H2 FCEVs are considered a potential enabler for the future decarbonization of the transportation sector, in particular in the medium and heavy-duty sectors. In present days, FCEV technology is still characterized by a quite high cost of both hardware systems and of the H2 fuel. Active thermal management systems in FCEVs must be considered not only as a key enabler of the safe operation of the vehicle, but also as one of the main actors that can contribute to the improvement in the fuel efficiency that will participate to the reduction of the pay-back period of the FCEVs. Furthermore, this aspect is much more important when complex thermal architectures have to be considered for medium and heavy-duty vehicles such as Busses, Trains and Refrigerated Trucks, in which a great role is played by the thermal requirements of the HVAC system.This publication presents a detailed optimization activity of the thermal energy distribution between sources and sinks, aimed to minimize the energy consumption on a specific H2 Fuel Cell-based urban bus application. The proposed optimization methodology is based on a detailed thermal model of the complex fuel cell urban bus architecture, capable to evaluate the effect of different Active Thermal Management architectures and control strategies on fuel consumption. Using a DOE style approach, multiple Active Thermal Management configurations (both at powertrain and vehicle conditioning level) will be evaluated on typical Urban BUS homologation cycles, estimating the fuel consumption trade-offs, in order to define the best Thermal Management configuration for H2 consumption minimization.
Evaluation of the Optimal Thermal Energy Distribution Layouts on Medium/Heavy Duty FCEVs
Sae Technical Papers
SAE Powertrains, Fuels & Lubricants Conference & Exhibition ; 2022
2022-08-30
Aufsatz (Konferenz)
Englisch
Evaluation of the Optimal Thermal Energy Distribution Layouts on Medium/Heavy Duty FCEVs
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