Parameter study at the PKL test facility on heat transfer mechanisms in the steam generator in presence of nitrogen, steam and liquid
| Autor: | Rafał Bryk, Lars Dennhardt, Simon Schollenberger, Konrad Świrski |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
020209 energy
Mechanical Engineering Nuclear engineering Shutdown Pressurized water reactor Boiler (power generation) 02 engineering and technology Building and Construction Residual Pollution Industrial and Manufacturing Engineering law.invention Thermal hydraulics General Energy 020401 chemical engineering Accident management law Core damage frequency Heat transfer 0202 electrical engineering electronic engineering information engineering Environmental science 0204 chemical engineering Electrical and Electronic Engineering Civil and Structural Engineering |
| Zdroj: | Energy. 211:118612 |
| ISSN: | 0360-5442 |
| Popis: | PKL is a worldwide unique integral test facility for simulation of thermal-hydraulic phenomena, which can occur in Pressurized Water Reactor under abnormal or accident conditions. The test rig replicates the entire primary side and the relevant parts of the secondary side of western-type PWR plant in the scale of 1:1 in heights and 1:145 in volume and power. The analyses that have been carried out for the last 40 years have always reflected safety issues addressed in the debate of nuclear community. Among goals of experimental programs conducted at the facility there are demonstration of safety margins, investigation of thermal-hydraulic behavior of a plant under accident conditions, verification of accident management procedures as well as provision of data for thermal-hydraulic codes validation. This paper provides a detailed analysis of experiment dedicated to investigation of heat transfer mechanisms in steam generator in presence of non-condensable gas, steam and liquid. Such conditions can occur in a PWR in case of loss of residual heat removal system under cold shutdown conditions. Probabilistic safety assessments indicated that this accident contributes to much larger core damage frequency than originally anticipated. Therefore, an increasing attention has been paid to this accident scenario in the recent years. |
| Databáze: | OpenAIRE |
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