Calcium Ion-Exchanged Zeolite 13X: Properties Measurement and Potential Usage in Solar Adsorption Cooling Systems

  • K. C. Chan
  • Christopher Y. H. Chao
Part of the Smart Innovation, Systems and Technologies book series (SIST, volume 12)

Abstract

Ca-ion exchanged zeolites were synthesized from zeolite 13X and calcium chloride in this study. XRF, TGA and BET were used to measure the adsorption related properties of the Ca-ion-exchanged zeolites. The influence of the synthesis conditions of the zeolites and the potential usage of them in solar adsorption cooling systems were investigated. 0.27g/g of difference in equilibrium water uptake between two operation conditions was recorded, which has 17.8% improvement compared with pure zeolite 13X. Ideal Coefficients of Performance (COP) and Specific Cooling Power (SCP) for an adsorption cooling system using the Ca-ion-exchanged zeolites were also estimated. The increase of ideal COP was not much, 2.4%, but the improvement of the actual COP was predicted to be up to 70% by reducing the large unwanted energy loss generally experienced in actual systems. The ideal SCP was also found to be 504 W/kg, increased by 22.2%. This suggests that this Ca-ion-exchanged zeolite can be used in solar adsorption cooling system with much better performance than zeolite 13X.

Keywords

Total Pore Volume Impregnation Time Calcination Time Composite Adsorbent Desiccant Wheel 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer-Verlag Berlin Heidelberg 2012

Authors and Affiliations

  • K. C. Chan
    • 1
  • Christopher Y. H. Chao
    • 1
  1. 1.Department of Mechanical EngineeringThe Hong Kong University of Science and TechnologyKowloonHong Kong

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