Cumulative exergy analysis of ice thermal storage air conditioning system

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• 作者：Jing Pu^a ; ^b ; Guilian Liu^a ; ^{guilianliui@mail.xjtu.edu.cn} ; Xiao Feng^a
• 关键词：Ice thermal storage ; Air conditioning ; Cumulative exergy ; Peak regulating
• 刊名：Applied Energy
• 出版年：2012
• 期刊代码：2_03062619
• 类别：pw
• 出版时间：May, 2012
• 卷：93
• 期：Complete
• 页码：564-569
• 文件大小：605 K

摘要

Based on the cumulative exergy analysis method, the effect of incorporating the Ice Thermal Storage (ITS) air conditioning system in power supply is analyzed. Not only the cumulative exergy of air conditioning system is considered, but also that of the processes consuming the power generated by the same peak regulating unit. The results show that the total cumulative exergy consumption of all processes consuming the power supplied by the peak generating unit, increases as the ITS system is applied. However, the average cumulative exergy variation, which is the ratio between the increment of the cumulative exergy consumption (螖CEx) and the cooling load of the ITS system (Q_ITS), decreases slightly as Q_ITS increases. It exhibits a linear relationship with the operating load of the power generating unit and Q_ITS. And, it decreases as either of the two parameters increases. These results are verified by two case studies.