Thermophysical Properties of Lithium Bromide + 1,2-Propanediol Aqueous Solutions-Solubility, Density and Viscosity.

摘要

The key technical barrier to using water/LiBr as the working fluid in air-cooled absorption chillers and absorption heat pump systems is the risk of crystallization when the absorber temperature rises at fixed evaporating pressure (Wang et al., 2011). Crystallization results in interruption of absorption chiller/heat pump operation and possible damage to the unit. One of the effective crystallization control strategies is using crystallization inhibitors. Biermann (1978) reviewed chemical inhibitors having the potential to safely operate in an air-cooled, solar-powered absorption system.