode: http://www.seasolarpower. com, [reading: 03-04-2013]; 9. Etemadi A., Emdadi A., Afshar O. A., Emami Y. Electricity Generation by the Ocean Thermal Energy, Energy Procedia 12, 2011; 10.Hung T.C., Wang S.K., Kuo C.H., Pei B.S., Tsai K.F. A study of organic working fluids on system efficiency of an ORC using low-grade energy sources, Energy 35, 2010; 11. Kim N.J., Ng K.CH., Chun W. Using the condenser effluent from a nuclear power plant for Ocean Thermal Energy Conversion (OTEC), International Communications in Heat and Mass Transfer 36, 2009; 12. Kosowski K. Selecting favourable values of basic design parameters for thermal turbines. Generalised method of turbine stage design (in Polish), Scientific reports of the Gdansk University of Technology, Shipbuilding, no LXII, Gdansk, 1995; 13. Lewandowski W. Project of renewable energy sources (in Polish), WTN, Warszawa, 2001. 14.Mikielewicz J., Piwowarski M., Kosowski K. Design analysis of turbines for co-generating micro-power plant working in accordance with organic Rankine’s cycle, Polish Maritime Research, S1, ISSN 1233-2585, 2009; 15.Pelc R., Fujita R. M. Renewable energy from the ocean, Marine Policy 26, 2002; 16. omputer code Engineering Equation Solver, Version 9.218, 2012; 17. Computer code REFPROP Reference Fluid Thermodynamic and Transport Properties, Version 8, 2007; 18. Rajagopalan K., Nihous G.C. Estimates of global Ocean Thermal Energy Conversion (OTEC) resources using an ocean general circulation model, Renewable Energy 50, 2013; 19.Semmari H., Stitou D., Mauran S. A novel Carnot-based cycle for ocean thermal energy conversion, Energy 43, 2012; 20. Vega L.A. First Generation 50 MW OTEC Plantship for the Production of Electricity and Desalinated, OTC 20957, Unauthenticated Download Date | 1/11/15 7:38 PM POLISH MARITIME RESEARCH, No 2/2013 59PDF Image | Design analysis of ORC micro-turbines making use of thermal energy
PDF Search Title:
Design analysis of ORC micro-turbines making use of thermal energyOriginal File Name Searched:
pomr_2013_0016.pdfDIY PDF Search: Google It | Yahoo | Bing
NFT (Non Fungible Token): Buy our tech, design, development or system NFT and become part of our tech NFT network... More Info
IT XR Project Redstone NFT Available for Sale: NFT for high tech turbine design with one part 3D printed counter-rotating energy turbine. Be part of the future with this NFT. Can be bought and sold but only one design NFT exists. Royalties go to the developer (Infinity) to keep enhancing design and applications... More Info
Infinity Turbine IT XR Project Redstone Design: NFT for sale... NFT for high tech turbine design with one part 3D printed counter-rotating energy turbine. Includes all rights to this turbine design, including license for Fluid Handling Block I and II for the turbine assembly and housing. The NFT includes the blueprints (cad/cam), revenue streams, and all future development of the IT XR Project Redstone... More Info
Infinity Turbine ROT Radial Outflow Turbine 24 Design and Worldwide Rights: NFT for sale... NFT for the ROT 24 energy turbine. Be part of the future with this NFT. This design can be bought and sold but only one design NFT exists. You may manufacture the unit, or get the revenues from its sale from Infinity Turbine. Royalties go to the developer (Infinity) to keep enhancing design and applications... More Info
Infinity Supercritical CO2 10 Liter Extractor Design and Worldwide Rights: The Infinity Supercritical 10L CO2 extractor is for botanical oil extraction, which is rich in terpenes and can produce shelf ready full spectrum oil. With over 5 years of development, this industry leader mature extractor machine has been sold since 2015 and is part of many profitable businesses. The process can also be used for electrowinning, e-waste recycling, and lithium battery recycling, gold mining electronic wastes, precious metals. CO2 can also be used in a reverse fuel cell with nafion to make a gas-to-liquids fuel, such as methanol, ethanol and butanol or ethylene. Supercritical CO2 has also been used for treating nafion to make it more effective catalyst. This NFT is for the purchase of worldwide rights which includes the design. More Info
NFT (Non Fungible Token): Buy our tech, design, development or system NFT and become part of our tech NFT network... More Info
Infinity Turbine Products: Special for this month, any plans are $10,000 for complete Cad/Cam blueprints. License is for one build. Try before you buy a production license. May pay by Bitcoin or other Crypto. Products Page... More Info
| CONTACT TEL: 608-238-6001 Email: greg@infinityturbine.com | RSS | AMP |