Journal of South China University of Technology (Natural Science Edition) ›› 2010, Vol. 38 ›› Issue (9): 113-117.doi: 10.3969/j.issn.1000-565X.2010.09.021

• Architecture & Civil Engineering • Previous Articles     Next Articles

Comprehensive Benefit Economy Model in Full Life Cycle of Water-Saving Projects for Green Building

Chai Hong-xiang  Hu Xue-bin  Peng Shu-juan   

  1. Key Laboratory of the Three Gorges Reservoir Region＇s Eco-Environment of the Ministry of Education,Chongqing University,Chongqing 400045,China
  • Received:2009-12-08 Revised:2010-03-15 Online:2010-09-25 Published:2010-09-25
  • Contact: 柴宏祥（1980-），男，博士，讲师，主要从事绿色建筑节水、污水处理与资源化研究． E-mail:chaihx@126．com
  • About author:柴宏祥（1980-），男，博士，讲师，主要从事绿色建筑节水、污水处理与资源化研究．
  • Supported by:

    国家科技部国际合作项目（2008DFA91770）; 国家水体污染控制与治理科技重大专项项目（2010ZX07317-011）

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Abstract:

By systematically analyzing the factors that influence the comprehensive benefit in the full life cycle of water-saving projects for green building,a comprehensive benefit economy model including the direct water-saving benefit,the environmental and social benefit as well as the incremental cost in the full life cycle is constructed,with the net present value as the evaluation and measurement index of comprehensive benefit.Then,the model is simulated and applied to a water-saving demonstration project for green building in West China to verify its rationality and practicality.Simulated results indicate that,in the full life cycle,the comprehensive benefit,the incremental cost and the benefit-to-cost ratio of the project reach 39.3 million yuan,9.3 million yuan and 4.2∶1,respectively,meaning that the water-saving project is of remarkable comprehensive benefit.

Key words: green building, water saving, full life cycle, incremental cost, comprehensive benefit, economy model