过程系统环境火用经济建模与优化策略研究

Optimization of energy-intensive process systems usually depends upon.both economics and environment. The exergoeconomic theory is further developed.and perfected in this project. The environmental resources is quantified by using the.exergy concept, and an environmental-exergoeconomic model is established. Through.the combination of exergoeconomics with the environmental effects, the.environmental-exergoeconomic objectives and the corresponding constraints are.presented by considering the thermodynamics, economics and environment.simultaneously, which makes the system design and operation optimized. The.concepts such as rates of environmental pollution and function describing harmfulnessto environment, etc. are introduced to evaluate the resource usage in the system and.its environmental effects. A three-stage decomposing-coordinating strategy is.developed for environmental-exergoeconomic optimization of the components,.subsystems and the total system in energy-intensive process systems. The wastes are.minimized in the source through the the integrating modelling and optimization of the.energy resource systems. The theoretical method developed is applied successfully to.traditional petrochemical plants for their energy saving and waste inimization, anessential profit from energy saving and environment improvement is attained. Theextensive application of the results of this project has remarkable significance to the.energy-saving, profit increase and environment improvement of process industry.

借助火用概念对环境资源量化，提出了综合考虑热力学、经济学以及环境效应三个目标的过程系统环境火用经济优化目标函数，使系统能达到设计与操作的优化；同时发展了一种过程系统单元、了系统及系统全局的环境火用经济学三级分解协调优化策略方法。该方法的理论研究与实际应用对过程工业节能降耗、增进效益及改善环境具有十分重要的理论和现实意义。