Energy and exergy investigation of industrial coal debris effect on solar stillNafila Smakdji، Abderrahmane Khechekhouche، Mohamed Abdelgaied، Abd Elnaby Kabeel، Ali Sadoun، Sayed A. WardEnvironmental Progress & Sustainable Energyالمجلّد 42، (6)2023مقال وصول مفتوح 12