This article is cited in 16 papers

Evaporative cooling by a pulsed jet spray of binary ethanol-water mixture

P. N. Karpov^a, A. D. Nazarov^a, A. F. Serov^ab, V. I. Terekhov<sup>ab

a</sup> S.S. Kutateladze Institute of Thermophysics, Siberian Division of the Russian Academy of Sciences
^b Novosibirsk State Technical University

Abstract: We have experimentally studied the heat transfer under conditions of pulsed multinozzle jet spray impact onto a vertical surface. The working coolant fluid was aqueous ethanol solution in a range of concentrations $K_1$ = 0–96%. The duration of spray pulses was $\tau$ = 2, 4, and 10 ms at a repetition frequency of 10 Hz. The maximum heat transfer coefficient was achieved at an ethanol solution concentration within 50–60%. The thermal efficiency of pulsed spray cooling grows with increasing ethanol concentration and decreasing jet spray pulse duration.

Received: 09.02.2015

 English version: Technical Physics Letters, 2015, 41:7, 668–671

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