Integration of a solar heliostat field with humidifier-dehumidifier desalination units to generate electricity and fresh water
الموضوعات :Seyyed Mostafa Ghadami 1 , سيد مسعود سيدي 2
1 - Department of Electrical Engineering, Aliabad Katoul Branch, Islamic Azad University, Aliabad Katoul ,Iran,
2 - دانشگاه آزاد اسلامی واحد علی آباد کتول
الکلمات المفتاحية: Solar energy, Humidifier-dehumidifier, Fresh water, Electricity cost, Cogeneration, ,
ملخص المقالة :
One of the most important human needs is fresh water. Production of electricity and fresh water in compliance with environmental issues is a very important issue. In the present work, a solar cogeneration system is proposed for the production of electricity and fresh water. Power system and humidifier-dehumidifier (HDH) units are responsible for electricity and freshwater production, respectively. Firstly, thermodynamic analysis is performed to determine the mass, pressure, temperature and other thermodynamic properties of each flow. An economic analysis is then performed to determine the maximum benefit of the system. The results show that the maximum values for profit and net power are 1164 $/h and 20468 kW at pressure ratio 6 and 7, respectively. The mass flow rate of fresh water increases 46.4% when mass ratio of water to air goes up from 1.0 to 1.7 at an inlet hot air dry bulb temperature of 83 ℃.
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