Characteristic features of evaporative cooling of droplets in high-temperature flows

Authors: Brin, A.¹; Fisenko, S.²; Khodyko, Yu.¹

Source: Journal of Engineering Physics and Thermophysics, Volume 84, Number 2, March 2011 , pp. 292-297(6)

Publisher: Springer

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Abstract:

Numerical investigation of the evaporative cooling of water droplets in a high-temperature gas flow (temperature above 1000°C) has been carried out for two limiting regimes: a continuous medium and a free-molecular regime. The results of modeling have shown that with a small content of water vapor in the flow, due to evaporative cooling the droplet temperature attains a stationary value that is lower than the stream temperature by hundreds of degrees.

Keywords: heat transfer coefficient; droplet temperature; flow reactor; thermophoresis

Document Type: Research article

DOI: http://dx.doi.org/10.1007/s10891-011-0472-1

Affiliations: 1: A. V. Luikov Heat and Mass Transfer Institute, National Academy of Sciences of Belarus, 15 P. Brovka Str., Minsk, 220072, Belarus 2: A. V. Luikov Heat and Mass Transfer Institute, National Academy of Sciences of Belarus, 15 P. Brovka Str., Minsk, 220072, Belarus, Email: fsp@hmti.ac.by

Publication date: 2011-03-01