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An interactive design environment for coal piping system
| Content Provider | Semantic Scholar |
|---|---|
| Author | Huang, Gengxun |
| Copyright Year | 2006 |
| Abstract | Optimization of coal pipe design is necessary to address the increasing demands of high performance and reduced emissions for pulverized coal-fired power plants. The design of coal piping is a complex and time-consuming engineering task that involves meeting of several design objectives and constraints. The distribution of coal particles in a pneumatic pipeline can be highly inhomogeneous, depending upon the pipeline geometry, phase loading, conveying air velocity and properties of the solid material including particle size, moisture content. A particularly difficult type of inhomogeneous distribution is the roping flow regime, in which most of the moving particles are concentrated into a small portion of the cross sectional area of the pipe which is mainly caused by bends in the pipe. Current coal piping design technology relies on empirical model and does not consider particle distribution characteristics in the pipe. In this thesis, a design tool which couples a validated detailed pipe model and an interactive optimization algorithm is developed. This new design tool uses evolutionary algorithms (EAs) as the optimization algorithm, and computational fluid dynamics (CFD) as the evaluation mechanism. The process uses an iterative approach that allows design to be evaluated using CFD analysis automatically to optimize several criteria. The proposed design change is then re-meshed and displayed. Three fundamentally different techniques from traditional optimization methods were considered in order to reduce computation time. Firstly, the tool has been implemented in a virtual engineering environment using VE-Suite. Secondly, the system is integrated with a general interface to allow users to set up the design procedure and interact or guide the searching path as the design evolves. Thirdly, a fast calculation approach is used to reduce the time for single CFD |
| File Format | PDF HTM / HTML |
| DOI | 10.31274/rtd-180813-156 |
| Alternate Webpage(s) | https://lib.dr.iastate.edu/cgi/viewcontent.cgi?article=2523&context=rtd&httpsredir=1&referer= |
| Alternate Webpage(s) | http://lib.dr.iastate.edu/cgi/viewcontent.cgi?article=2523&context=rtd |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
