“…The last relevant cluster is related to "PCM" and "phase change slurries" for "latent heat thermal energy storage". Youssef et al [62] published a literature review on different types of PCSs for secondary refrigeration and air conditioning in a melting temperature range from 0 to 20 • C. In literature, different 1-component slurry for cooling such as ice slurry, slush nitrogen, and slush hydrogen was defined as non-encapsulated phase change slurries (PCSs) [63], and different preparation methods of these PCSs were summarized and divided into two groups: for slush hydrogen and slush nitrogen (freeze-thaw, Auger, Nozzle expansion, and Helium gas/liquid injection methods) and for ice slurry and clathrate hydrate slurry (supercooling release, scraping, direct contact, fluidized bed, and vacuum methods) [63]. In addition, these non-encapsulated PCSs were systematically reviewed aiming at their thermo-fluidic properties (rheological behaviors, flow pattern, pressure drop, and heat transfer performance, among others).…”