Fundamental Studies in Cryogenic Cooling of Power Electronics.
Abstract
This report is divided into three different studies. The first study deals with the critical heat flux in spray cooling. A new correlation is derived based on the macrolayer dry-out model for critical heat flux. This correlation is shown to have very good agreement with available data for different forms of spray cooling. The second study deals with the heat transfer characteristics of a vertical array of heaters in a confined space in liquid nitrogen. Experiments were conducted to study the behavior of flush mounted heaters in a vertical array with limited space in front. The results show the effect of heater position, heater length, and the spacing in front of the heaters. The last part deals with flow boiling of liquid nitrogen from discrete heat sources in a rectangular channel. An experimental apparatus has been designed and fabricated to study the effect of various geometrical parameters in flow boiling from discrete heat sources.
Document Details
- Document Type
- Technical Report
- Publication Date
- Sep 01, 1995
- Accession Number
- ADA309663
Entities
People
- C. J. Chui
- L. C. Chow
- M. S. Sehmbey
- O. J. Hahn
- W. F. Lu
Organizations
- University of Kentucky