Research on Evaluation Method of Low-Energy Consumption Technical Scheme for Buildings Based on Grey AHP

摘要

The grey analytic hierarchy process is introduced to evaluate the different low-energy consumption technical scheme for buildings in China to give practical advices for owners, contractors and related departments of government on how to select the most feasible one, from three main aspects - technology, economy and environmental influence. Firstly, the integrated grey evaluation model is founded, the typical grey evaluation object set and evaluation object factor set are chosen and then the optimal index set can be determined. Secondly, the relational coefficient of the factors of the evaluated technical scheme and the optimal index set is confirmed by the grey relational analysis method. Thirdly, the weight coefficient is calculated by the AHP for improving the reliability and objectivity of the evaluation results, and then the grey comprehensive evaluation of different low-energy consumption technical scheme for buildings is completed by weighted summation. Finally, the best technical scheme to reduce the energy consumption of buildings is obtained according to the rule of maximum grey relational grade. As an example, several typical low-energy consumption technical schemes for buildings are compared and evaluated. And the result shows that this method is of high precision and can give reliable footing for the selection of lowenergy consumption technical scheme for buildings.