Nucleate Boiling of Freon 113 in Thin Liquid Films.
Abstract
Experimental results are presented for distilled Freon 113 at atmospheric pressure with liquid levels ranging from pool depths near 10mm down to thin films near 0.2mm. Temperature measurements with thermocouples and liquid crystals show that liquid level has little effect on heat transfer coefficient above a level of 5mm, and a slight decrease occurs as the liquid level is reduced to 2mm. Below 2mm, the heat transfer coefficient increases sharply as the level is further reduced. In addition, the heat transfer coefficient increases with increased surface roughness. In thin films, the incipient boiling point occurs at a lower heat flux and a lower superheat than in pool boiling. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Dec 01, 1976
- Accession Number
- ADA039339
Entities
People
- Soehana
Organizations
- Naval Postgraduate School