TY - GEN
T1 - Calcium ion-exchanged zeolite 13X
T2 - 3rd International Conference on Sustainability in Energy and Buildings, SEB'11
AU - Chan, K. C.
AU - Chao, Christopher Y.H.
PY - 2012
Y1 - 2012
N2 - 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.
AB - 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.
UR - http://www.scopus.com/inward/record.url?scp=84862574874&partnerID=8YFLogxK
U2 - 10.1007/978-3-642-27509-8_47
DO - 10.1007/978-3-642-27509-8_47
M3 - Conference article published in proceeding or book
AN - SCOPUS:84862574874
SN - 9783642275081
T3 - Smart Innovation, Systems and Technologies
SP - 569
EP - 579
BT - Sustainability in Energy and Buildings - Proceedings of the 3rd International Conference on Sustainability in Energy and Buildings, SEB'11
Y2 - 1 June 2011 through 3 June 2011
ER -