Multi-scale Modeling of Energy System via the Means of Coupling Process and CFD Models
A general framework for the online coupling and co-simulation of a widely used CFD package (Fluent) within a general-purpose advanced process simulator (MATLIB/Simulink) is presented in this paper. The simulation with the method is carried out by MATLAB/Simulink. The interface in the program system of MATLAB is realized by S-Function, and the interface in the CFD-programmed in FLUENT is realized by UDF(User-Defined-Functions). These interfaces are programmed in the way that the necessary data transfer between MATLAB/Simulink and FLUENT, the synchronization and control of the model running are implemented through the TCP/IP protocol. Therefore, it is possible that both simulation models run on a single computer or two different computers, in which each model uses its own CPU – efficiency to full capacity. Based on the method, a elementary multi-scale modeling of a natural gas-fed integrated internal-reforming solid oxide fuel cell-gas turbine (SOFC-GT) power generation system is performed. The 2D internal flow, heat and mass transfer, electrochemical reaction in SOFC is investigated using CFD, the whole system’s dynamical behavior is modeled using MATLAB/Simulink based on the mass and energy conservations. The coupled simulation shows that by exploiting the ability of CFD to provide a detailed analysis of fluid dynamics and heat transfer in complex geometries, and the method is a powerful tool for the analysis of inherent mechanism for advanced energy system.
Coupling simulation Computational fluid dynamics Process simulation Hybrid SOFC-GT power generation system
Chen Yang Xaio-long Gou Sheng-li Tang
College of Power Engineering, Chongqing University, Chongqing, 400044, China
国际会议
2007杭州国际动力工程会议(The International Conference on Power Engineering 2007)
杭州
英文
2007-10-23（万方平台首次上网日期，不代表论文的发表时间）