Real-World Applications

H2SE conducts research, development and demonstration (RD&D) activities that included modeling, analysis and assessments of material-based storage system technologies. Materials development and assessment activities are the scope of Hydrogen Storage Engineering to further develop advanced technologies to meet the DOE's targets. Our research team is successfully developing hydrogen and fuel cell technologies that are being tested in real-world applications.

System Project Graphs

RD&D Accomplishments

Achievements made by the partners within Hydrogen Storage Engineering during 2017 - Present.

Modeling Efforts

As part of the H2SEs modeling effort, it was found useful to develop simplified models that can quickly estimate optimal loading and discharge kinetics, effective hydrogen capacities, system dimensions, and heat removal requirements of various materials based hydrogen storage system designs. Parameters obtained from these models were then used as inputs into the detailed models to obtain an accurate assessment of system performance that includes more complete integration of the physical processes. In addition, to meet the objectives of the Center, there was a need to quickly and efficiently evaluate various materials based storage systems and to compare their performance against DOE light duty vehicle targets. To accomplish this task, a modeling approach was created that enabled the exchange of one hydrogen storage system for another while keeping the vehicle and fuel cell systems constant. As such a modeling “framework” that was used for system evaluation and comparison by the Center was developed. The framework was used to implement the integrated vehicle, the power plant, and the storage system models. This framework tool was used across the engineering center to evaluate candidate storage system designs on a common vehicle platform with consistent set of assumptions.

It was felt, by DOE, that these models and the modeling framework could provide benefit to research efforts outside of the HSECoE and therefore should be made available to university and laboratory researchers working in this area. Below are select models, including the center modeling framework, that are available for download and use by the broad research community. Model descriptions, a user’s manual and presentations detailing the models validation are also available for download below. These models are open for use by material developers and storage system designers, but caution should be used when applying these models to materials and operating conditions that have not been validated. Please send any questions or comments to the technical assistance e-mail provided.

Click here to view our current publications and presentations.


2017-Current

  1. Brooks, K., D. Tamburello, S. Sprik, M. Thronton, (2018) "Design Tool for Estimating Chemical Hydrogen Storage System Characteristics for Light-Duty Fuel Cell Vehicles," International Journal of Hydrogen Energy, Volume 43, Issue 18, 3 May 2018, 8846-8858
  2. B. Hardy, D. Tamburello, C. Corgnale, (2018) "Hydrogen Storage Adsorbent Systems Acceptability Envelope," International Journal of Hydrogen Energy, Volume 43, Issue 42, 18 October 2018, 19528-19539

Coming Soon!

Completed the following modeling tasks:

  • Baseline fuel cell power plant models with physical storage fuel sources
  • Finite element models on metal hydrides and adsorbent system
  • Initial metal hydride hydrogen storage system models; includes various configurations of pressure vessels, buffer tanks, hybridization schemes, pumps and heat exchangers
  • Initial chemical hydride hydrogen storage system models; includes various configurations of mass transport mechanisms, spent fuel reservoirs and reactors
  • Initial adsorbent hydrogen storage system models; includes various configurations of heat exchangers, pressure vessels, buffer tanks and pumps.

Projects focused on improving methods:

  • Programming of HSSIM (Hydrogen Storage SIMulator) to aid in prediction of impact of technical targets
  • Coupling of vehicle modeling, fuel cell modeling and storage system modeling in a MatLab/Comsol/Simulink environment
  • Identifying acceptability criteria and UP/DOWN select methodology for Metal Hydrides, Chemical Hydrides and Adsorbent materials
  • Completing identification of parametric models to be used for Metal Hydride, Chemical Hydride and Adsorbent system thermal models
  • Compiling a database for each of the materials to be modeled and identified technical data gaps in the data with plans to fill these gaps
  • Completing an Acceptability Envelope for metal hydrides to aid in determination of the critical thermochemical characteristics required for storage system consideration
  • Identifying critical technologies for pressure vessels, sensing, insulation, thermal generation and fuel purity required to enable use of various storage system materials

Determined the current system technical target status of the following:

  • Metal hydrides based on NaAlH4 and technology gaps (gravimetric density, cycle life, safety and toxicity) needing to be addressed to meet the 2010 and 2015 technical targets
  • Chemical hydrides based on solid NH3BH3 and technology gaps (fuel purity, fill time, minimum full flow rate and loss of useable hydrogen) needing to be addressed to meet the 2010 and 2015 technical targets
  • Adsorbents based on super activated carbon and technology gaps (volumetric density, minimum delivery pressure and loss of useable hydrogen) needing to be addressed to meet the 2010 and 2015 technical targets

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