ACOUSTICAL MEASUREMENT OF INCIPIENT BOILING (thesis)
Technical Report
·
OSTI ID:4160419
A method for the experimental determination of the time to inception of subcooled nucleate boiling was developed. It consists of measuring the time between the initiation of an electrical heating step in a thin foil (or wire) and the acoustical disturbance caused by boiling on the heated surface. Tests made for steady-state pool boiling (from a single nucleating site), step-transient pool boiling, and step-transient boiling in an enclosed capsule verified the method. Heat flexes varied from 2.2 x 10/sup 4/ to 161 x 10/sup 4/ eter copper wire and 0.002-inch thick zirconium and stainless steel ribbons. To measure the time to incipient boiling, high speed motion pictures of the bubble growth and the oscilloscope trace from the bubble noise were taken simultaneously on the same film. An electronic scaler was used to measure boiling inception times for steptransient pool boiling on copper wire and stainless steel foil heating surfaces for three bath temperatures and a broad range of heat fluxes. (auth)
- Research Organization:
- California. Univ., Berkeley. Inst. of Engineering Research
- DOE Contract Number:
- AT(11-1)-34
- NSA Number:
- NSA-18-000403
- OSTI ID:
- 4160419
- Report Number(s):
- SAN-1006; NE-63-1
- Country of Publication:
- United States
- Language:
- English
Similar Records
Heating surface material’s effect on subcooled flow boiling heat transfer of R134a
Transient model for minimum film boiling point in sub-cooled film boiling
Boiling incipience and heat transfer on smooth and enhanced surfaces
Journal Article
·
Thu Nov 01 00:00:00 EDT 2012
· International Journal of Heat and Mass Transfer
·
OSTI ID:1062745
Transient model for minimum film boiling point in sub-cooled film boiling
Thesis/Dissertation
·
Wed Dec 31 23:00:00 EST 1986
·
OSTI ID:6361618
Boiling incipience and heat transfer on smooth and enhanced surfaces
Thesis/Dissertation
·
Wed Dec 31 23:00:00 EST 1986
·
OSTI ID:6611357