| With the development of Chinese society and economy,in order to improve people’s living standards,central air conditioning in large public buildings have become the basic configuration,the number of central air-conditioning system is also rising.In large public buildings in the annual energy consumption,lighting,power and other power consumption is basically stable,while cooling,heating energy consumption fluctuates with the seasons.Therefore,the power consumption is higher than the cooling season transition season,visible air conditioning and refrigeration system energy consumption accounts for a sizable proportion of building energy consumption,increase cooling season power accounted for about 30% of total electricity consumption in summer.For large public buildings,the energy consumption of central air conditioning systems in public building energy consumption accounts for a very large proportion,about 40% to 60%,therefore,energy saving and energy-saving central air-conditioning system becomes to the subject of research in recent years.Through field research,collection,sorting and statistics operational data of a large commercial plaza central air conditioning system in Guangzhou City in 2015,analysis and out of the running current chillers,loading rate,evaporating pressure,condensing pressure and chilled water systems,cooling water system water temperature and other operating parameters,the impact on energy-saving central air conditioning system operation,which aims to understand the current situation of energy consumption of central air conditioning,air-conditioning system to identify the design,construction and operation of the existing problems,and propose targeted solutions and recommend solutions for transformation to be taken to conduct a feasibility and economic analysis,the choice of practical and cost-effective rehabilitation programs,not only to meet the energy saving requirements of the country,customers can also save operating costs. |
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