@inproceedings{42b833ea4b5e4f9588f6818beaf8a516,
title = "Experimental investigation of droplet dynamics and heat transfer in spray cooling",
abstract = "An experimental investigation on droplet dynamics in steady-state spray cooling heat transfer was conducted. Theoretical analysis for dropwise impinging cooling was given. Both pure water and water solution containing 100 ppm by weight of sodium dodecyl sulfate were used to cool a 10 mm in diameter, upward-facing copper surface. The diameter, velocity and local mass flux of both incoming and outgoing droplets were measured in situ by using of a newly developed high-accuracy laser phase-Doppler anemometry (PDA). The expulsion rate defined as the ratio of local outgoing mass flux to incoming mass flux was introduced. Measurement results of expulsion rate and expelled droplet diameter provide a quantitative analysis on the mechanism of spray cooling. The effect of mass flux on steady-state spray cooling heat transfer for both water and above-mentioned solution was studied with a multi-nozzle spray system. Mass flux varies from 0.156 Kg/m2s to 1.20 Kg/m2s while diameter and velocity change only about 20\%.",
keywords = "Droplet Dynamics, Phase-Doppler Anemometry (PDA), Spray Cooling",
author = "W. Jia and Qiu, \{H. H.\}",
year = "2001",
language = "English",
isbn = "0791835332",
series = "Proceedings of the National Heat Transfer Conference",
publisher = "American Society of Mechanical Engineers",
pages = "725--732",
booktitle = "Proceedings of the 2001 National Heat Transfer Conference Volume 1",
note = "2001 National Heat Transfer Conference (NHTC2001) ; Conference date: 10-06-2001 Through 12-06-2001",
}