Analysis of critical heat flux during subcooled boiling for finned fuel elements
| Autor: | J.E. Kowalski, J.R. Buell, T.V. Tran |
|---|---|
| Rok vydání: | 1994 |
| Předmět: |
Nuclear and High Energy Physics
Materials science Critical heat flux Mechanical Engineering Thermodynamics Mechanics Subcooling Nuclear Energy and Engineering Boiling Heat transfer model General Materials Science Safety Risk Reliability and Quality Galerkin method Waste Management and Disposal Glass tube Dimensionless quantity |
| Zdroj: | Nuclear Engineering and Design. 149:177-184 |
| ISSN: | 0029-5493 |
| DOI: | 10.1016/0029-5493(94)90284-4 |
| Popis: | Experimental and analytical studies were performed to determine the critical heat flux (CHF) during subcooled boiling on finned fuel elements. Tests were conducted in a vertical, concentric-annulus test section consisting of a glass tube containing a finned heater element with either six, eight, or ten longitudinal fins. The phenomena leading to CHF are described and the parametric trends are discussed. A two-dimensional finite-element heat transfer model using the Galerkin method was used to analyse the experimental data to obtain CHF values. A dimensionless correlation was derived to predict the CHF values during subcooled boiling. Over 90% of the predicted CHF values agreed with those obtained from the two-dimensional analysis within ±30%. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|