Experimental Study on Utilizing Silica Gel with Ethanol and Water for Adsorption Heat Storage

Adsorption heat storage is the most feasible technology for heating decarbonization, which can store large quantities of waste and renewable an exceptionally long time. However, utilizing adsorption in geographical locations with sub-zero ambient conditions challenging. Therefore, this paper experimentally investigates use ethanol as a working fluid paired silica gel utilizes source. The characteristics, charging/discharging cyclic performance, energy conversion performance via exergy analysis were determined under realistic operating benchmarked against widely investigated gel/water. Ethanol adsorbate was successfully utilized to employ evaporators conditions. Silica gel/ethanol showed significant net uptake, twice that physical characteristics molecules led degree non-desorbed fluid, hampered such potential 18.08 kJ/kgads evaporator temperature 24.84 above-zero compared 155.12 temperature. On other hand, fastest rate shorten cycle time by 45%. major contributor destruction transferred charging heat, five times discharging due high