Didi Faouzi*1, N. Bibi-Triki1, B. Draoui2, A. Abene3 1Materials and Renewable Energy Research Unit M.R.E.R.U, University of Abou-bakr Belkaïd, B.P. 119Tlemcen, Algeria 2Energy Laboratory in Drylands, University of Bechar, Bechar Algeria 3Euro-Mediterranean Institute of Environment and

R. Georgiev, K. Peichev, A. Pavlov, K.Trendafilov, G. Dineva, I. Binev Abstract. A laboratory adsorption cooling module was developed. The module is designed to operate on ecological materials: zeolite and water. The authors of this publication set the following objectives: designing

R. Georgiev, K. Peychev Abstract. The purpose of this paper is to study the thermal efficiency of a laboratory solar thermal module at different mounting angles. Mounting angles are 20˚, 30˚ and 40˚, with due allowance for the annual calendar time and latitude of Bulgaria. The solar t