کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
7050004 1457163 2013 11 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Theoretical simulation of small scale psychometric solar water desalination system in semi-arid region
ترجمه فارسی عنوان
شبیه سازی تئوری سیستم خنک کننده خورشیدی سیستم روان سنجی مقیاس کوچک در منطقه نیمه خشک
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی جریان سیال و فرایندهای انتقال
چکیده انگلیسی
Many countries around the world suffer from water scarcity. This is especially true in remote and semi-arid regions in the Middle East and North Africa (MENA) where per capita water supplies decline as populations increase. This paper presents the results of a theoretical simulation of an affordable small scale solar water desalination plant using the psychometric humidification and dehumidification process coupled with an evacuated tube solar collector with an area of about 2 m2. A mathematical model was developed to describe the system's operation. Then a computer program using Simulink Matlab software was developed to provide the governing equations for the theoretical calculations of the humidification and dehumidification processes. The experimental and theoretical values for the total daily distillate output were found to be closely correlated. After the experimental calibration of the mathematical model, a model simulating solar radiation under the climatic conditions in the Middle East region proved that the performance of the system could be improved to produce a considerably higher amount of fresh water, namely up to 17.5 kg/m2 day. This work suggests that utilizing the concept of humidification and dehumidification, a compact water desalination unit coupled with solar collectors would significantly increase the potable water supply in remote area. It could be a unique solution of water shortages in such areas.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Applied Thermal Engineering - Volume 59, Issues 1–2, 25 September 2013, Pages 232-242
نویسندگان
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