Experimental Studies of Thermal Hydraulics of Deep Eutectic Solvent Based on Choline Chloride

Table 1

Melting Temperature, viscosity, and heat capacity of molten salt, ionic liquid, and DESs.

Fluid			Melting point (K)	Applications	Viscosity (mPa·s)	Heat capacity (J/K·kg)
Molten salt	LiF-NaF-KF (FLiNaK) @891K		727	Molten salt reactor thermal ESS high temperature concentrating solar power	0.0029	1,882.8
	LiF-BeF2 (FLiBe) @969K		733		0.0056	2,414.17
	KCl-MgCl2 @736K		708		0.0014	1,158.97
Ionic liquid	[C2MIm][BF4]		288.15	Dispersed hydrates aqueous two-phase (ATP) system absorption chiller	61.9 @298.15 K	1,556
	[C8MIm][BF4]		185.15		267 @298.15 K	1,765
	[C2MIm][EtSO4]		252.15		97.4 @298.15 K	1,620
DES	HBA	HBD
	ChCl	Glycerol	327 (1:2)	Pretreatment of lignocellulosic date palm residues to enhance cellulose digestibility	259 @298.15 K	237.7 ± 0.6
	ChCl	Urea	285 (1:2)		632 @298.15 K	180.05