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Title: Method and apparatus for heat extraction by controlled spray cooling

Patent ·
OSTI ID:872696
 [1];  [2];  [3];  [2]
  1. 5492 Lenore Ave., Livermore, Alameda County, CA 94550
  2. 304 Daisyfield Dr., Livermore, Alameda County, CA 94550
  3. 864 Lucille St., Livermore, Alameda County, CA 94550
+ Show Author Affiliations

Two solutions to the problem of cooling a high temperature, high heat flux surface using controlled spray cooling are presented for use on a mandrel. In the first embodiment, spray cooling is used to provide a varying isothermal boundary layer on the side portions of a mandrel by providing that the spray can be moved axially along the mandrel. In the second embodiment, a spray of coolant is directed to the lower temperature surface of the mandrel. By taking advantage of super-Leidenfrost cooling, the temperature of the high temperature surface of the mandrel can be controlled by varying the mass flux rate of coolant droplets. The invention has particular applicability to the field of diamond synthesis using chemical vapor deposition techniques.

Research Organization:
Sandia National Laboratories (SNL), Albuquerque, NM, and Livermore, CA (United States)
DOE Contract Number:
AC04-94AL85000
Assignee:
Edwards, Christopher Francis (5492 Lenore Ave., Livermore, Alameda County, CA 94550);Meeks, Ellen (304 Daisyfield Dr., Livermore, Alameda County, CA 94550);Kee, Robert (864 Lucille St., Livermore, Alameda County, CA 94550);McCarty, Kevin (304 Daisyfield Dr., Livermore, Alameda County, CA 94550)
Patent Number(s):
US 5992159
OSTI ID:
872696
Country of Publication:
United States
Language:
English

References (4)

Mechanisms of film boiling heat transfer of normally impacting spray journal February 1987
Leidenfrost Temperature and Heat-Transfer Coefficients for Water Sprays Impinging on a hot Surface conference January 1974
Controlled deposition of diamond from an acetylene-oxygen combustion flame journal May 1993
High-heat-flux, low-superheat evaporative spray cooling conference February 2013

Similar Records

Method and apparatus for heat extraction by controlled spray cooling
Patent · Tue Nov 30 00:00:00 EST 1999 · OSTI ID:872696
Super-leidenfrost spray cooling: A solution to the problem of controlled high-temperature, high-flux heat extraction
Conference · Mon May 01 00:00:00 EDT 1995 · OSTI ID:872696
Thermo- and fluid dynamics characterization of spray cooling with pulsed sprays
Journal Article · Tue Nov 01 00:00:00 EST 2005 · Experimental Thermal and Fluid Science · OSTI ID:872696

Related Subjects

method
apparatus
heat
extraction
controlled
spray
cooling
solutions
temperature
flux
surface
mandrel
embodiment
provide
varying
isothermal
boundary
layer
portions
providing
moved
axially
coolant
directed
taking
advantage
super-leidenfrost
mass
rate
droplets
particular
applicability
field
diamond
synthesis
chemical
vapor
deposition
techniques
spray cooling
mass flux
heat flux
chemical vapor
vapor deposition
deposition techniques
boundary layer
moved axially
taking advantage
deposition technique
flux surface
flux rate
controlled spray
/62/134/266/