An advanced solid sorption chiller using SWS-1L

A review on the use of calcium chloride in applied thermal engineering

“…15. Views of (a) the pelletised bed adsorber without and with the SWS-1L [118] and (b) the coated adsorber with the SWS-1L [117]. 1 There is a difference between latent heat storage and thermochemical storage based on CaCl 2 : a latent heat storage process involves melting and solidification while sorption and thermochemical storage processes involve desorption/dehydration and adsorption/hydration.…”

“…Among the various selective water sorbents synthesised by the Boreskov Institute of Catalysis and studied in collaboration with the Institute of Energy Transformation and Accumulation, CaCl 2 in mesoporous silica gel has been shown to be the most promising composite sorbent for sorption refrigeration [117]. From theoretical point of view, the material, whose anhydrous sample contains 33 wt% of CaCl 2 , offers the potential for a cooling COP of 0.7 under an evaporation temperature of 10 C, a condensation temperature of 35 C and a desorption temperature below 100 C. This COP is higher than those given by common adsorbents such as silica gel or zeolite (please, compare to COP data listed in Refs.…”

Basics of Adsorption Heat Pump Processes

“…Aristov et al [15][16][17], Restuccia et al [18,19] and Freni et al [20] have reported on a range of composite "salt in porous matrix" materials (Selective Water Sorbents or SWS's) in which either CaCl 2 or LiBr is impregnated into mesoporous silica gel. These materials adsorb water in an intermediate way between that of solid adsorbents, salt hydrates and liquid absorbents.…”

A New Adsorbent Composite Material Based on Metal Fiber Technology and Its Application in Adsorption Heat Exchangers

“…Jaeschke and Wolf [16] propose to glue a single layer of silica gel onto the surface of a finned-tube heat exchanger, whereas Freni et al [17] report an increase by a factor of 10 to 20 in power density for a binder-based coating with the silica gel/calcium chloride composite material SWS-1L onto finned tubes compared to a granular bed. Other binder-based coatings show similar behavior [18,19].…”