Thermohydraulic Efficiency of Complanar Cooling Circuits for Liquid-Propellant Engine Chambers
| Authors: Aleksandrenkov V.P. | Published: 15.04.2015 |
| Published in issue: #2(101)/2015 | |
| Category: Aviation and Rocket-Space Engineering | Chapter: Thermal, Electric Jet Engines, and Power Plants of Aircrafts | |
| Keywords: circular complanar channel, cross finning, efficiency, finning parameters, convective heat transfer intensification, maximal heat removal, thermal hydraulic characteristics | |
The paper considers the coplanar circuits (with cross finning) used for cooling liquid rocket engines by means of the maximal heat removal criterion. The available experimental data on the convective component of heat loss are used to perform computational and analytical analysis of the influence of both thermal hydraulic flow characteristics and finning parameters on their efficiency. The possibility ofusing the proposed methodology for evaluating the heat transfer efficiency in the conventional finned circuits with regard to the coplanar flow peculiarities is demonstrated. The domains of finning parameters are defined with a significantly higher (2-4 times) efficiency in comparison with the conventional finning of the cooling channels.
References
[1] Aleksandrenkov V.P. Efficiency of heat transfer intensification in circular finned cooling circuits of combustion chambers. Vestn. Mosk. Gos. Tekh. Univ. im. N.E. Baumana, Mashinostr. [Herald of the Bauman Moscow State Tech. Univ., Mech. Eng.], 2013, no. 3, pp. 111-121 (in Russ.).
[2] Kudryavtsev V.M., Orlin S.A., Posnov S.A. Experimental research of flow resistance in circuits with complanar channels. Izv. Vyssh. Uchebn. Zaved., Mashinostr. [Proc. Univ., Mech. Eng.], 1983, no. 4, pp. 54-58 (in Russ.).
[3] Pelevin F.V., Il’inskaya O.I., Orlin S.A. Engineering application of coplanar channels. Vestnik PNIPU. Aerokosmicheskaya tekhnika [PNRPU Aerospace Engineering Bulletin], 2014, no. 2 (37), pp. 71-85 (in Russ.).
[4] Orlin S.A., Posnov S.A. Experimental research of heat transfer and flow resistance in circular ducts with complanar channels. Trudy MVTU im. N.E.Baumana [Proc. Bauman MSTU], 1984, no. 417, pp. 9-12 (in Russ.).
[5] Kirillov P.L., Yur’ev Yu.S., Bobkov V.P., ed. Spravochnik po teplogidravlicheskim raschetam. Yadernye reaktory, teploobmenniki, parogeneratory [Reference book on thermal and hydraulic calculations. Nuclear reactors, heat exchangers, steam generators]. Moscow, Energoatomizdat Publ., 1990. 360 p.
[6] Kudryavtsev V.M., ed. Osnovy teorii i rascheta zhidkostnykh raketnykh dvigateley [Theory and design bases of liquid propellant rocket engines]. Moscow, Vyssh. shk. Publ., 1993. 703 p.
