分液冷凝设备-有机朗肯循环系统全工况分层次耦合集成优化

项目名称： 分液冷凝设备-有机朗肯循环系统全工况分层次耦合集成优化

项目编号： No.51476037

项目类型： 面上项目

立项/批准年度： 2015

项目学科： 能源与动力工程

项目作者： 罗向龙

作者单位： 广东工业大学

项目金额： 80万元

中文摘要： 冷凝器是有机朗肯循环（ORC）的核心设备，以系统目标驱动的冷凝过程强化和冷凝设备结构优化对提升ORC系统综合性能具有重要贡献；鉴于考虑ORC冷凝设备过程强化的系统综合集成优化问题的复杂性和建模求解的难度，项目建立由冷凝过程强化-冷凝设备结构优化-设备/系统耦合-系统全工况集成优化组成的多层次分解协调的建模和评价体系；以ORC系统评价指标为导向，研究分液冷凝过程强化方法；应用数学规划法建立分液冷凝器内部流程结构和几何参数同步优化数学模型，基于GAMS开发混合整数非线性规划（MINLP）模型求解算法；研究设备-系统层次间耦合方法，建立ORC设备结构参数和系统操作参数全工况多准则多层次集成优化模型并借助GAMS开发分解协调求解策略；该项目的研究将进一步扩展分液冷凝基础理论及其过程强化方法，为ORC换热器强化提供理论支持，为ORC从设备结构优化到系统全工况耦合集成提供系统的建模理论和求解策略。

中文关键词： 分液冷凝器；有机朗肯循环；多层次；多准则；集成优化

英文摘要： Condenser is a key component of the Organic Rankine Cycle (ORC). The heat transfer enhancement and structure optimization of condenser would make great contribution to the improvement of the overall performance of ORC. It is well known that the global optimization of ORC incorporating heat exchange equipment enhancement is complicated and difficult to be solved. Therefore, in this project, the global optimization problem is decomposed into several sub-problems that are heat exchange enhancement design method, equipment structure optimization, coupling of equipment and system, and ORC system global optimization. A modeling and evaluation framework is established to direct the modeling and solving of the sub-problems as well as total coupling and integration system. The heat exchange enhancement design method is proposed according to the target of ORC system. The simultaneous structure and parameter optimization mathematical programming model of vapor-liquid separation condenser is formulated. A solving algorithm is developed based on GAMS to solve the formulated non-convex mixed integer nonlinear programming model. Then, the coupling and integration of equipment structure optimization model and system global optimization is conducted. A multi-criteria multi-hierarchy design model for the optimization of system operation parameter and equipment structure parameter is formulated. A decomposition and coordination solving strategy is developed to solve the multi-hierarchy coupling model. The research of the project would expand the vapor-liquid separation theory, provide heat exchange enhancement theory guidance for the condenser of ORC, and provide systematic modeling theory and solving strategy for the equipment structure optimization and system global optimization.

英文关键词： Vapor-liquid separation condenser;Organic Rankine Cycle;Multi-hierarchy;Multi-criteria;Integrated optimization