تحسين اداء المجفف الحراري لتبغ الفرجينيا بالطاقة الشمسية نظريا وتطبيقيا

This paper studies of solar dryer design in the research tobacco center in Geb Hasan, Lattakia, Syria, in August 2004. The dryer works with ducts system for sending hot air from the rocky storage tank into the drying chamber with electrical energy source. The performance of this design of dryer was not good enough. So many things had been done to improve the performance, replacing the ducts system with force convection recirculation of hot air system that uses fans. As a result the heat efficiency of drying decreases to 63.6%, and the amount of using a fuel is reduced to 40% less, and a computer program is devised to calculate the parameters.