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Experimental adsorption equilibrium study and comparison of zeolite with water and ethanol for cooling systems

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Abstract

Two adsorption refrigeration working pairs of zeolite with water and ethanol were studied and the parameters of Dubinin-Astakhov model were regressed using the experimental data of equilibrium. The coefficient of heterogeneity varied from 1.305 to 1.52 for the zeolite-water pair and from 1.73 to 2.128 for zeolite-ethanol pair. The maximum adsorption capacity varied from 0.315 to 0.34 for zeolite-water and 0.23 to 0.28 for zeolite-ethanol, respectively. The results showed that the zeolite-water pair is suitable for solar energy cooling not only because of the high latent heat of vaporization of water but also because of the better equilibrium performance. On the other hand, zeolite-ethanol gives a high adsorption capacity at high regeneration temperature, which means it can be used in heat engine systems like buses and cars.

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Authors and Affiliations

  1. Institute of Refrigeration and Cryogenics, Zhejiang University, Hangzhou, 310027, China

    Maiga Abdoulaye Siddeye, Chen Guang-ming & Wang Qin

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  1. Maiga Abdoulaye Siddeye
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  2. Chen Guang-ming
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  3. Wang Qin
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Correspondence to Chen Guang-ming.

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Ph D student at Zhejiang University from Mali

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Maiga, A.S., Chen, Gm. & Wang, Q. Experimental adsorption equilibrium study and comparison of zeolite with water and ethanol for cooling systems. J. Zhejiang Univ. - Sci. A 8, 216–220 (2007). https://doi.org/10.1631/jzus.2007.A0216

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  • DOI: https://doi.org/10.1631/jzus.2007.A0216

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