HOERBIGER Division Automotive

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Passive Recirculation on a new level

Fuel cells will make a significant contribution to the decarbonization of industry in both stationary and mobile applications. Two decisive success factors for this are a further significant increase in efficiency and an equally significant reduction in costs.

In modern fuel cell architectures, the hydrogen provided for the reaction is recirculated in a closed anode circuit. If the enthalpy stored in the hydrogen gas is used for this purpose, for example by means of a jetpump, this is referred to as passive recirculation. Compared to conveying the anode gas by means of a blower, this has clear advantages in terms of costs, weight and installation space - however, conventional concepts are limited in performance, especially in low-load operation.

HOERBIGER shows a pulsed system with multiple injection that multiplies the recirculation rate in the low-load range. This means that the blower can be substituted completely in most applications or at least downsized significantly.

Want to learn more and meet the experts in person?

⏩ Visit the HOERBIGER Division Automotive team at their booth 2B35 on 04 and 05 October 2022!