doi: 10.3850/978-981-08-7614-2_IMPRES086


Influences of Adsorbent Structures on Adsorption Cooling Cycle Performances


A. Chakraborty1,a, K. C. Leong1, K. Thu2, B. B. Saha3 and K. C. Ng2

1School of Mechanical and Aerospace Engineering, Nanyang Technological University 50 Nanyang Avenue, Singapore 639798.

aAChakraborty@ntu.edu.sg

2Department of Mechanical Engineering, National University of Singapore, 9 Engineering Drive 1, Singapore 117576

3Mechanical Engineering Department, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan

ABSTRACT

We have developed a thermodynamic framework from the rigor of thermodynamic property fields to calculate the coefficient of performance (COP) of adsorption cooling cycles for various pore widths and pore volumes of adsorbents. Employing the proposed formulations, the COP of silica gel-water based adsorption cooling cycle is computed for various pore sizes of silica gels and these results are compared with experimental data. It is found from simulation that the COP of adsorption cooling cycle is influenced by the physical characteristics of silica gels and the characteristics energy of silica gel + water. The present study confirms that there exists a special type of silica gel having optimal physical characteristics that allows us to obtain the best performance in terms of COP.

Keywords: Adsorption, Silica gel-water, Activated carbon, Transient mathematical model, Cooling cycle, Performance.



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