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《Journal of Safety and Environment》 2005-06
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Optimization of energy structure in eco-urban construction

ZHAO Wei,YANG Zhi-feng,LI Wei(State Key Joint Laboratory of Environmental Simulation and Pollution Control,School of Environment,Beijing Normal University,Beijing 100875,China)  
The present paper intends to report the authors' study on the approach to optimization of energy structure in eco-urban construction.So far as we know,there indeed exists the complexity of energy types and diversities of energy consumption of economic sectors.The current energy structure diversity can also acts as a measure of deciding how evenly energy is distributed across channels in urban economical system.Changes in diversity of energy structure in some regions over time determine the direction of their economic evolution.Therefore,this paper first of all has given a highly systematic analysis on the diversity of energy supply structure and its consumption demand structure in eco-city based on the information entropy.Then,it has described and reviewed the evaluation criteria for the optimization of energy system structure,which should indeed be improved when the diversity of energy system structures is to be evaluated.The paper thinks it necessary to satisfy the restraint of environmental capacity and ecological efficiency.To make the research more persuasive,the authors took Xiamen City as a case for our study so as to put forward and assess the controlling effects of optimizing energy system structure compared with the spontaneously changing trends of such structure known as the basic scenario.The results show that,with the basic scenario,the diversity of energy supply structure in Xiamen would be decreasing,whereas the consumption demand structure would be worsening,especially before 2015.If so,the evaluation standards for optimization won't be reached.And,the future energy system structure of Xiamen after 2010 wouldn't be better than that it is now if there were no effective control measures taken,including the increase of ecological efficiency of energy consumption with natural gas being the main energy form,and development and utilizing the new and regenerative energy,saving the energy consumption of traffic.Therefore,it is of great urgency to set more strict rules to protect the environment and heighten the ecological efficiency.All in all,the optimizing measures will be the basis of eco-urban construction.
【Fund】: 国家重点基础研究发展计划(973)(2005CB724204);; 高等院校优秀青年教师教学科研奖励计划
【CateGory Index】: F426.2
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