Experimental investigation of R134a adsorption on silica gel for cooling system applications

Muhsin Kilic; Ersan Gonul

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Research Article

Experimental investigation of R134a adsorption on silica gel for cooling system applications

Muhsin Kilic*, Ersan Gonul

Department of Mechanical Engineering, Uludağ University, Bursa, Turkey

Keywords

Abstract

Adsorption cooling,

Silica Gel – R134a pair,

Enthalpy of adsorption,

Refrigeration

The aim of this study is to assess adsorption characteristics of R134a on a commercially available silica gel. Experimental study is performed by A constant volume variable pressure method is used in experimental study. Adsorption process are realized at different temperatures between 293.15 and 320.15 K and for pressures up to 500 kPa. Parameters in the Dubinin-Astakhov (DA) equation for the silica gel – R134a pair is computed by the use of measured experimental data. Adsorption isotherms are obtained by using DA equation for the silica gel – R134a pair. Further, the adsorption enthalpy are provided for the specimen investigated. It is observed that the value of the heat of adsorption is always quite higher than the vaporization enthalpy of the adsorbent in the range of 1.2 to 1.8 depending on the specific adsorbed mass of R134a. Obtained data from the present experimental study can be used for the design of cooling and refrigeration systems in which adsorption process is employed.

DOI: http://dx.doi.org/10.17515/resm2016.67me0720 Full Text

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LATEST AWARDS

2022 Reviewer Awards:

Please, visit Reviewer Awards section for the winners of the 2022 RESM reviewer awards.

Reviewer Awards section

2022 Best Paper Award:

The paper authored by Nitin Kumar, Michele Barbato, Erika L. Rengifo-López and Fabio Matta entitled as “Capabilities and limitations of existing finite element simplified micro-modeling techniques for unreinforced masonry” is awarded the

2022 Best Paper Award

2022 Most Cited Paper Award:

The paper authored by Aykut Elmas, Güliz Akyüz, Ayhan Bergal, Müberra Andaç and Ömer Andaç entitled as “Mathematical modelling of drug release" is awarded the

2022 Most Cited Paper Award.

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