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[Библиогр.: с. 23-24 (31 назв.)]

Выполнено экспериментальное исследование полноты испарения распыленной воды при движении через высокотемпературные продукты сгорания. Определены численные значения скорости, массы и размеров водяных капель после прохождения их через пламя фиксированной высоты. Проанализированы эффекты, связанные с влиянием "соседних" капель на условия парообразования. Установлены параметры распыления воды, при которых обеспечивается полнота ее испарения.

The article presents scheme, technique and results of an experimental series for evaporation regularities researching of the sprayed water moving through high-temperature combustion products on the example of flame with fixed height. The modern diagnostic measuring PIV-system is used for registration and the analysis of experimental videograms. It is established that errors of the drops sizes and weight determination didn't exceed 0.044 mm and 0.00006 g. Videograms and speed fields of the sprayed liquid drops groups (water with "tracing" of the titan dioxide nanopowder particles) are provided. Limit changes of the sizes, weight and speeds of drops at movement through a flame are established. Internal structure changes of the two-phase steam-and-water stream in the intensive phase transitions conditions are analysed. It is shown that the concentration enough small drops in working area significantly decreases. The corresponding recommendations about achievement the completeness evaporation of liquid at movement through a flame are formulated. The influence of "neighboring" drops on steam formation conditions in two-phase flow is established. It is shown that previous drops significantly slow down the evaporation process of the subsequent drops. Good compliance of results with the known theoretical conclusions is obtained. Additional experiment for the analysis of the titan dioxide nanopowder particles influence on the steam formation conditions is also executed. It is shown that deviations on characteristic evaporation times of water drops and the nanopowder TiO 2 mix don't exceed 0.62 %. The conclusion is drawn on legitimacy of the received results distribution on the example of the most widespread burning phlegmatizator - water without "tracing" mixes.