All Categories : Technical White Papers : CAE and FEA Bookmark and Share

Title : Steam Turbine Start-Up Optimization Tool Based On Abaqus And Python Scripting
Company : SIMULIA
File Name : steam-turbine-start-up-optimization-abaqus-python-2009.pdf
Size : 29835
Type : application/pdf
Date : 09-Jul-2011
Downloads : 1

Rate This File
5 Stars
4 Stars
3 Stars
2 Stars
1 Star

One key aspect for the design of fast and flexible steam turbine operation is thermal stresses arising during transient operation. If the stresses exceed the fatigue limits of the material, the lifetime of the steam turbine is shortened. Detailed finite element analysis is applied during design phase to assess the effect of transient temperature and stress profiles on the complex geometries. A significant amount of design effort is invested to determine the optimal process parameters for start-up (e.g. steam temperatures, run-up and loading gradients), in order to achieve the fastest possible starts without exceeding allowable material stress limits. The first step of the current practice is to derive the transient thermal boundary conditions for the whole startup simulation, based on pre-defined process parameters. In a second step a finite element analysis is performed to verify these thermal boundary conditions. Using this sequential approach, a high number of iterations are required to arrive at the optimal process parameters. An automation process in the form of a design tool was developed to determine the optimal process parameters, by means of a feedback control algorithm. Using Python scripting, the tool interlinks the finite element package Abaqus/CAE (Version 6.7 and above) with an Alstom inhouse thermodynamic program, determining optimal transient thermal boundary conditions based on real time thermal stresses. Use of this tool eliminates the need for the high number of manual iterations previously required. This paper presents the concept of the optimization tool and how it interlinks the interdependent programs.
User Reviews More Reviews Review This File
Autodesk - DelCAM

Featured Video
GIS Analyst for City of Elk Grove at Elk Grove, CA
Upcoming Events
Electric&Hybrid Aerospace Technology Symposium 2016 at Conference Centre East. Koelnmesse (East Entrance) Messeplatz 1 Cologne Germany - Nov 9 - 10, 2016
Autodesk University Las Vegas at Las Vegas NV - Nov 15 - 17, 2016
SolidCAM: Program your CNCs directly inside your existing CAD system.
TurboCAD pro : Start at $299

Internet Business Systems © 2016 Internet Business Systems, Inc.
595 Millich Dr., Suite 216, Campbell, CA 95008
+1 (408)-337-6870 — Contact Us, or visit our other sites:
AECCafe - Architectural Design and Engineering EDACafe - Electronic Design Automation GISCafe - Geographical Information Services TechJobsCafe - Technical Jobs and Resumes ShareCG - Share Computer Graphic (CG) Animation, 3D Art and 3D Models
  Privacy Policy Advertise