Analysis On Air-conditioning Energy-saving Of Shopping Building In Summer Hot And Winter Warm Region

Public building energy conservation, in which HVAC system plays an important part, is a systemic engineering. The construction and air-conditioning's energy conversation is based on the research, development and implementation of energy conversation technology. The support of relating government departments is the guarantee which improves energy conservation, environment and society benefit sharply, promoting economy to develop fast.In this paper, the air-condition design optimizing energy conversation in summer hot and winter warm region is researched by unifying the reality and the theory. In the second chapter of this paper, at first, it analyzes the factors which affect the air- conditions'cooling load, and then, it analyzes the hot working performance parameters and construction lightings'influence on energy consumption, proposing the energy conversation design measurement of surrounding structure, lighting, and fresh air load. In the meantime, personnel density's affection to fresh air load is also included.The third chapter is about optimizing energy conversation through air-conditioning design, unifying Nanning's weather condition and emporium features. It expatiates how to optimize aeration design though analyzing the characteristics of natural ventilation and the indoor air quality in the emporiums, combining the energy conversation criterions and the shopping malls features. Through the original principles that how the fresh air exchanges total hot with the exhausted air, the application of energy conversation has been discussed and the whole heat recovery design's implementation is proposed. This paper elaborates energy conversation mechanism of large difference in temperature in air-conditioning water system. So variable water volume of air-conditioning freezing water system can be designed optimizes. Furthermore, the paper elaborates the energy conversation mechanism and the methods of variable frequency pump's operation. So chilled water pump can be operated by variable frequency.The shopping mall being in service in Nanning is took as an example, in the 4th chapter, according to the cold source energy consumption research, test results and energy analysis in the building, air-conditioning energy consumption and energy conversation are analyzed. The proposal of the cold source rectification plan management of the shopping center is putted forward. Based on the building energy conversation design standards of the relevant codes, the author puts forward some energy conversation measures. Cooling load is calculated in the case of different envelope structures. When designing the constructions'outside elevation, the designer should minimize the east and west window areas, or use smaller sunshade glass-making windows in this orientation. In the case, some factors, which are lighting loads, staff density, fresh air load, entire heat exchange, chilled water system of large difference in temperature and chilled water pump of variable frequency, are analyzed by the way that how to influence the air-conditioning cooling load. In the case analysis, according to the software and simplified conditions, the result of cooling load is caused by the different influence factors. So using optimization programs of air-conditioning, the paper demonstrated the feasibility of energy conversation in air-conditioning.Through the analysis above, the paper expound the importance and feasibility air-conditioning energy conversation design. There is an important guide and reference value on the energy-efficient design and the operation of public buildings in this paper.