作　　者： ; ;

机构地区： 华南理工大学化学与化工学院传热强化与过程节能教育部重点实验室

出　　处： 《石油学报（石油加工）》 2000年第3期70-78,共9页

摘　　要： 火甬经济学是火甬 (有效能 )分析与技术经济学相互结合而产生的一门新型交叉学科。笔者根据过程系统的用能特点 ,以三环节模型为基础 ,将过程系统分解成 3个子系统进行分解优化 ,导出了 3个子系统的经济平衡式以及各自的优化目标函数 ,给出了各自的优化策略——核心的能量利用子系统的目的主要是完成物料产品的升值 ,应同时包括物料与能量的优化 ,通过目标函数与约束条件的火甬经济化 ,将两者有机地结合起来 ;能量转换与回收子系统主要涉及不同种类能量之间的变化 ,应用能量系统优化的策略来进行优化。最后介绍了以火甬经济学为基础的过程系统全局优化策略方法 ,并通过某芳烃分离系统的优化改进实例来说明过程系统火甬经济优化的途径与策略。 Exergy is the capacity of a system to do the useful work to the outside under the conditions imposed by a given environment Exergoeconomics is a new interdisciplinary subject generated from the integration of the exergy analysis and the technical economics Based on the three link model,the process system is divided into three subsystems for its optimization The optimization objectives for these three subsystems from their exergoeconomic balance equations are derived when they are optimized separately The optimization strategies for each subsystem are proposed It is pointed out that the purpose of the key energy use subsystem is to fulfill the value increase of its material products and that the optimization objective must contain both material and energy targets simultaneously Two targets may be integrated thoroughly by means of the exergoeconomics of optimization objectives and corresponding constraints Since the energy conversion subsystem and the energy recovery subsystem mainly involve the change of different types of energy,the optimization strategies of energy systems are used for their optimization Finally,the exergoeconomic strategies are introduced for optimization of total process system An aromatic hydrocarbon separating unit has been analyzed and optimized to demonstrate the exergoeconomic optimization strategies for process systems

关 键 词： 过程系统 系统优化 经济学 优化策略 化工过

领　　域： [化学工程]