6. Two-phase liquid-solid heat transfer fluids

The recent development of fluids formed from two-phase liquid-solid mixtures is based on three different technologies:

• ice slurry (PCS) ;

• microcapsule-based ice slurries (MPCS) ;

• hydrate-based grouts (CHS).

By exploiting the latent heat of fusion of solid particles for PCS and MPCS, and the heat of reaction for CHS, we can reduce thermal storage volumes and the size of piping, valves and pumps in the distribution network compared with single-phase refrigerants.

The use of PCS ice slurries is recent, and commercial applications have...