Исследование эффективности охлаждения резонатора газодинамической системы воспламенения на двухфазной топливной композиции

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Исследование эффективности охлаждения резонатора газодинамической системы…
Инженерный журнал: наука и инновации # 12·2016 15
Research into efficiency of resonator cooling
in gas-dynamic ignition system
with two-phase fuel composition
© O.A. Vorozheeva, . Arefyev
Bauman Moscow State Technical University, Moscow, 105005, Russia
Nowadays, life-extension of gas-dynamic ignition systems (GDIS) is of great interest.
GDIS are used in the present-day energy, propulsion and technological installations of
different purpose. It can be achieved by reducing heat impact on the main element of
GDIS, i.e. resonator. To solve this problem, systems with either a remote resonator or di-
rect-flow cooling of its outer surface are applied. The paper considers a thermal state of
both resonators: the remote resonator and the one with direct-flow cooling. Firing time
of GDIS is estimated until the remote resonator starts breaking, with the system operat-
ing uninterrupted and momentum. Direct-flow cooling efficiency of the resonator is ana-
lyzed. Selection guidelines of the structural layout and resonator material are given.
Keywords: thermal state, gas-dynamic ignition system, two-phase fuel composition,
mathematical modeling, ethanol, resonator, cooling
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