11 / 12
Investigating and experimentally determining the characteristics…
Engineering Journal: Science and Innovation
# 12·2017 11
Investigating and experimentally determining
the characteristics of thermal-hydraulic processes
in the cooling channels of liquid rocket engine combustion
chambers featuring an extremely high degree of ribbing
© V.P. Aleksandrenkov, K.E. Kovalev, D.A. Yagodnikov
Bauman Moscow State Technical University, Moscow, 105005, Russia
Cooling system efficiency is one of the most important parameters affecting reliability of
liquid rocket engines (LRE). Using ribbed cooling channels in LRE combustion chambers
makes it possible to increase the area of the heat-releasing surface, increasing the cool-
ing system efficiency. Employing additive manufacturing and the deformational cutting
technique for producing LRE combustion chambers looks promising, since it may lead to
maximising the heat-releasing surface area. The article considers a test installation de-
veloped to determine characteristics of thermal-hydraulic processes taking place in cool-
ing channels of LRE combustion chambers featuring an extremely high degree of ribbing,
manufactured with the help of additive technology and deformational cutting. We present
the design of prototype working segments of a combustion chamber featuring an extreme-
ly ribbed cooling channel. We developed a system for recording thermal-hydraulic char-
acteristics using high-accuracy digital transducers. We developed techniques for experi-
mentally investigating the characteristics of thermal-hydraulic processes in cooling
channels, computing heat transfer coefficients and friction loss in order to validate the
possibility of using cooling channels featuring an extremely high degree of ribbing in
LRE combustion chambers.
Keywords:
thermal-hydraulic characteristics, cooling channel, combustion chamber rib-
bing, additive manufacturing, deformational cutting
REFERENCES
Aleksandrenkov V.P.
Vestnik MGTU im. N.E. Baumana Ser. Mashinostroenie —
Herald of the Bauman Moscow State Technical University. Series Mechanical
Engineering
, 2013, no. 3, pp. 111–121.
Aleksandrenkov V.P., Zubkov N.N., Yagodnikov D.A., Iryanov N.Ya.
Inzhe-
nernyy zhurnal: nauka i innovatsii — Engineering Journal: Science and Innova-
tion
, 2016, issue 10. Available at:
http://dx.doi.org/10.18698/2308-6033-2016-10-1545
Artemov A.L., Dyadchenko V.Yu., Lukyashko A.V., Novikov A.N., Popo-
vich A.A., Rudskoy A.I., Svechkin V.P., Skoromnov V.I., Smolentsev A.A., Soko-
lov B.A., Solntsev V.L., Sufiyarov V.Sh., Shachnev S.Yu.
Kosmicheskaya tekhnika i
tekhnologii — Space Engineering and Technology
, 2017, no. 1, pp. 50–62.
Solodovnikov A.V., Akinshin I.A., Golubyatnik V.V., Krivonogov A.V.
Vestnik
Samarskogo universiteta. Aerokosmicheskaya tekhnika, tekhnologii i mashi-
nostroenie — VESTNIK of Samara University. Aerospace and Mechanical
Engineering,
2017, vol. 16, no. 2, pp. 127–134.
Zubkov N.N., Ovchinnikov A.I., Kononov O.V.
Vestnik MGTU im. N.E. Bau-
mana. Ser. Mashinostroenie — Herald of the Bauman Moscow State Technical
University. Series Mechanical Engineering
, 1993, no. 4, pp. 79–82.
Zubkov N.N.
Novosti teplosnabzheniya (Heat Supply News)
, 2005, no. 4,
pp. 51–53.