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

Abstract

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.

Inventors:
 [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)
Issue Date:
Research Org.:
SANDIA CORP
OSTI Identifier:
872696
Patent Number(s):
5992159
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) SNL
DOE Contract Number:  
AC04-94AL85000
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
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/

Citation Formats

Edwards, Christopher Francis, Meeks, Ellen, Kee, Robert, and McCarty, Kevin. Method and apparatus for heat extraction by controlled spray cooling. United States: N. p., 1999. Web.
Edwards, Christopher Francis, Meeks, Ellen, Kee, Robert, & McCarty, Kevin. Method and apparatus for heat extraction by controlled spray cooling. United States.
Edwards, Christopher Francis, Meeks, Ellen, Kee, Robert, and McCarty, Kevin. Fri . "Method and apparatus for heat extraction by controlled spray cooling". United States. https://www.osti.gov/servlets/purl/872696.
@article{osti_872696,
title = {Method and apparatus for heat extraction by controlled spray cooling},
author = {Edwards, Christopher Francis and Meeks, Ellen and Kee, Robert and McCarty, Kevin},
abstractNote = {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.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1999},
month = {1}
}

Patent:

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