Electrostatic Precipitator Model Simulation Based On FDM And Software Implementation

Under the background that the environmental problem has been seized more and more attention, electrostatic precipitator (ESP), as an effective facility for dealing with air pollutions with high efficiency, low resistance, large capacity and wide using range, has been employed and investigated increasingly. Establish reliable, accurate and complete model is the foundation of Electrostatic Precipitator's research, design and control. Unfortunately, there is still lack of systematic research since the physical processes is so complex in ESP, which result is the design and application of ESP still greatly rely on experiences. These drawbacks result in many incoherencies between research and practice.Nowadays, the study mainly focus on how to establish a more practical model for application, analysis V-I characteristics in ESP and the ways to improve collection efficiency. Develop software about ESP and expand the industrial application are both the pursuits of enterprises, some have already matured and gained a good market prospect.The main content and innovations of this paper are listed below:1. Study on the mechanism of ESP, investigate the theoretical results of mathematical model built by previous researches, and build a comparatively self-contained and exact mathematical model of ESP. The model contains several coupled parts such as electric field, particle charge, particle collection and non-ideal factors, in order to make a clear and accurate description about the process, all of which will be a good start for further studies such as control and optimization.2. Adopt finite difference method that widely used electromagnetic calculations with the boundary conditions to make analysis and algorithm description on ESP. With the result, analysis V-I characteristics which determines the final performance of ESP and study the relationship between parameters and collection efficiency.3. Design and code a simulation platform for ESP using open source software SCILAB combined with TCL/TK\. Achieve the functions like the parameter configuration, computation and simulation of the wholeprocess, which help to analyze the relationship among parameters, non-ideal factors and the collection efficiency of ESP. This software has been tested in Lan'xi power plant.4. Considered electrostatic precipitator's actual working environment and the diversity of equipments, adopting the popular OPC standards to develop an OPC industry interface which can bridge data communication with equipments. The function has already been applied in Lan'xi power plants and approved availably.