Controlling of train’s interior heating system for maximum energy efficiency

摘要

Heating systems in diesel multiple unit (DMU) trains often use additionalmechanical and/or electrical auxiliary power, increasing fuel consumption, while wasteheat is available from the diesel engine. Delivery of waste heat for heating of multiplecarriages is analysed as realized in DR1 and D1 series trains, in light of the currentstandards of passenger comfort and in-depth testing of DR1B trains. A new hybrid hot airand electrical heating system and its control algorithm is reviewed for modernizedDR1AC trains of Latvian railways, capable of extracting waste heat from three differentsources and supplemented by two additional sources in case of shortage, for fullconformance to EN 14750-1 standard. Results of factory testing are included.