Activated carbon-graphene nanoplatelets based green cooling system: Adsorption kinetics, heat of adsorption, and thermodynamic performance

Mahua Jahan Rupa, Animesh Pal, Bidyut Baran Saha

Research output: Contribution to journalArticle

Abstract

This study presents the adsorption kinetics and thermodynamic analysis of green cooling systems employing activated carbon-graphene composite/ethanol pairs. Instantaneous adsorption uptake of these pairs is experimentally measured at various adsorption and evaporation temperatures. The measured data are fitted with the widely used two kinetics models; viz., Fickian diffusion (FD) and linear driving force (LDF) models and between them LDF shows better to track the behavior of the instantaneous uptake of the studied pairs. The diffusion time constant and activation energy are determined for all pairs. Uptake and temperature dependency heat of adsorption is also analyzed. The thermodynamic performance parameters have been computed employing time-independent cooling cycle at three evaporation temperatures of 5, 10, and 15 °C with a function of different heat source temperatures. Theoretical analysis demonstrates that the composite/ethanol pairs possess high cooling effect which will provide notable direction to develop next-generation cooling systems.

Original languageEnglish
Article number116774
JournalEnergy
Volume193
DOIs
Publication statusPublished - Feb 15 2020

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Cooling systems
Activated carbon
Graphene
Thermodynamics
Adsorption
Kinetics
Evaporation
Ethanol
Cooling
Temperature
Composite materials
Activation energy
Hot Temperature

All Science Journal Classification (ASJC) codes

  • Civil and Structural Engineering
  • Building and Construction
  • Pollution
  • Mechanical Engineering
  • Industrial and Manufacturing Engineering
  • Electrical and Electronic Engineering

Cite this

Activated carbon-graphene nanoplatelets based green cooling system : Adsorption kinetics, heat of adsorption, and thermodynamic performance. / Rupa, Mahua Jahan; Pal, Animesh; Saha, Bidyut Baran.

In: Energy, Vol. 193, 116774, 15.02.2020.

Research output: Contribution to journalArticle

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