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A fuzzy set methodology to compare between different autonomous PV-RO desalination plants

Iosifidis Fanos

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Year 2009
Type of Item Διπλωματική Εργασία
Bibliographic Citation Fanos Iosifidis, "A fuzzy set methodology to compare between different autonomous PV-RO desalination plants", Diploma Work, Department of Electrical and Computer Engineering, Technical University of Crete, Chania, Greece, 2009
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The availability of clean drinking water is a development issue faced by billions ofpeople in the developing and near-developed world. The global nature of this issue opens the door for the application of communal solutions, as was demonstrated by the discussions surrounding the Johannesburg global climate meeting where water issues were a key concern that all nations could come together to support. Energy has been recognized as important as water for the development of good standards of life because it is the force that puts in operation all human activities. Desalination is a proven technology capable of delivering small to large quantities of fresh water by separatingdissolved minerals and impurities from seawater or other salty water.Desalination is commonly used in rural or isolated areas with dry climates wheretraditional water supplies, such as dams or pumping from groundwater, are limited.Although potable water is essential to ensure life in this regions, the energy demands for desalination plants becomes a great socio-economic factor. The use of renewable energy can help to decrease the gas emissions, as the rising need for fresh water increases the demands for desalination plants.This study highlights the importance of the use of alternative technologies for water desalination plants. The reverse osmosis remains the cheapest option for both low and high production capacities in comparison to other technologies. However, it is important to restate that desalination cost is extremely depending on specific site, availability of energy, energy recovery, and capacity as well as to the overall system design. Further, renewable energy technologies must be improved to satisfy future human needs and for environmental reasons as well. A fuzzy set methodology for optimum decision and comparison between several Autonomous PV-RO (APVRO) desalination plants driven by renewable (solar PV) energy has been investigated in order to specify a good benefit to cost solutions. Results as presented in this study indicate that fuzzy methodology canbe used as a strong comparison tool for data manipulation and decision making.The data was tested and validated through a case study scenario for Aqaba (Jordan) and Agia Napa (Cyprus).

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