基于线性规划法的屋面雨水箱容积优化模型  

Study on optimization model of rainwater harvesting tank volume on roof based on linear programming

作　　者：朱培元 傅春[1,2] ZHU Peiyuan;FU Chun(School of Civil Engineering,Nanchang University,Nanchang330031,China;School of Management,Nanchang University,Nanchang330047,China)

机构地区：[1]南昌大学建筑工程学院,江西南昌330031 [2]南昌大学管理学院,江西南昌330047

出　　处：《人民长江》2018年第4期43-48,共6页Yangtze River

基　　金：教育部人文社科重点课题"中国地区生态文明建设领先路径研究"(15JJD790040);江西省研究生创新专项资金项目"建设生态海绵城市--城市水系对雨水资源化利用研究"(YC2015-S014)

摘　　要：屋面雨水收集系统中最重要的可变参数是水箱容积,影响水箱优化容积的因素包括降雨数据、屋顶汇水面积、居民人数以及用水量等。采用线性规划法构建了对屋面雨水收集系统水箱体积的优化模型,以整个雨水系统寿命周期内的可变经济收益最大化作为目标函数,确定约束条件,并以南昌市为例进行模拟。模拟结果表明:不受市场调控的过低水价会使系统没有经济效益;屋顶汇水面积和月用水量是水箱优化容积的限制因素,在住宅楼中一般是屋顶汇水面积;在高层建筑和商业建筑上设置屋面雨水收集系统的经济效益会更高。The most important variable parameter of a roof rainwater harvesting system is the tank volume and the optimized factors for the tank volume including rainfall,roof catchment area,number of residents and water consumption,etc.An optimization model to determine the tank size of the roof rainwater harvesting system was constructed by the linear programming method.With the maximum variable economic benefits in the life cycle of the system as the objective function,the constraint conditions were determined and the data of rainfall in Nanchang was simulated by the model.The calculation results show that excessive low water price without market regulation could make it difficult to acquire economic benefits;either the roof catchment area of buildings or monthly water consumption was the limit factor to the tank size,and usually the roof catchment area is the limit factor for residential buildings;the roof rainwater harvesting systems in high-rise buildings or commercial buildings could acquire more financial benefits.

关 键 词：线性规划法 水箱容积 优化模型 屋面雨水收集系统 南昌市 

分 类 号：P33[天文地球—水文科学]