kscarbel2 Posted June 12, 2016 Share Posted June 12, 2016 Green Car Congress / June 10, 2016 The US Department of Energy’s (DOE’s) Fuel Cell Technologies Office (FCTO) has issued a request for information (RFI) (DE-FOA-0001600) to obtain feedback and opinions from truck operators, truck and storage tank manufacturers, fuel cell manufacturers, station equipment designers, and other related stakeholders on issues related to medium- and heavy-duty (MD and HD) fuel cell electric truck targets. The MD/HD market spans multiple weight classes (i.e. class 3-8 or 10,000-80,000+ lbs.) and vocational uses (i.e. delivery van, tractor trailer, flatbed, etc.). Today, MD/HD trucks account for 28% of petroleum use in the US transportation sector, according to the US Energy Information Administration (EIA). A key activity within FCTO, with industry input, is setting technology targets for future years (e.g., 2020) based on what is required to be competitive with incumbent or other advanced technologies. These can then be used by stakeholders to help track performance and set technology benchmarks. Currently, FCTO has targets in several areas, including hydrogen production, delivery, storage, and fuel cells for light-duty vehicles. FCTO developed a set of basic vehicle specification by Class and by vocational application, rangin from a Class 2 Van (135 kW motor continuous power, 155 kW fuel cell power with 7 kh H2 stored on board and a range of 150 miles) to a Class 8 Tractor Trailer (260 kW motor continuous power, 265 kW fuel cell power, 62 kg H2 onboard and a range of 400 miles. FCTO set fuel economy targets for each weight class to reduce the confusion of one normalized target that would span all weight classes. Power system cost is normalized based on the fuel cell stack size required for each vehicle. The vehicle range target suggested is comparable to light duty vehicles at 300 miles, however, some truck designs may require more or less range depending on vocational use. Lifetime targets and maintenance costs suggested are based on fuel cell bus targets. Proposed targets for the fuel cell trucks are: Proposed Fuel Economy Target (miles/kg H2) for 2025 Class 3 Class 4 Class 5 Class 6 Class 7 Class 8 26 20 18 16 14 12 Proposed 2025 Targets for MD/HD Fuel Cell Electric Trucks, Class 3 - Class 8 Vehicle operation Vehicle Lifetime [years/miles] 12/500,000 Power Plant Lifetime [hours] 25,000 Power System Cost [$/kW] 160 Scheduled and Unscheduled Maintenance Cost5 [$/mile] 0.4 Vehicle Range [miles] 300 Fuel cell system FC System Power Density [W/L] 850 FC System Specific Power [W/kg] 650 Hydrogen storage Storage Tank Gravimetric Capacity [kg H2/kg storage tank] 5 Storage Tank Volumetric Capacity [kg H2/100 L] 700 bar/350 bar 3.8/2.2 Hydrogen Storage System Cost [$/kg H2 stored] 266 Operation Cycle Life (1/4 tank to full) [cycles] 2,500 System Fill Rate [kg H2/min] 5 Quote Link to comment Share on other sites More sharing options...
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