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CONTENTS #1 (January) 2020

Diagnostic Systems for Hazardous Explosive Gas Accumulations During Bench Tests of Propulsion Systems Using Cryogenic Fuel Components (p. 3 – 15)

A.G. Galeev, F.A. Egorov, A.D. Polyakhov, V.T. Potapov, N.P. Sizyakov, A.A. Sokolovsky

Tests of propulsion systems on cryogenic fuel components liquid oxygen-hydrogen and liquid oxygen-methane at the test bench are carried out with the implementation of additional safety measures using diagnostic and emergency protection systems. During testing, most contingencies are associated with the leakage of explosive gases, which can cause accidents with increased doses of refueling fuel components in the tanks of propulsion systems. In this regard, it is necessary to increase the efficiency of fire and explosion warning systems, diagnostics and emergency protection for earlier detection of leaks of explosive gases.

The results of studies of the system for the early detection of hydrogen and methane leaks and the construction of diagnostic tools for the accumulation of explosive gases based on fiber-optic and microresonator structures with high speed, selectivity, noise immunity and reliability are presented.

Keywords: propulsion system; safety; diagnostic and emergency protection system; emergency situation; hydrogen leak; fiber optic technology.

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On-Stand Control Systems and Emergency Protection System for Propulsion Tests of Liquid Rocket Engines and Launch Vehicles (p. 16 – 37)

V.A. Liseykin, I.A. Tozhokin, O.A. Volnukhin, M.N. Churin, O.Yu.Urakhov

The complex of control-information systems and emergency protection systems applied for automatization of test facilities of liquid rocket engines and launch vehicles is describes. The paper gives structure, characteristics and brief description control-information systems in connection with tests preparation and carrying out.

Keywords: control-information system; emergency protection system; facilities for tests.

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New Environmental Impact Assessments of Advanced Rocket Systems
with High Boiling Components LPE
(p. 38 – 46)

A.V. Vladimirov, V.D. Borisenko, M.V. Hmelschikov

The comparative characteristics of liquid rocket engines as per their impact on the Earth’s atmosphere during their operation are considered. A comparative integrated assessment of the environmental safety of propulsion system operatingon with different propellant components also shown.

Keywords: ecological safety; environment; engine; rocket; propellant component.

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Aspects of Joint Activity of the Enterprises NGO  Technomash and Research and Test Centre of Rocket and Space Industry (p. 47 – 49)

G.L. Usov, A.V. Kologov

Data about joint activity NGO Technomash and SIC RCP on some question of processing and the analysis of processes in gazo-liquid systems are presented at bench tests of installations with the liquid rocket engine.

Keywords: bench tests; tank; pressure; temperature; gas pillow; refuelling.

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Problems of Creating Full-Scale Loading Means Hydraulic Jacks-Brakes During Bench Tests (p. 50 – 60)

A.P. Korotaevsky

The issues of creating a stand and a pneumo-hydraulic loading device for testing hydraulic jacks-brakes are considered. The possibility of providing full-scale or pre-specified loading conditions for hydraulic jacks, brakes, short-stroke hydraulic jacks and buffers of small and medium power in terms of kinematic, dynamic and power parameters is shown.

Keywords: launch complex; hydraulic jack brake; stand; tests; full-scale loading.

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