Accession Number:
AD0818402
Title:
ON THE EFFECT OF VIBRATIONS ON NUCLEATE BOILING HEAT TRANSFER AT NEAR SATURATED CONDITIONS.
Descriptive Note:
Master's thesis,
Corporate Author:
AIR FORCE INST OF TECH WRIGHT-PATTERSON AFB OH SCHOOL OF ENGINEERING
Personal Author(s):
Report Date:
1967-06-01
Pagination or Media Count:
60.0
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 qA. However, as the heat flux was increased to approximately 150,000 Bhr 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 Bhr sq ft occurred at 40 cps. It was nearly equal to the maximum attainable h due to forced convection as reported by McAdams. Author
Descriptors:
Subject Categories:
- Mechanics
- Thermodynamics