TY - JOUR
T1 - Performance comparison of three-bed adsorption cooling system with optimal cycle time setting
AU - Rahman, Abul Fazal Mohammad Mizanur
AU - Miyazaki, Takahiko
AU - Ueda, Yuki
AU - Saha, Bidyut Baran
AU - Akisawa, Atsushi
PY - 2013/9/26
Y1 - 2013/9/26
N2 - This article presents the optimal cycle time and performance of two different types of silica gel-water-based three-bed adsorption chillers employing mass recovery with heating/cooling scheme. A new simulation program has been developed to analyze the effect of cycle time precisely on the performance of the systems. The particle swarm optimization (PSO) method has been used to optimize the cycle time and then the optimum performances of two chillers are compared. Sensitive analysis of cycle time has been conducted using the contour plot of specific cooling power (SCP) with driving heat source temperature at 80°C. It is found that the center point of the contour indicates the maximum SCP value and optimal cycle time, which are comparable with the quantitative values obtained for the PSO method. Both three-bed mass recovery adsorption cycles can produce effective cooling at heat source temperature as low as 50°C along with a coolant at 30°C. The optimal SCP is similar for both cycles and is greater than that of the conventional two-bed adsorption system employing the same adsorbent-refrigerant pair. Consequently, the proposed comparison method is effective and useful to identify the best performance of adsorption cycles.
AB - This article presents the optimal cycle time and performance of two different types of silica gel-water-based three-bed adsorption chillers employing mass recovery with heating/cooling scheme. A new simulation program has been developed to analyze the effect of cycle time precisely on the performance of the systems. The particle swarm optimization (PSO) method has been used to optimize the cycle time and then the optimum performances of two chillers are compared. Sensitive analysis of cycle time has been conducted using the contour plot of specific cooling power (SCP) with driving heat source temperature at 80°C. It is found that the center point of the contour indicates the maximum SCP value and optimal cycle time, which are comparable with the quantitative values obtained for the PSO method. Both three-bed mass recovery adsorption cycles can produce effective cooling at heat source temperature as low as 50°C along with a coolant at 30°C. The optimal SCP is similar for both cycles and is greater than that of the conventional two-bed adsorption system employing the same adsorbent-refrigerant pair. Consequently, the proposed comparison method is effective and useful to identify the best performance of adsorption cycles.
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U2 - 10.1080/01457632.2012.753571
DO - 10.1080/01457632.2012.753571
M3 - Article
AN - SCOPUS:84875387201
VL - 34
SP - 938
EP - 947
JO - Heat Transfer Engineering
JF - Heat Transfer Engineering
SN - 0145-7632
IS - 11-12
ER -