Mass Diffusion in the Process of Ammonia Vapor Absorption. 3rd Report. Vapor-Liquid Equilibrium Diagram of Ammonia Solution of NaSCN and LiSCN, and Mass Diffusion in the Process of Ammonia Vapor Absorption.
Year: 1993
Type: article
Abstract: In this study precise measurements of P-T-C curves for the NaSCN-NH3 and LiSCN-NH3 solutions were made, and the characteristics of static ammonia vapor absorption into those solutions were clarified. As a result it was observed that the NH3/LiSCN system shows low vapor pressure, so that the characteristics of vapor absorption are superior, compared with the NH3/NaSCN system. On the other hand, the mass diffusion coefficient in the process of ammonia vapor absorption into a NaSCN-NH3 solution is much higher than in the case of LiSCN-NH3. Furthermore, the experimentally observed behavior is explained in terms of molecular theory, based on Li+ and Na+ ionic behavior. This study proved highly useful for developing chemical energy systems for temperature boosting and also ammonia absorption heat pumps applicable in a wide temperature range.
Language: English
Subfield: Mechanical Engineering
Field: Engineering
Domain: Physical Sciences
Open Access status: diamond
OpenAlex ID: W646597944