Synthèse et caractérisation d'un composite de gel de silice avec des liants polymères pour des applications de refroidissement par adsorption

Translated title of the contribution: Synthesis and characterization of silica gel composite with polymer binders for adsorption cooling applications

Mohamed M. Younes, Ibrahim I. El-sharkawy, A. E. Kabeel, Kutub Uddin, Animesh Pal, Sourav Mitra, Thu Kyaw, Bidyut Baran Saha

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

The motivation of the present paper is to synthesis high packing density and thermal conductivity consolidated composite using silica gel powder (SGP) almost without affecting its porous properties. The effect of packing density, binder type and amount on porous properties as well as thermal conductivity were studied. Four types of binder, namely Hydroxyethyl cellulose (HEC), Polyvinyl alcohol (PVA), Polyvinyl pyrrolidone (PVP) and gelatin were chosen. SGP composite with PVP 2 wt% as binder showed better performance for both porous and thermal properties. Thermal conductivity for PVP 2 wt% composite was found 32% higher than SGP. Adsorption uptake of water onto SGP and PVP 2 wt% composite at 30–70 °C adsorption temperatures were measured using gravimetric method. Tóth equation is found suitable to fit the isotherm data. Results showed that there is no change in water adsorption uptake between SGP and PVP 2 wt% composite whereas the volumetric uptake increased by 12.5% for the composite. The studied composites were found to be suitable for designing high performance adsorption cooling systems.

Original languageFrench
Pages (from-to)161-170
Number of pages10
JournalInternational Journal of Refrigeration
Volume98
DOIs
Publication statusPublished - Feb 1 2019

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Silica gel
Binders
Cooling
Adsorption
Composite materials
Polymers
Powders
Thermal conductivity
Polyvinyl alcohols
Cooling systems
Isotherms
Water
Cellulose
Thermodynamic properties

All Science Journal Classification (ASJC) codes

  • Building and Construction
  • Mechanical Engineering

Cite this

Synthèse et caractérisation d'un composite de gel de silice avec des liants polymères pour des applications de refroidissement par adsorption. / Younes, Mohamed M.; El-sharkawy, Ibrahim I.; Kabeel, A. E.; Uddin, Kutub; Pal, Animesh; Mitra, Sourav; Kyaw, Thu; Saha, Bidyut Baran.

In: International Journal of Refrigeration, Vol. 98, 01.02.2019, p. 161-170.

Research output: Contribution to journalArticle

Younes, Mohamed M. ; El-sharkawy, Ibrahim I. ; Kabeel, A. E. ; Uddin, Kutub ; Pal, Animesh ; Mitra, Sourav ; Kyaw, Thu ; Saha, Bidyut Baran. / Synthèse et caractérisation d'un composite de gel de silice avec des liants polymères pour des applications de refroidissement par adsorption. In: International Journal of Refrigeration. 2019 ; Vol. 98. pp. 161-170.
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