| Based on the background of the world's environment problems and our energy situation, the paper proposed the urgency of transfering energy saving technology of building from research period to large-scale application period. The problems and their causes existed in the application process of building energy conservation technology at home were analysed. However, the research on suitable technology's screening is so rarely that selecting of technology has such great blindness. It is necessary to establish a set of screening method and mode for energy saving technology of building, providing reference for country and relevant departments in some areas'promotion work, guiding the region planning and the investors to make technology decisions.Firstly, with the discussion of implication and the selected characteristics of appropriate building energy saving technology, the conception of hierarchical selecting was presented that the screening of suitable technology was divided into two levels: region level and building level. Then the paper defined the definition of each level, discussed and compared their concrete meaning, function and mutual relationship.According to the implication and features of the region level, the selecting model was presented that the suitability in a region could be classified into four grades: suitable, generally suitable, unsuitable, obviously unsuitable by preliminary selecting and suitability's division, which could be used as reference for whether the technology was suitable to popularize in a area. Then the paper established the frame of the general indexes system, determined the calculating indexes'weight of level analysis method, and regarded the Fuzzy Comprehensive Evaluation as the way of dividing suitable grade.According to the implication and features of the building level, the selecting model was presented that the suitable technology and scheme implied in the building could be decided based on the selecting result of the region level by preliminary selecting,the selecting of best exclusion shemes,optimal decision analysis of independent schemes. Based on ideal law, the multi-objective decision analysis method to determine the optimal plan in mutually exclusive plans was adopted. Then, based on construction goal, we may establish the optimal model to decide to use which kinds of projects to solve problems.Secondly , with the theory and method of region level screening, a complete index system for the regional suitability evaluation was established , which contained five technologies: the solar energy hot water technology, natural ventilation technology, air source heat pump technology, surface water source heat pump technology, soil source heat pump technology. Then the suitability grade of the five technologies in Harbin,Beijing,Chongqing,Guangzhou and Kunming had been determined. At the same time, the validity of the screening model in region level was verified.Finally, with the theory and method of building level screening, the paper took the selecting of energy saving technology of a project in Chongqing for example, determined which kind of technology and its scheme was suitable and meet the intended goal of energy conservation and investment for the sample project, provided scientific foundation for the decision-makers to choose technology and scheme, meanwhile verified the feasibility of selected theory in building level. |
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