功和热是化工行业使用能源的两种最主要方式，因此研究它们的协同利用对于提高过程整体能源利用率具有重要意义。本项目针对目前过程系统分别开展功和热用能优化、缺乏有效集成措施问题，开展基于火用分析理论实现功交换网络和热交换网络同步综合的高效集成方法研究。首先，提出改进的转运模型开展功、热分步集成研究，分别以系统年度总费用最小和火用效率最大为目标建立分步综合的数学规划模型，创新性地提出功、热分步集成的求解策略和网络结构匹配规则，揭示功、热交互作用机制。其次，为解决功交换的压力约束问题，创建级内考虑功公用工程的并联式功交换网络分级超结构，为功、热同步集成奠定基础。最后，构造适用于功、热交换网络同步集成的耦合拓扑超结构，基于火用经济评价，开展协调年度总费用与火用效率的多目标系统优化研究，探讨系统经济性和热力学可行性之间的权衡。通过本项目的研究形成功、热同步集成的理论，为化工过程的节能减排提供技术支持。

Work and heat are two main forms of energy utilized in chemical industry, thus it is of vital significance for their cooperative utilization to improve the overall energy efficiency. With respect to the lack of effective integration measures for optimization of work and heat in the current process systems, efficient integration method based on exergy analysis will be studied in this project to achieve simultaneous synthesis of work exchange network (WEN) and heat exchange network (HEN). Firstly, an improved transshipment model will be proposed to carry out research on sequential integration of work and heat. A novel mathematical programming model will be established with the objective of minimum total annual cost (TAC) and maximum exergy efficiency for the whole system, respectively. In addition, solving strategies for sequential integration of work and heat as well as matching rules will be presented to reveal the interaction mechanism of work and heat. Secondly, to solve pressure constraints of work exchange, an upgraded stream-split stage-wise superstructure considering work utility in each stage will be established to lay the foundation for simultaneous integration of work and heat. Finally, a coupled topology superstructure for simultaneous synthesis of WEN and HEN will be constructed. Further, on the basis of exergoeconomic evaluation, a multi-objective optimization model will be formulated by targeting minimum TAC and maximum exergy efficiency of the overall system to expound the tradeoff between system economy and thermodynamic feasibility. Through the above research, the theoretical method for simultaneous integration of work and heat will be formulated. The presented methods can provide technical support for energy conservation and emission reduction in chemical process.