Equilibrium vapor pressure properties for absorb ent and adsorb ent materials

Sorption devices are important tools for the efficient utilization of fuels and waste heat. Amid a tremen-dous diversity of cycles and applications, all sorption systems have an equilibrium vapor pressure that depends on the sorbent temperature and composition. The vapor pressure properties of working fluids are reported in the literature in a variety of ways, which impedes wide-ranging cross comparisons or screening studies for novel applications. This work compiles equilibrium vapor pressure properties for 123 liquid absorbents with 31 absorbates and 139 solid adsorbents with 16 adsorbates. The adsorption pairs are represented with six functional forms. Most of the absorption pairs are represented with 10 functional forms, plus several that are represented with custom empirical equations. Because the func-tional forms used in the literature vary widely, in this work each functional form was generalized. This paper is designed to facilitate comparisons of working fluid properties for screening studies, provide a quick reference to existing research, and present a framework for standardizing the reportage of vapor pressure equilibrium data for existing and future working pairs. ? 2020 Elsevier Ltd and IIR. All rights reserved.

Automated summary

This study compiles equilibrium vapor pressure properties for a wide range of liquid absorbents and solid adsorbents, represented in various functional forms. It aims to facilitate comparisons of working fluid properties, provide a quick reference to existing research, and present a framework for standardizing the reporting of vapor pressure equilibrium data for existing and future working pairs.