An Analysis of Allocation Plan for Urban Complex Air Conditioning Cold and Heat Sources in Severe Cold Regions Area

Yi-dan ZHU, Chun-qing WANG, Dong-dong CAO, Ren-qiang HUANG, Hai-bin LI

Abstract


According to the climate characteristics of severe cold area, the buildings function and the status quo of the architecture energy resources, this paper have researched a scheme of a certain urban complex air conditioning cold and heat sources relatively in Changchun. It analyzed dynamic load of annual building air conditioning, and calculate the energy consumption for two types of configurations in air-condition cold and heat sources schemes.It also synthetically analyzed the factors such as initial investment, operating cost, comfort and stability. The result shows that electrical refrigeration combined with gas-fired hot water boiler system is superior to direct-fired combined with gas-fired hot water boiler system when the architectural scale is larger and when it needs providing air conditioning and hot water. With the rapid development of China's economy, urban complex with high efficiency and multi-function is springing and thriving. In the large commercial complex, air conditioning cold and heat source is the core of the whole air conditioning system. It’s significant to optimize the energy in air conditioning cold and heat sources system for reducing building energy consumption in commercial complex.

At present, HVAC technology is developing rapidly, the performance of cold and heat source unit is continuously improving, and unit configuration is gradually perfected. In the construction engineering design of the urban complex, it is an extreme problem of how to choose reasonable the scheme of the air conditioning cold and heat sources according to the architectural features for the engineering designers. There has been a lot of researches about the scheme of air conditioning cold and heat sources [1][2][3], in this paper, we will optimize the scheme of commercial complex of air conditioning cold and heat source in a typical city—Changchun City, which is located in the cold area. This paper analysed two different designs of cold and heat source system based on the annual dynamic of buildings, and makes an analysis and comparison on the initial investment, operation cost etc., we aimed to find the scheme of the air-conditioning cool and heat sources most suitable for the region of the type of which is most suitable for the region and the type of building.


Keywords


Severe cold area, Urban complex, Cooling and heating source, Optimal design


DOI
10.12783/dteees/eccsd2016/5850

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