能源化工循环经济中类Cobb-Douglas生产函数简化及资源优化分配

发布时间：2017-12-31 22:18

本文关键词：能源化工循环经济中类Cobb-Douglas生产函数简化及资源优化分配　出处：《系统工程理论与实践》2014年03期 　论文类型：期刊论文

【摘要】：为了使能源化工循环经济工业园区在一定资源使用量下的产出最大,需要对园区内企业间进行原料资源的优化配置.分析了能源化工企业产出和各个生产要素的关系,以Cobb-Douglas生产函数为基础,构建描述循环经济中的能源化工企业生产特点的类Cobb-Douglas生产函数;为方便求解,通过进一步假设和简化得到能源化工企业产出与原料使用量的线性关系,从而将原料优化配置问题简化成可计算的线性规划问题.为不使优化后利润率低的企业分配不到资源,人为设置优化后的利润不低于原规划固定成本一定比例,称为利润下限,并以陕北锦界工业园区为例求解,在无利润下限的约束下,优化后的园区利润提高了76.0%;有利润下限的约束,优化后的园区利润提高了26.8%.将该资源优化方法应用于正在规划的循环经济园区,可得到园区产出(或利润)最大,且每个企业的利润率最高;对于已建设好的园区,由于企业生产规模不能改变,求解只可以得到园区产出(或利润)最大的结果,该方法可为正在建设或已建成的循环经济工业园区中企业间资源分配优化或企业规模优化提供借鉴.
[Abstract]:In order to make the energy and chemical recycling economic industrial park in a certain amount of resources under the maximum output. It is necessary to optimize the allocation of raw material resources among enterprises in the park. The relationship between the output of energy and chemical industry enterprises and each factor of production is analyzed based on the production function of Cobb-Douglas. Constructing the Cobb-Douglas production function to describe the production characteristics of energy and chemical enterprises in circular economy; In order to solve the problem, the linear relationship between the output of energy and chemical enterprises and the amount of raw materials is obtained by further assumption and simplification. Thus, the optimal allocation of raw materials is simplified as a computable linear programming problem. In order not to allocate the resources of the enterprises with low profit rate after optimization, the profit after artificial optimization is not lower than the fixed cost of the original plan. It is called the lower limit of profit, and takes the Jinjie Industrial Park of Northern Shaanxi as an example. Under the constraint of no lower limit of profit, the profit of the optimized park is increased by 76.0. With the restriction of the lower limit of profit, the profit of the optimized park is increased by 26.8. the maximum output (or profit) of the park can be obtained by applying the method of resource optimization to the planned circular economy park. And the profit margin of each enterprise is the highest; For the park that has been built, because the enterprise production scale can not be changed, the solution can only get the biggest result of the park output (or profit). This method can be used for reference in the optimization of resource allocation or enterprise scale optimization among enterprises in the circular economy industrial park which is under construction or has been completed.
【作者单位】：西安交通大学化学工程与技术学院;
【基金】：国家自然科学基金(20936004)
【分类号】：F426.2;F205
【正文快照】： 1引言循环经济追求经济、环境和社会协调发展,有利于实现经济低成本增长和生态环境公T.、前我国对循环经济研究持续升温,并且在一些工业园K开展循环经济试点,取得了一定的成果,但循环经济实践活动需要更多的理论探讨生产函数被用来反映特定时期内所用的各种投入要素数量与商品

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