Published January 7, 2003 | Version v1
Journal article

Effects of mass flow rate and droplet velocity on surface heat flux during cryogen spray cooling

  • 1. Department of Chemical Engineering and Material Sciences, University of California, Irvine, CA (United States)
  • 2. Department of Biomedical Engineering, University of California, Irvine, CA (United States)
  • 3. Beckman Laser Institute, University of California, Irvine, CA (United States)

Description

Cryogen spray cooling (CSC) is used to protect the epidermis during dermatologic laser surgery. To date, the relative influence of the fundamental spray parameters on surface cooling remains incompletely understood. This study explores the effects of mass flow rate and average droplet velocity on the surface heat flux during CSC. It is shown that the effect of mass flow rate on the surface heat flux is much more important compared to that of droplet velocity. However, for fully atomized sprays with small flow rates, droplet velocity can make a substantial difference in the surface heat flux. (note)

Availability note (English)

Available online at http://stacks.iop.org/0031-9155/48/N1/m301n1.pdf or at the Web site for the journal Physics in Medicine and Biology (ISSN 1361-6560) http://www.iop.org/

Additional details

Identifiers

Publishing Information

Journal Title
Physics in Medicine and Biology
Journal Volume
48
Journal Issue
1
Journal Page Range
p. N1-N6
ISSN
0031-9155
CODEN
PHMBA7

INIS

Country of Publication
United Kingdom
Country of Input or Organization
International Atomic Energy Agency (IAEA)
INIS RN
34020296
Subject category
S62: RADIOLOGY AND NUCLEAR MEDICINE;
Descriptors DEI
DERMATITIS; DROPLETS; EPIDERMIS; FLOW RATE; HEAT FLUX; SPRAY COOLING; SURGERY
Descriptors DEC
ANIMAL TISSUES; BODY; COOLING; DISEASES; EPITHELIUM; MEDICINE; ORGANS; PARTICLES; SKIN; SKIN DISEASES