STUDY OF VACUUM HEAT-INSULATION OF THE PASSENGER CAR
A solid-state model of vacuum heat-insulation of a passenger wagon in the form of sandwich panels, including heat-insulating products of a honeycomb profile, the inner cavity of which is vacuumed, has been developed. Profiles of vacuum insulation products made of polyamide have been developed, which provide a decrease in the thermal conductivity of the wall the passenger wagon by 48 % at approximately equal wall thickness compared with the existing model of the wagon 61-4440 or a decrease in the wall thickness by half and a decrease in the mass of the passenger wagon by 927 kg at approximately equal thermal conductivity.