蓄冷供冷系统的节能效益分析
Analysis on energy saving effects of cool storage cooling systems
摘要：
电网在峰谷平不同时段的供电煤耗不同，尽管蓄冷供冷系统比没有蓄冷的常规供冷系统总耗电量高，但是总耗煤量低，表明在大电网系统范围内，蓄冷供冷系统有节能效益。从峰谷平不同时段节约耗煤量出发，提出了等效系统COP的计算模型，为蓄冷与不蓄冷空调系统进行能效比较提供依据。计算表明，前海区域供冷3号站设计全年系统COP为4.25，考虑蓄冷的节能效益，全年等效系统COP达到4.91。
Abstract：
The power grid has different coal consumption during different periods of flat, peak and valley. The energy consumption of the cooling system with cool storage is higher than that of without cool storage in terms of electricity consumption, while lower in terms of coal consumption from the grid point of view, indicating that the cool storage is an energy saving process for the cooling system. Based on the different coal consumptions per kWh electricity generation during flat, peak, and valley periods, develops an equivalent model of coefficient of performance (COP) for the comparison of the cooling systems with and without cool storage. An example calculation for the cooling system with cool storage shows that the normal COP is 4.25, while the equivalent COP is 4.91, which reflects the energy saving effect of cool storage.
Keywords:coolstorage,cooling,energysaving,peakshavingandvalleyfilling,coefficientofperformance(COP)