Numerical Analysis of Packed Bed Reaction of Calcium Hydroxide Pellets for Thermochemical Energy Storage

Performance of an Indirect Packed Bed Reactor for Chemical Energy Storage

“…Then, the size that the indirect heat exchanger would present using other thermochemical systems can be approximately assessed by multiplying this factor with the energy densities of these storage materials. In this regard, Sattler [51] investigated a manganese oxides couple, Funayama et al [23] the calcium oxide/calcium hydroxide system and Han et al [24] studied the properties of a structured aluminum/calcium carbonate TES. Table 9 reports the obtained results, showing similarity among the energy densities obtained with the spinel and the sensible heat system at a temperature range of 100 • C. On the other hand, the HX size is quite lesser if the "solar salt" is used in a larger temperature interval.…”

“…Then, the size that the indirect heat exchanger would present using other thermochemical systems can be approximately assessed by multiplying this factor with the energy densities of these storage materials. In this regard, Sattler [ 51 ] investigated a manganese oxides couple, Funayama et al [ 23 ] the calcium oxide/calcium hydroxide system and Han et al [ 24 ] studied the properties of a structured aluminum/calcium carbonate TES.…”

“…Currently, most works are related to the oxide/hydroxide systems, with direct and indirect heat exchange geometries including fluidized and packed beds [ 8 , 9 , 10 , 11 , 18 , 19 , 20 , 21 , 22 , 23 , 24 ]. As far as oxide redox couples are concerned, structured fixed-bed systems are reported, based on cobalt oxides, perovskites and doped mixed oxides, and with direct contact between the TES and the HTF [ 16 , 25 , 26 , 27 , 28 , 29 ].…”