کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
623403 1455343 2014 17 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Experimental performance evaluation of a stand-alone point-focus parabolic solar still
ترجمه فارسی عنوان
ارزیابی عملکرد تجربی یک منظومه شمسی پارابولی خنثی است
کلمات کلیدی
نقطه نظر خورشید هنوز هم، آب مرطوب بازده روزانه، بهره وری، کیفیت آب
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی تصفیه و جداسازی
چکیده انگلیسی

A stand-alone point-focus parabolic solar still (PPSS) was designed and fabricated for desalination of seawater or brackish water and purification of non-potable water. The system consists of a parabolic dish concentrator; a two axis sun tracker based on programmable logic controllers (PLCs) and two plate heat exchangers (PHEs) to preheat the salt water before entering the absorber located at the focal point as well as condense the generating steam. Distillate productivity of the PPSS was measured along with evaluation of the effects of environmental and operational parameters that includes: beam solar insolation, wind speed, air temperature, absorber wall temperature and raw water salinity under the climatic conditions of Tehran during October. The maximum productivity of 5.12 kg within 7 h in a day was measured with the maximum average solar insolation of 626.8 W/m2 and the absorber wall temperature of 150.7 °C. However, no significant effect of air temperature, wind speed, and water salinity on the productivity was observed. The maximum daily efficiency of 36.7% was calculated with a maximum hourly output of 1.5 kg/h. The quality of lab-prepared salt water samples was analyzed before and after desalination and the results comply with the WHO guidelines for drinking water quality.

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ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Desalination - Volume 352, 3 November 2014, Pages 1–17
نویسندگان
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