Study on the Energy System of Ice Storage Air Conditioning of China World Trade Center Phase 3 by the Method of ‘Local-Global Optimization’

Abstract

This article adopts the method of ‘Local-Global optimization’ to analyze the energy system of ice storage air conditioning of China World Trade Center Phase 3 by the tool of eQuest energy consumption simulation software. We found the influential factors of the air conditioning system through the actual measurement and simulation analysis results of energy consumption of air conditioning system. Then we adopt the method of ‘Local-Global optimization’ from the Angle of energy system and combine with the actual condition of the ice storage air conditioning, we make three optimization scheme, which are reducing cooling water temperature difference, adopting variable flow rate chilled water pumps, and improving the fan delivery ratio. And then we analyze energy consumption change of three schemes and find out the interactive effect of the local system. Finally, we sort the energy saving effect and find out the optimal overall optimization scheme.