1. Equilibrium vapor pressure properties for absorbent and adsorbent materials
- Author
-
Zhiyao Yang, Kyle R. Gluesenkamp, and Andrea Frazzica
- Subjects
Work (thermodynamics) ,Sorbent ,Materials science ,Vapor pressure ,020209 energy ,Mechanical Engineering ,Thermodynamics ,Sorption ,02 engineering and technology ,Building and Construction ,Adsorption ,020401 chemical engineering ,Waste heat ,0202 electrical engineering, electronic engineering, information engineering ,Working fluid ,0204 chemical engineering ,Absorption (chemistry) - Abstract
Sorption devices are important tools for the efficient utilization of fuels and waste heat. Amid a tremendous 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 functional 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.
- Published
- 2021