Development of dispensing hardware for safe fueling of heavy duty vehicles

Conference · Tue Sep 21 04:00:00 EDT 2021 · ICHS Peer Reviewed Conference Paper

OSTI ID:1804743

Quong, Spencer ^[1]; Aguilar, Joan ^[2]; Mayer, Raphael ^[2]; Garlock, Sarah ^[3]; Paffhausen, Chad ^[3]

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1. Quong & Associates, Inc., San Francisco, CA (United States); Electricore, Inc.
2. WEH GmbH Verbindungstechnik, Illertissen (Germany)
3. Bennett Pump Company, Spring Lake, MI (United States)

The development of safe dispensing equipment for the fueling of heavy duty (HD) vehicles is critical to the expansion of this newly and quickly expanding market. This paper discusses the development of a HD dispenser and nozzles assembly (nozzle, hose, breakaway) for these new, larger vehicles where flow rates are more than double compared to light duty (LD) vehicles. This equipment must operate at nominal pressures of 700 bar, -40o C gas temperature, and average flow rate of 5-10 kg/min at a high throughput commercial hydrogen fueling station without leaking hydrogen. The project surveyed HD vehicle manufacturers, station developers, and component suppliers to determine the basic specifications of the dispensing equipment and nozzle assembly. The team also examined existing codes and standards to determine necessary changes to accommodate HD components. From this information, the team developed a set of specifications which will be used to design the dispensing equipment. In order to meet these goals, the team performed computational fluid dynamic, pressure modelling, and temperature analysis in order to determine the necessary parameters to meet existing safety standards modified for HD fueling. The team also considered user, operational, and maintenance requirements, such as freeze lock which has been an issue which prevents the removal of the nozzle from LD vehicles. The team also performed a failure mode and effects analysis (FMEA) to identify the possible failures in the design. The dispenser and nozzle assembly will be tested separately, and then installed on an innovative, HD fueling station which will use a HD vehicle simulator to test the entire system.

• Research Organization: Electricore, Inc., Santa Clarita, CA (United States)
• Sponsoring Organization: USDOE Office of Energy Efficiency and Renewable Energy (EERE)
• DOE Contract Number: EE0008817
• OSTI ID: 1804743
• Conference Information: Journal Name: ICHS Peer Reviewed Conference Paper
• Country of Publication: United States
• Language: English

Related Subjects

08 HYDROGEN
breakaway
bus
dispenser
dispensing
heavy duty
hose
hydrogen
nozzle
truck