Possibilities of Using Zeolites Synthesized from Fly Ash in Adsorption Chillers

Adsorption chillers produce cold energy, using heat instead of electricity, thus reducing electrical energy consumption. A major industrial waste, fly ash, can be converted to zeolite and used in adsorption as an adsorbent. In this research, three different types zeolites were synthesised from ash via a hydrothermal reaction alkaline solution (NaOH). The obtained samples (Na-A zeolites) modified with K2CO3 increase the water capacity these samples. Phase morphology analyses shows that desired formed properly but other crystalline phases also exist along nonporous amorphous phases. determined specific surface areas for Na-A (12 h) (24 are 45 m2/g 185 respectively, while area synthesized 13X is almost negligible. Water-isotherm each was measured. Considering application chillers, average very low, 1.73% 1.27%, two most probable operating conditions zeolite, whereas no available evaporation h). This analysis implies among materials only has potential adsorber sorption chillers.