Physical features of liquid atomization when using different methods of spraying

Vasil’ev, A. Yu.; Maiorova, A. I.

doi:10.1134/s0018151x14010210

Cited by 8 publications

(3 citation statements)

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“…Taking into consideration the results of studies [15] that declare no correlation between spraying quality and liquid viscosity in the presence of pneumatic atomization, it can be said that a small enhancement of combustion efficiency with the use of PIB kerosene may be caused by higher efficiency of the wall-film cooling operation. This is due to the wall heat flux reduction degression and combustion chamber heat loss reduction attributed to higher efficiency of wall-film cooling.…”

Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

“…According to [15], the use of gaseous atomization eliminates the influence of the liquid properties on the linear sizes of the drops, and the droplet diameter is mainly determined by the atomization gas parameters. As the injectors used in the test engine are of the gaseous atomization type (atomized by gaseous oxygen similar to "air-blast atomizers"), it could be stated that the Sauter mean diameter (SMD) under these conditions and using the current design is mainly influenced by the oxidizer massflow and is not dependent on fuel properties such as kinematic viscosity.…”

Section: Methodsmentioning

confidence: 99%

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Influence of Polyisobutylene Kerosene Additive on Combustion Efficiency in a Liquid Propellant Rocket Engine

et al. 2019

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The combustion of kerosene with the polymer additive polyisobutylene (PIB) was experimentally investigated. The aim of the study was to measure the effect of PIB kerosene on the efficiency of combustion chamber cooling and the combustion efficiency of the liquid propellant for a rocket engine operating on kerosene and gaseous oxygen (GOX). The study was conducted on an experimental rocket engine using kerosene wall film cooling in the combustion chamber. Fire tests showed that the addition of polyisobutylene to kerosene had no significant effect on the combustion efficiency. However, analysis of the wall temperature measurement results showed that the use of PIB kerosene is more effective for film cooling than pure kerosene, which can increase the efficiency of combustion chamber cooling and subsequently increase its reliability and reusability. Thus, the findings of this study are expected to be of use in further investigations of wall film cooling efficiency.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

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