Article
Version 1
Preserved in Portico This version is not peer-reviewed
Expansion Work Recovery of Hydrogen for a FC-Truck-Tentative Design of an Expansion Machine
Version 1
: Received: 16 June 2023 / Approved: 19 June 2023 / Online: 19 June 2023 (08:44:57 CEST)
A peer-reviewed article of this Preprint also exists.
Rufer, A. Expansion Work Recovery of Hydrogen for a FC-Truck-Tentative Design of an Expansion Machine. Inventions 2023, 8, 89. Rufer, A. Expansion Work Recovery of Hydrogen for a FC-Truck-Tentative Design of an Expansion Machine. Inventions 2023, 8, 89.
Abstract
Hydrogen powered vehicles use high-pressure reservoirs from which the gas is transferred to the low-pressure fuel-cell via a classical pressure reduction valve. In these systems no expansion work is recovered and the question is addressed of the potential to increase the global efficiency by using an expansion machine between the reservoir and the electrochemical reactor. This paper investigates the feasibility of such an expansion machine, evaluates the mechanical constraints in terms of forces, torques and produced power by numeric simulation. It further evaluates the energetic contribution to the whole conversion chain from the hydrogen reservoir to the common electrical network on board. A low energy contribution of the expansion system addresses the question of the real benefit of such an investment.
Keywords
Hydrogen propulsion system; expansion work; expansion turbine; pressure reduction; energy efficiency
Subject
Engineering, Energy and Fuel Technology
Copyright: This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Comments (0)
We encourage comments and feedback from a broad range of readers. See criteria for comments and our Diversity statement.
Leave a public commentSend a private comment to the author(s)
* All users must log in before leaving a comment
