Optimization of hydrogen charging process parameters for an advanced complex hydride reactor concept

Bhouri, Maha; Bürger, Inga; Linder, Marc

doi:10.1016/j.ijhydene.2014.08.100

Cited by 8 publications

(14 citation statements)

References 17 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…As this layer consists of a thin stainless steel mesh, the heat and mass transfer resistances at this boundary are negligible. The thickness of the stainless steel wall d S.S separating the hydride container from the heat transfer fluid is considered according to the following equation [12] …”

Section: Model Formulationmentioning

confidence: 99%

“…In a previously published study, an optimum geometry for a combination reactor has been determined with respect to a short filling time leading to a reactor with a geometry of d MeH ¼ 10 mm and x ¼ 1.25 [12]. In this section, it is now studied whether this radial geometry determined for absorption is also useful for the constraints that apply during desorption operation.…”

Section: Optimum Reactor Design For Desorptionmentioning

confidence: 99%

“…Based on the validated model for two reference materials, it is now possible to investigate various suitable tank designs. E.g., in a recent study, the absorption process has been investigated and an optimal geometry for the reference materials has been defined [12]. As for motive applications the fuelling of the gas has to be very fast, the absorption process is very sensitive towards reactor geometry and material properties.…”

Section: Introductionmentioning

confidence: 99%

“…The design of the basic reactor geometry for this study has been taken from the previously published optimization process of the absorption reaction [12]. Starting from this publication, it will be first checked whether this geometry is also suitable for a generalized desorption scenario.…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Considerations on the H2 desorption process for a combination reactor based on metal and complex hydrides

Bürger

Bhouri

Linder

2015

International Journal of Hydrogen Energy

View full text Add to dashboard Cite

a b s t r a c tHydrogen storage systems based on the combination reactor concept are promising for application of future complex hydride materials with high storage capacities and low reaction kinetics at moderate operating temperatures. In such reactors, a fast reacting metal hydride is added to a complex hydride material in a separate compartment of the tank combining the advantages of the high storage capacity of the complex hydride with the high reaction rate of the metal hydride. In the present publication, three issues regarding the desorption performance of such a reactor are discussed based on analytical considerations and 1D simulations.First, it is studied whether the optimal reactor design based on a tubular geometry that has been previously determined for the absorption reaction also enables satisfying desorption performances. It can be concluded from the corresponding simulations that based on the properties of the present reference materials LaNi 4.3 Al 0.4 Mn 0.7 and 2 LiNH 2 e1.1 MgH 2 e0.1LiBH 4 e3 wt.% ZrCoH 3, the hydrogen desorption performance of the materials in this reaction geometry is good. Second, it is shown that besides the geometry of the reactor, also its module size is important, as it can be crucial for the thermal management during the desorption. A methodology was developed that allows to analytically determine a first estimate for the best minimum module size configuration e only based on the desorption rate of the basic material. This approach is confirmed by time dependent 1D simulations applying a validated model for the reference materials. Third, the influence of a realistic periodic desorption load on the performance of a combination reactor is studied. The results clearly show that since the addition of a MeH material enables much smaller module sizes, it is advantageous for the thermal management of complex hydride based reactors and increases their flexibility.

show abstract

Section: Model Formulationmentioning

confidence: 99%

Section: Optimum Reactor Design For Desorptionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Considerations on the H2 desorption process for a combination reactor based on metal and complex hydrides

Bürger

Bhouri

Linder

2015

International Journal of Hydrogen Energy

View full text Add to dashboard Cite

show abstract

“…Modeling can be used to optimize the structure and operating strategy in the design of a packed bed reactor. Bhouri et al[73,74] performed simulation to optimize the configuration of a…”

mentioning

confidence: 99%

Gas–solid thermochemical heat storage reactors for high-temperature applications

Pan

Zhao

2017

Energy

105

View full text Add to dashboard Cite

Review on Li–Mg–N–H-based lightweight hydrogen storage composites and its applications: challenges, progress and prospects

Li,

Luo

et al. 2023

J Mater Sci

View full text Add to dashboard Cite

Optimization of hydrogen charging process parameters for an advanced complex hydride reactor concept

Cited by 8 publications

References 17 publications

Considerations on the H2 desorption process for a combination reactor based on metal and complex hydrides

Considerations on the H2 desorption process for a combination reactor based on metal and complex hydrides

Gas–solid thermochemical heat storage reactors for high-temperature applications

Review on Li–Mg–N–H-based lightweight hydrogen storage composites and its applications: challenges, progress and prospects

Contact Info

Product

Resources

About