Design Studies for Hydrogen Fuel Cell Powered Unmanned Aerial Vehicles

2008 ◽  
Author(s):  
Thomas Bradley ◽  
Blake Moffitt ◽  
Thomas Fuller ◽  
Dimitri Mavris ◽  
David Parekh
Keyword(s):  
Fuel Cell ◽  
Unmanned Aerial Vehicles ◽  
Hydrogen Fuel Cell ◽  
Hydrogen Fuel ◽  
Design Studies ◽  
Aerial Vehicles

Sensing advancement towards safety assessment of hydrogen fuel cell vehicles

2021 ◽  
Vol 489 ◽  
pp. 229450
Author(s):  
Sahar Foorginezhad ◽  
Masoud Mohseni-Dargah ◽  
Zahra Falahati ◽  
Rouzbeh Abbassi ◽  
Amir Razmjou ◽  
...  
Keyword(s):  
Fuel Cell ◽  
Safety Assessment ◽  
Fuel Cell Vehicles ◽  
Hydrogen Fuel Cell ◽  
Hydrogen Fuel ◽  
Hydrogen Fuel Cell Vehicles

scholarly journals Comparative TCO Analysis of Battery Electric and Hydrogen Fuel Cell Buses for Public Transport System in Small to Midsize Cities

Energies ◽  
2021 ◽  
Vol 14 (14) ◽  
pp. 4384
Author(s):  
Hanhee Kim ◽  
Niklas Hartmann ◽  
Maxime Zeller ◽  
Renato Luise ◽  
Tamer Soylu
Keyword(s):  
Fuel Cell ◽  
Transport System ◽  
Public Transport ◽  
Transport Sector ◽  
Hydrogen Fuel Cell ◽  
Hydrogen Fuel ◽  
Fuel Cost ◽  
The Public ◽  
Public Transport System ◽  
Bus Body

This paper shows the results of an in-depth techno-economic analysis of the public transport sector in a small to midsize city and its surrounding area. Public battery-electric and hydrogen fuel cell buses are comparatively evaluated by means of a total cost of ownership (TCO) model building on historical data and a projection of market prices. Additionally, a structural analysis of the public transport system of a specific city is performed, assessing best fitting bus lines for the use of electric or hydrogen busses, which is supported by a brief acceptance evaluation of the local citizens. The TCO results for electric buses show a strong cost decrease until the year 2030, reaching 23.5% lower TCOs compared to the conventional diesel bus. The optimal electric bus charging system will be the opportunity (pantograph) charging infrastructure. However, the opportunity charging method is applicable under the assumption that several buses share the same station and there is a “hotspot” where as many as possible bus lines converge. In the case of electric buses for the year 2020, the parameter which influenced the most on the TCO was the battery cost, opposite to the year 2030 in where the bus body cost and fuel cost parameters are the ones that dominate the TCO, due to the learning rate of the batteries. For H2 buses, finding a hotspot is not crucial because they have a similar range to the diesel ones as well as a similar refueling time. H2 buses until 2030 still have 15.4% higher TCO than the diesel bus system. Considering the benefits of a hypothetical scaling-up effect of hydrogen infrastructures in the region, the hydrogen cost could drop to 5 €/kg. In this case, the overall TCO of the hydrogen solution would drop to a slightly lower TCO than the diesel solution in 2030. Therefore, hydrogen buses can be competitive in small to midsize cities, even with limited routes. For hydrogen buses, the bus body and fuel cost make up a large part of the TCO. Reducing the fuel cost will be an important aspect to reduce the total TCO of the hydrogen bus.

scholarly journals Performance analysis of hydrogen fuel cell with two-stage turbo compressor for automotive applications

2021 ◽  
Vol 7 ◽  
pp. 2635-2646
Author(s):  
Nabeel Ahsan ◽  
Ans Al Rashid ◽  
Asad A. Zaidi ◽  
Ramsha Imran ◽  
Sikandar Abdul Qadir
Keyword(s):  
Fuel Cell ◽  
Performance Analysis ◽  
Hydrogen Fuel Cell ◽  
Automotive Applications ◽  
Hydrogen Fuel ◽  
Two Stage ◽  
Turbo Compressor

How early hydrogen fuel cell vehicle adopters geographically evaluate a network of refueling stations in California

2020 ◽  
Vol 89 ◽  
pp. 102897 ◽  
Author(s):  
Scott Kelley ◽  
Aimee Krafft ◽  
Michael Kuby ◽  
Oscar Lopez ◽  
Rhian Stotts ◽  
...  
Keyword(s):  
Fuel Cell ◽  
Fuel Cell Vehicle ◽  
Hydrogen Fuel Cell ◽  
Hydrogen Fuel
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