Abstract
Depletion of fossil fuels and environmental impact of their combustion currently represents a great concern. That is why research in energy field, where transportation represents a significant sector, is focused on finding solutions to match the increasing energy demand by consuming less fossil fuel and generating less emissions. In this approach, a combined gas and steam turbine propulsion system is proposed as alternative solution to reciprocating internal combustion engines (ICE) in road transport. Performance of this system is analysed in the paper. There are studied two configurations – with and without supplementary firing combustor after the gas turbine. The study indicates higher performance of the analysed system compared to the most advanced reciprocating ICE currently used in road transport sector. Besides, it reveals that supplementary firing should be avoided in typical operating conditions since increases specific fuel consumption and reduces efficiency.
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