What are mhk technologies?
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- OTEC is good for the environment and helps to grow maritime creatures that benefit CO2 fixation
- OTEC can produce products with commercial possibilities as well as generate a great amount of power
- OTEC can harness a great amount of energy, but needs capital
- OTEC system can be used to control any pollutants it would produce
- OTEC can fuel desalination
OTECOTEC GoodOTEC has many advantages- laundry listNeves & Ramos 13 (Marcus Godolphim de Castro & Ricardo Alan Verdú from Universidade Estadual Paulista Júlio de Mesquita Filho), "Preliminary Study of Ocean Thermal Energy Conversion (OTEC) Plant in Brazil", 22nd International Congress of Mechanical Engineering, Accessed 6-25-14, < http://www.abcm.org.br/pt/wp-content/anais/cobem/2013/PDF/2405.pdf>. The advantages are the energy resources for OTEC that are vast and naturally self-renewable and non-polluting. Furthermore, it can produce several byproducts, such as considerable quantities of fresh water, marine-life-based on industrial products, seafoods, as well as chilled-water for air conditioning (Crews, 1997). Fig. 1 shows how the byproducts can be obtained. Tahara et al. (1995) say that a 100 MW OTEC system can reduce the amount of CO2 emissions by 140,000 t-C/year. The energy payback time is 0.46 year, which is supposed to build a large-scale system is more feasible than many small-scale systems. The energy conversion has a small efficiency, but it might work without stopping generating clean energy. OTEC is good for the environment and helps to grow maritime creatures that benefit CO2 fixationFinney 8 (Karen Anne Finney, Environmental and Water Resource at Computational Hydraulics Int. ), "Ocean Thermal Energy Conversion", Guelph Engineering Journal, Accessed 6-26-14, < http://www.soe.uoguelph.ca/webfiles/gej/articles/GEJ_001-017-023_Finney_Ocean_Thermal_Energy.pdf>. The first stage of the open-cycle pumps the warm seawater Overall proposed OTEC technologies have many potential benefits to the environment. OTEC is a
However, it has now regained recognition worldwide as a realistic solution to our world energy issue. Instead of having a great potential for power generation, it also carries the ability to produce high value products from the large volume of Deep Sea Water (DSW) that can be released as byproducts of OTEC plant operation. These products can hold a very profitable place in industries such as pharmaceutical, food, cosmetics and mineral water production. Further research on ocean current and DSW properties can someday lead to the commercial used of OTEC. OTEC can harness a great amount of energy, but needs capitalSrinivasan 9 (Nagan Srinivasan, PhD, VP of Deepwater Structures, Inc.), "A New Improved Ocean Thermal Energy Conversion System With Suitable Floating Vessel Design", ASME 2009 28th International Conference on Ocean, Offshore and Arctic Engineering, Volume 4, Accessed 6-26-14 Demand for energy worldwide is increasing significantly. A need for alternate energy sources has been brought to the attention of scientists and engineers. Ocean Thermal Energy Conversion (OTEC) is one among them which is in the development stage for the past three to four decades. Great amount of energy is available in deep-ocean with temperature difference between in upper surface-layer and in deep-ocean layer with maximum range of say up to 25 degree C in localized offshore locations near of equatorial waters. However, the technology is not in commercial operation due to the need of large capital cost. Advances in heat-exchanger material, cold-water pumps and working-fluid are the areas that research has been done extensively to make OTEC successful system. OTEC system can be used to control any pollutants it would produceKim et al 10 (Hyeon-Ju Kim, Deep Ocean Water Application Research Center @ Korea Ocean R&D Institute, Ho-Saeng Lee, Seung-Won Lee, Dong-Ho Jung, Duck-Su Moon), "Mitigation of environmental impact of power-plant discharge by use of Ocean Thermal Energy Conversion system", OCEANS 2010 IEEE - Sydney, Accessed 6-26-14k To minimize excessive thermal pollution which could cause serious socio-economic problems, Ocean Thermal Energy Conversion (OTEC) system can be applied to control the resultant temperature of combined discharge as well as to produce electricity by reusing the warm discharge from power-plant as a heat source for OTEC. Adaptability analysis of closed cycle OTEC was examined to 350 MW fossil fuel power plant. The results show that combined system could mitigate the thermal discharge effectively if suitable size of OTEC is connected with the power-plant. Furthermore, this method gives us marine forest to absorb carbon dioxide which may be altered to greenhouse gas emission credit as well as clean electric power. OTEC can fuel desalinationJadhav & Kale ‘5 (SM Jadhav, Associate Professor of Information Technology at Dr. Babasaheb Ambedkar Technological University; RG Kale), "Ocean Thermal Energy Conversion", Two Days National Seminar on Alternative Energy Sources, http://www.vpmthane.org/publication-aenergysource/alternate_energy_ebook.pdf OTEC has important benefits other than power production. 1) Air conditioning Air conditioning can be a byproduct. Spent cold seawater from an OTEC plant can chill fresh water in a heat exchanger or flow directly into a cooling system. Chilled- 2) Soil agriculture OTEC technology also supports chilled-soil agriculture. When cold seawater flows through underground pipes, it chills the surrounding soil. The temperature difference between plant roots in the cool soil and plant leaves in the warm air allows many plants that evolved in temperate climates to be grown in the subtropics. 3) Desalination An OTEC plant that generates 2-MW of net electricity could produce about 4,300 cubic meters (14,118.3 cubic feet) of desalinated water each day. Directory: file -> view view -> Western Europe after wwii view -> Author study: paul fleischman view -> Qpa1 7ela study Guide view -> Arctic Oil/Gas Neg view -> November 1970 Approximately 150,000-500,000 deaths Bhola Cyclone Bangladesh view -> Grade Level: 6 Unit of Study: Caribbean glce view -> Citation: Duffield, Katy view -> Table of Contents Lesson # view -> Chinese Wind Energy Disad Download 0.89 Mb. Share with your friends:
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