Hydrogen is set to play a strategic role in the decarbonisation of the transportation sector. However, comprehensive analyses from a life-cycle perspective are required to check the environmental suitability of hydrogen energy systems. In this regard, the standardised methodology of life cycle assessment (LCA) is widely applied. In a previous article [1], the role played by hydrogen as the fuel in the life-cycle environmental performance of a fuel cell passenger car was explored for three different hydrogen production technologies. The results showed that the choice of hydrogen production technology significantly affects the whole life-cycle performance of vehicles. Renewable-based hydrogen especially when produced through wind power electrolysis (WPE) was identified as the preferred fuel option. When using hydrogen from WPE, the ratio hydrogen impact to total impact of the whole system dropped to values around 20% or less, shifting the main contribution from the fuel to the vehicle infrastructure. Considering this result as the background, the aim of this conference contribution is to identify the environmentally preferred hydrogen-fuelled vehicle among different alternatives. For this goal, the environmental life-cycle performance of five passenger vehicles employing hydrogen from WPE (solely or as an additional fuel) was assessed. The comparative study was performed using a compressed natural gas (CNG) vehicle and its hybrid version (HEV CNG) as the benchmarks. Hybrid electric vehicles (HEV) are partially electrified vehicles, consisting mainly of an internal combustion engine, an electric motor, and a small battery. Three car options fuelled only by hydrogen were considered: (i) a fuel cell electric vehicle (FCEV), (ii) a hydrogen car equipped with an internal combustion engine (H2ICE), and (iii) a hybrid car fuelled with hydrogen (HEV H2ICE). Besides, two additional vehicles using hydrogen as an additional fuel were evaluated: (iv) a hythane vehicle equipped with an internal combustion engine fed with a ...
Comparative life cycle assessment of hydrogen-fuelled passenger cars
2020-01-01
Aufsatz (Konferenz)
Elektronische Ressource
Englisch
LCA , hydogen , passenger cars
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