- Author
-
Trehan, A. K.
|
diMarzo, M.
|
Evans, D. D.
- Title
- Transient Cooling of a Hot Surface by Droplet Evaporation.
- Coporate
- Maryland Univ., College Park, MD
National Bureau of Standards, Gaithersburg, MD
- Sponsor
- National Bureau of Standards, Gaithersburg, MD
- Report
-
NBS GCR 86-516,
July 1986,
132 p.
- Distribution
- Available from National Technical Information Service
- Book or Conf
- Combustion Institute/Eastern States Section. Chemical and Physical Processes in Combustion. Fall Technical Meeting, 1985. November 4-6, 1985,
Philadelphia, PA,
61/1-61/4 p.,
1985
- Keywords
-
computer models
|
droplets
|
evaporation
|
heat transfer
|
water
- Abstract
- The thermal behavior of a hot surface subjected to cold liquid droplet impingement is investigated. Predictions of the cooling effect (radius and depth of influence) induced by a single droplet in contact with the hot surface are made using a finite difference thermal model of the solid. Liquid spray and more often, water spray is used in the extinguishment of various types of fires. Liquid spraying is a process common to many other fields (eg. air conditioning, gas absorption, washing and cleaning, coating of surfaces, combustion enhancement, quenching, etc.). Presently there are many works in the heat transfer area related to spray cooling, but only a few studies have been made of droplet evaporation and of those only a small number have been at temperatures below the saturation temperature of the liquid.