Abstract
This study introduces a new adsorbent/refrigerant pair to be used in adsorption cooling applications. Adsorption isotherms and kinetics of Difluoroethane (HFC-152a) onto highly porous activated carbon Maxsorb III at temperatures ranging from 25 to 75°C have been investigated. Experimental data of adsorption uptake have been fitted with Dubinin–Astakhov (D–A) and Tóth equations. D–A equation is found to be more suitable than Tóth equation for fitting the adsorption uptake. Experimental results showed that Maxsorb III can adsorb up to 1.3 kg of HFC-152a per kg of adsorbent. Experimental data of adsorption kinetics have been fitted with linear driving force (LDF) and Fickian diffusion (FD) models. Both LDF and FD models are found to be able to simulate the adsorption kinetics of the proposed pair. Isosteric heat of adsorption has been estimated considering the real gas case. Pressure–temperature–concentration (P–T–C) diagram of the pair has been also presented.
| Original language | English |
|---|---|
| Pages (from-to) | 196-205 |
| Number of pages | 10 |
| Journal | International Journal of Refrigeration |
| Volume | 70 |
| DOIs | |
| State | Published - 1 Oct 2016 |
| Externally published | Yes |
Bibliographical note
Publisher Copyright:© 2016 Elsevier Ltd and IIR
Keywords
- Activated carbon
- Adsorption
- Adsorption isotherms
- Adsorption kinetics
- Difluoroethane
ASJC Scopus subject areas
- Building and Construction
- Mechanical Engineering