INVESTIGATION OF LIQUID METAL BOILING HEAT TRANSFER.
Abstract
A numerical analysis of the edge effects in the 1 in. diameter film boiling apparatus was completed. The uncertainty in condensing coefficients for sodium beneath the plate makes it difficult to correct for the large amount of heat which flows up the wall when the system operates in the film regime. A design for a modified boiler is presented. The forced convection apparatus was reassembled after the zirconium chips in the hot trap were replaced. Filters were added at several points in the system to collect suspended solids or oxide if either existed in the system. Despite all efforts plugs still developed and flow was obtained for only brief periods during this time. The extremely small pumping restriction seems to accentuate the problem and consideration is being given to purchasing a new pump which might permit circulation for a period sufficiently long to collect all solids in the loop filters. The agravic apparatus was operated with mercury at a/g of one. Data was obtained in the nucleate, transition and film regimes. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Sep 01, 1964
- Accession Number
- AD0606826
Entities
People
- Andrew Padilla Jr.
- Bruce F. Caswell
- Herman Merte Jr.
- Richard E. Balzhiser
- Robert E. Barry
Organizations
- University of Michigan