综合利用水库水体能值转换率研究  

Study on energy transformation ratio of a multipurpose reservoir

作　　者：李伟楠[1] 梅亚东[1] 李析男 赵先进 LI Weinan;MEI Yadong;LI Xinan;ZHAO Xianjin(State Key Laboratory of Water Resources and Hydropower Engineering Science,Wuhan University,Wuhan 430072,China;Guizhou Water Conservancy and Hydroelectric Power Investigation,Design and Research Institute,Guiyang 550002,China)

机构地区：[1]武汉大学水资源与水电工程科学国家重点实验室,湖北武汉430072 [2]贵州省水利水电勘测设计研究院,贵州贵阳550002

出　　处：《武汉大学学报（工学版）》2020年第1期1-8,共8页Engineering Journal of Wuhan University

基　　金：国家重点研发计划项目(编号:2016YFC0401306);贵州省科技计划项目(编号:[2017]3005-5)。

摘　　要：以综合利用水库为中心的水资源工程系统为研究对象,基于水库水量和水体能量变化分析,在考虑可更新资源、不可更新资源、经济社会反馈和负产出投入能值的基础上,建立了综合利用水库的水体能值转换率、供水工程及水电站能值转换率的数学模型,并以夹岩水利枢纽及黔西北供水工程为例进行验证。实例研究表明:能值转换率的计算与水资源利用方式有关,对于兼有供水、发电的综合利用水库,应同时计算化学能及重力势能能值转换率;不同工程的水体能值转换率不同,水库水体能值转换率最低仅为7.19×10~4sej/J,毕大工程水体的能值转换率最大为1.48×10~5sej/J,总干渠、南干渠和北干渠前段的水体能值转换率居于其中,随着供水工程延伸,水体能值转换率越来越大。Taking water resources engineering system centered on the comprehensive utilization of reservoirs as the research object, this paper establishes a mathematic model of multipurpose reservoir energy transformation ratio for a water supply and hydropower generation project through analysis of energy transformation of reservoir water, and considering renewable resources, non-renewable resources, economic and social feedback and negative output of input-energy value. The model is calibrated and verified by Jiayan Water Project and the Northwest Guizhou Water Supply Project in China. The case study shows that the calculation method of energy transformation ratio is related to the way of water resources utilization. For reservoirs with both water supply and power generation, the transformation ratio of chemical energy and gravitational potential energy should be calculated at the same time. The water-energy transformation ratios of different projects are different. The energy transformation ratio of reservoir water is the lowest, only 7.19×10~4 sej/J;the energy transformation ratio of Bida Project is the highest, which is 1.48×10~5 sej/J;The energy transformation ratios of the Main Canal, the South Canal and the forepart of the North Canal are in the middle. With the extension of water supply project, the water energy transformation ratio is increasing.

关 键 词：综合利用水库 水体能值转换率 夹岩水利枢纽 黔西北供水工程 

分 类 号：X37[环境科学与工程—环境工程]