Performance Evaluation of Phenol-Resin-Based Adsorbents for Heat Transformation Applications

Abstract

Phenol resins (PRs) are considered as relatively inexpensive adsorbents synthesized from agricultural biomass via employing a variety of synthesized procedures. The performance of PR for heat transformation application is not widely investigated. In this regard, the present study aims to evaluate the four PR derivative/refrigerant pairs, namely (i) KOH6-PR/CO2, (ii) SAC-2/HFC, (iii) KOH4-PR/ethanol, and (iv) KOH6-PR/ethanol, for adsorption cooling and adsorption heating applications. Ideal cycle analyses and/or thermodynamic modelling approaches were utilized comprising governing heat and mass balance equations and adsorption equilibrium models. The performance of the AHP system is explored by means of specific cooling energy (SCE), specific heating energy (SHE), and coefficient of performance (COP), both for cooling and heating applications, respectively. It has been realized that KOH6-PR/ethanol could produce a maximum SCE of 1080 kJ/kg/cycle and SHE of 2141 kJ/kg/cycle at a regeneration temperature (Treg) and condenser temperature (Tcond) of 80 °C, and 10 °C, respectively, followed by KOH4-PR/ethanol, SAC-2/HFC-32, and KOH6-PR/CO2. The maximum COP values were estimated to be 1.78 for heating and 0.80 for cooling applications, respectively, at Treg = 80 °C and Tcond = 10 °C. In addition, the study reveals that, corresponding to increase/decrease in condenser/evaporator pressure, both SCE and SHE decrease/increase, respectively; however, this varies in magnitude due to adsorption equilibrium of the studied PR derivative/refrigerant pairs.

Publication DOI: https://doi.org/10.3390/ma16155262
Divisions: College of Engineering & Physical Sciences > School of Engineering and Technology > Mechanical, Biomedical & Design
Additional Information: Copyright © 2023 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative CommonsAttribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/). Funding Information: This work was supported by Researchers Supporting Project number (RSP2023R100), King Saud University, Riyadh, Saudi Arabia. Authors acknowledge financial support from Abu Dhabi University’s Office of Research and Sponsored Programs. This research work has been carried out in the Department of Agricultural Engineering, Bahauddin Zakariya University, Multan-Pakistan with the support of the BZU-ORIC Project (2020-21).
Uncontrolled Keywords: ideal cycle,phenol resins,specific cooling energy,specific heating energy,Condensed Matter Physics,General Materials Science
Publication ISSN: 1996-1944
Last Modified: 07 Oct 2024 07:50
Date Deposited: 01 Sep 2023 15:20
Full Text Link:
Related URLs: http://www.scop ... tnerID=8YFLogxK (Scopus URL)
https://www.mdp ... 1944/16/15/5262 (Publisher URL)
PURE Output Type: Article
Published Date: 2023-08
Published Online Date: 2023-07-26
Accepted Date: 2023-07-21
Authors: Asfahan, Hafiz M.
Sultan, Muhammad
Farooq, Muhammad
Riaz, Fahid
Ibrahim, Sobhy M.
Ahamed, Md Shamim
Imran, Muhammad (ORCID Profile 0000-0002-3057-1301)

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