A system for burning of a destroyed highly toxic substance with formation of a vertical supersonic stream of combustion products moved away to the atmosphere on considerable heights has been considered. A technique and an algorithm for conjugated gas-dynamic and thermodynamic calculation of working processes in two-zonal unit with primary burning using air in a camera similar to the one of a liquid rocket engine, and after-burning in a supersonic flow have been proposed. The technique has been approved on the examples of after-burning mathematical modeling and a parametrical research on combustion completeness influence on composition and properties of products resulting from heptyl combustion in air with after-burning in case of methane supply in the second zone.
firing thermal destruction method, two-zone burning, chamber of liquid rocket engine, after-burning in supersonic flow, gas-dynamical calculation, air, heptyl.
1. Введение в проблему
Один из методов обезвреживания токсичных веществ, в частности ракетного топлива и его компонентов, а также технологических жидкостей, например использованного в качестве промывочной среды этанола, метанола или других жидких производственных отходов, состоит в их уничтожении сжиганием и удалением в атмосферу продуктов сгорания с остаточным содержанием токсичных веществ. При этом продукты сгорания выбрасываются в вертикальной струе на некоторую высоту, увеличение которой обеспечивает более интенсивное снижение их концентрации до допустимого уровня за счет смешения с воздухом. Это может быть обеспечено при инерционном подъеме струи отходящих газов за счет ее ускорения до очень высокой и даже сверхзвуковой скорости.
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