Abstract
The article is devoted to the study of the processes of functioning of pyrotechnic generators of ice-forming aerosol under conditions as close as possible to the conditions of real cloud-seeding operations. The influence of external pressure on the functioning of a pyrotechnic generator in the dimensions of a PV-26 ejectable flare equipped with a composition according to RU patent No. 2551343 (containing 15 % of an active reagent) under conditions a pressure to 267 mm Hg (corresponds to the maximum height of the use of generators of this type - 8 km). The experiments were carried out in thermal vacuum chambers of the RPA "Typhoon". As a result of the experiments were determined the dependences of the burning rate of the pyrotechnic composition, the change in the content of active ice-forming rea-gents, and the spectral characteristics of the generated aerosol on external pressure. As a extreme case, there is a significant probability of a stop burning of the pyrotechnic composition when using PV-26 ejectable flare at pressures less than 405 mm Hg (corresponds to an altitude of 5 km).
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