Advanced materials for next-generation fuel cells

Yurukcu, Mesut; Yurtsever, Fatma M.; Demirel, Serkan; Saldaña, Jorge; Sarı, Müfrettin Murat

doi:10.1016/b978-0-12-824379-4.00003-3

Cited by 1 publication

(1 citation statement)

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“…Figure 3 shows the typical current-voltage-behaviour of a fuel cell. [7] Figure 3: Fuel cell current-voltage-behaviour [7] 3. POWER REQUIREMENT…”

Section: State Of the Artmentioning

confidence: 99%

Hydrogen Powered Hydraulic Powerpack

Trommler,

Hänel,

Will

2024

14th International Fluid Power Conference

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A general challenge in the construction machinery sector is that 90% of the current fleet of machines uses diesel as fuel. In contrast to the positive developments in the field of particle mass and nitrogen oxide emissions, CO2 emissions are stagnating at a constantly high level. The use of hydrogen fuel cell technology results in CO2 neutral operation and is in line with current CO2 reduction policies. A hydrogen driven powerpack is used to generate hydraulic power, which is then used to drive a stationary concrete pump. This paper deals with the transformation of a conventional drive system to a fuel cell drive system. Furthermore, two different fuel cell operating strategies are discussed. The challenge in using fuel cells is that due to the efficiency and the balance of plant components about 50 % of the electrical power is converted into heat. Furthermore, the volumetric energy density of hydrogen currently limits the unrestricted use of the CO2 neutral fuel. As a result, a sufficiently large cooling system must be kept in place. If the same performance and the same operating time shall be achieved as with a conventional diesel combustion machine, it results an increase of the installation space by a factor up to 8 for a fuel cell drive. For the use of such machines, it is important to ensure that future construction sites have an appropriately prepared H2 infrastructure.

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“…Figure 3 shows the typical current-voltage-behaviour of a fuel cell. [7] Figure 3: Fuel cell current-voltage-behaviour [7] 3. POWER REQUIREMENT…”

Section: State Of the Artmentioning

confidence: 99%