HEAT LOSSES DURING TRAIN MOVEMENT IN AN UNDERGROUND TUNNEL UNDER VARIOUS OPERATING CONDITIONS
I. V. Lugin, E. L. Alferova
Chinakal Institute of Mining of the Siberian Branch of the Russian Academy of Sciences, Novosibirsk, Russia
Keywords: Железнодорожный тоннель, тоннельная вентиляция, метод конечных объемов, тепловой поток, теплопотери, наледеобразование, Railway tunnel, tunnel ventilation, finite volume method, heat flow, heat losses, aufeis formation
Abstract
The results of numerical simulation of heat exchange between a train and tunnel air in the cold season are presented for the tunnels operated in severely continental climate of Siberia and the Far East. The simulation was carried out in an unsteady plane axisymmetric formulation. The dependences for the heat balance components of transport tunnels on the outdoor temperature and portal equipment operating modes are obtained.
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