Discrete and Continuous Models and Applied Computational ScienceDiscrete and Continuous Models and Applied Computational Science2658-46702658-7149Peoples' Friendship University of Russia named after Patrice Lumumba (RUDN University)8599Use of Natural Syrian Zeolitic Tuff in Solar Thermal ApplicationsSoulaymanS ShКафедра прикладной физики; Институт прикладных технологий; Higher Institute of Applied Sciences and Technology-YunusovaS AКафедра теоретической физики; Российский университет дружбы народов; Peoples' Friendship University of Russia-Higher Institute of Applied Sciences and TechnologyPeoples' Friendship University of Russia15042008410410808092016Copyright © 2008,2008We focus our attention in this work, from experimental point of view, on the applicability of natural Syrian zeolitic tuff in storing thermal solar energy. Several samples of different zeolitic content were taken from different heights of the borehole. These samples were used in this study. It was found that, when the heating temperature is below C, the effect of Syrian natural zeolitic tuff' storing energy is quite good. The obtained results clearly show that the tentative idea of utilizing natural zeolitic tuff to store solar heat energy is feasible. Zeolitic content and grain sizes are the main affecting factors. As the operating temperature of the conventional flat-plate solar collectors generally is below C, the aforementioned conclusion has important significance.zeolitic tuffthermal energyenergy storagelong-term storage