冰蓄冷空调技术在北京地区运行的经济性分析.docVIP

冰蓄冷空调技术在北京某工程应用的经济性分析 摘要：冰蓄冷空调系统可以使电力负荷“移峰填谷”，缓解季节性能源供应紧张，是一种具有广阔应用前景的空调技术。但由于影响其综合经济性的因素比较复杂,还没有得到广泛的应用。本文针对此问题进行了分析研究。首先运用DeST软件,对北京市某建筑空调负荷进行了动态的模拟计算，并在此基础上进行了设备的选型。然后通过优化控制的方法，用matlab和lingo软件，对其运行的经济性进行了分析。最后通过北京某工程实例进行分析计算，得到了其空调季的运行费用，并和常规的空调系统进行了对比，说明了在北京地区采用冰蓄冷技术，可以节省运行费用30%以上，因此具有广阔的发展前景和很高的推广应用价值。 关键词：冰蓄冷空调系统；优化控制；电价；运行经济性分析；蓄冰率 Economical analysis of technique of ice-storage applied in a project of Beijing ABSTRACT ice storage air-conditioning system is a new technology to make balance of the electric supply, which relax the tension of the energy supply, and reduce the investment and running of air-condition system. this system has vast developmental outlook. But the affects of economic and optimization to ice storage air-condition system are very complex, it has not been used widespread. So the study on economic analysis and optimization to ice storage air-conditioning system is on the paper. In the first step of the study, the cooling load was calculated by DeST, and the equipment was chosen based on it. In the next step, the study on economic analysis and optimization to ice storage air-conditioning system was analyzed by Matlab and lingo. Finally, a project of beijing was analyzed and the running cost of air condition season was gained. By comparing the results between the ice storage system and the general system, a great mount of running cost was saved by ice storage system in Beijing area, which has vast developmental outlook. KEYWORD: ice storage air-conditioning system; optimal control; expense of electricity; economical analysis charged rate； 1. 引言: 冰蓄冷系统可以削减电负荷高峰,缓解电力紧张,减少电力建设投资。因此自80年代初至今在美国、日本得到了广泛应用。目前我国不少省市已实施分时电价，以鼓励用电单位在负荷低谷时用电，北京等一些城市更是明确规定利用电力制冷的单位必须安装冰蓄冷系统，否则将控制高峰用电量。 由于影响冰蓄冷空调系统经济性的因素较为复杂，现有的经济性分析与优化的研究还不够深入，本文正是针对此问题展开研究工作，就冰蓄冷空调系统进行经济性分析与系统优化研究。通过对工程实例的分析计算，确定系统的最佳设计方案，同时计算出冷槽释冷与冷机供冷负荷分配的最优解，为系统经济运行提供参考。 2. 空调负荷的计算 对蓄冰空调系统进行技术经济分析评估, 首先需要进行详细的负荷计算: ①根据典型日空调负荷计算确定蓄冰率，并在此基础上进行设备的选型；②计算全年供冷季的动态负荷, 作为对系统能耗及运行电费分析的基础。 DeST软件是进