The discussion focuses on application of used turbojet two-circuit engines in heating of long railway tunnels under harsh climate conditions in cold seasons. In terms of the longest Severomuisky Tunnel in the Baikal–Amur Mainline, the heat deficiency in a railway tunnel due to heating of a train after long stay in cold air is determined. The air heating equipment installed in the tunnel has insufficient capacity to compensate the heat loss and preserve the required positive air temperature in the tunnel. The heat deficiency in the tunnel when a train moves in it makes 10 MW when the ambient air temperature is -40 °C. The author proposes using turbojet two-circuit engines to compensate heat loss and to feed heated air in the tunnel. The air flow heating capacity is calculated in terms of turbojet engine D-36. It is illustrated that the aircraft engine generates sufficient capacity to compensate heat loss due to heating a cold train in the tunnel. There are two variants of tunnel air heating: 1—using a heat interchanger between coal and hot circuits with air flow from the cold circuit only; 2—air feed from the cold and hot circuits simultaneously. The second variant is analyzed in more detail. The turbojet supply alternatives with liquid and gas fuels are discussed. The alternatives of liquid and gas fuels are compared in terms of efficiency of turbojet engine by the criteria of economy and maintainability of the required air composition in the tunnel. The advantage of liquefied hydrocarbon gas as the turbojet engine fuel is validated.


Railway tunnel, turbojet two-circuit engine, heating capacity, heat-and-ventilation plant, kerosene, hydrocarbon gas, combustion products.

Issue number: 2
Year: 2018
UDK: 621.45;62-6
DOI: 10.25018/0236-1493-2018-2-0-103-110
Authors: Lugin I. V., Krasyuk A. M., Kulikova O. A.

About authors: Lugin I.V. (1), Candidate of Technical Sciences, Assistant Professor, Senior Researcher, е-mail:, Krasyuk A.M. (1,2), Doctor of Technical Sciences, Professor, Chief Researcher, Kulikova O.A. (2), Student, 1) Chinakal Institute of Mining of Siberian Branch of Russian Academy of Sciences, 630091, Novosibirsk, Russia, 2) Novosibirsk State Technical University, 630073, Novosibirsk, Russia.


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