Abstract
The safety of equipment under flexible operation is an important issue in the deep peak shaving process of coal-fired power plants. As large-scale, high-temperature and pressure-bearing heat exchangers, high-pressure heaters play an important role in the flexibility regulation of the unit. However, safety problems are severe. Therefore, a three-dimensional finite element model was established for the No.1 high-pressure heater of a 660 MW supercritical coal-fired power plant, to assess the distributions of transient temperature fields, thermal stress fields, mechanical stress fields and coupling stress fields of the heater under different feedwater bypass regulations.
| Original language | English |
|---|---|
| Pages (from-to) | 329-338 |
| Number of pages | 10 |
| Journal | Power Generation Technology |
| Volume | 40 |
| Issue number | 4 |
| DOIs | |
| State | Published - 30 Aug 2019 |
UN SDGs
This output contributes to the following UN Sustainable Development Goals (SDGs)
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SDG 7 Affordable and Clean Energy
Keywords
- Feedwater bypass
- High pressure heater
- Stress analysis
- Supercritical coal-fired power plant
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