ON THE EFFECT OF VIBRATIONS ON NUCLEATE BOILING HEAT TRANSFER AT NEAR SATURATED CONDITIONS.
Abstract
An experimental investigation was performed to determine the effects of vibrations on nucleate boiling heat transfer rates. Transverse harmonic vibrations up to 2000 cps were applied to a one-half inch wide Nichrome 5 heater mounted on a 1.25 x 9.0 inch phenolic cylinder. Large improvements in h were obtained at low q/A. However, as the heat flux was increased to approximately 150,000 B/hr sq ft, the improvement diminished to zero, or, in some instances, even a slight degradation. The maximum attainable h for heat fluxes below 150,000 B/hr sq ft occurred at 40 cps. It was nearly equal to the maximum attainable h due to forced convection as reported by McAdams. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Jun 01, 1967
- Accession Number
- AD0818402
Entities
People
- John Charles Macpherson
Organizations
- Air Force Institute of Technology