Experimental investigation on a thermochemical seasonal sorption energy storage battery utilizing MgSO-HO.

Thermochemical sorption energy storage (TSES) is the most recent thermal energy storage technology and has been proposed as a promising solution to reduce the mismatch between the energy supply and demand by storing energy for months in form of chemical bonds and restore it in form of synthesis chemical reaction. Compared with sensible/latent thermal energy processes, TSES system has major advantages, including a high energy storage capacity/density and the possibility of long-term energy retention with negligible heat loss. Therefore, a solid-gas thermochemical sorption battery is established and investigated utilizing a composite working pair of MgSO-HO based on room temperature expanded graphite (RTEG), treated with sulfuric acid (HSO) and ammonium persulfate ((NH)SO) as a porous additive.

Comparative study on the performance of solar still equipped with local clay as an energy storage material.

The paucity of freshwater is very dangerous in the coming years. Many coastal countries suffer from a scarcity of freshwater. Solar desalination is the cheapest way to produce freshwater from any type of non-drinkable water (brackish water and seawater).

Comparison of different adsorption pairs based on zeotropic and azeotropic mixture refrigerants for solar adsorption ice maker.

One of the important ways to the efficiently use of low-grade thermal energy is the adsorption refrigeration technology. However, it has some drawbacks such as low specific cooling power and coefficient of performance, especially under using the conventional adsorption pairs. Therefore, new adsorption pairs are tested in solar adsorption ice-maker and compared with other conventional pairs data from open literature to find the tendency of improving the solar adsorption ice-maker performance.

Performance enhancement of single-slope solar still using phase change materials.

Freshwater scarcity appears clearly in coastal areas of Egypt despite the existence of a large amount of seawater around. Solar still is the cheapest and oldest way to desalinate seawater and brackish water. In the proposed study, single-slope solar still was examined in the climatic conditions of Qena, Egypt (Latitude: 26.