Abstract
Boiler tube failures occur in steam generation boilers due to subcritical Short Term Overheating (STO). In general, sub-critical STO occurs when design parameters are often marginally and critically discounted. This leads to frequent failures of the boiler tubes that affect the sustainability of power generation. A commercial Computational Fluid Dynamics (CFD) software, ANSYS Fluent 19.0® (Multiphase flow), was used to successfully analyze the locations where the phase boundary of energy transfer on the tube material occurs. A number of heat transfer velocity parameter changes were numerically analyzed to determine the integrity operating window in which the tube could perform, with further analysis done to predict the useful life when operating in this sub-critical STO zone. Numerical analysis is limited to a horizontal carbon steel water tube of 36.6mm ID operating at 17.6MPa with a uniform heat flux.
| Original language | English |
|---|---|
| Pages (from-to) | 111-122 |
| Number of pages | 12 |
| Journal | Proceedings of the International Conference on Industrial Engineering and Operations Management |
| Volume | 2018 |
| Issue number | NOV |
| Publication status | Published - 2018 |
| Event | Proceedings of the International Conference on Industrial Engineering and Operations Management Pretoria, IEOM 2018 - Duration: 29 Oct 2018 → 1 Nov 2018 |
Keywords
- Computational fluid dynamics
- Heat transfer
- Horizontal tube
- Multiphase flow
- Power generation boilers
ASJC Scopus subject areas
- Strategy and Management
- Management Science and Operations Research
- Control and Systems Engineering
- Industrial and Manufacturing Engineering