Development of a Vehicle-Level Simulation Model for Evaluating the Trade-Off between Various Advanced On-Board Hydrogen Storage Technologies for Fuel Cell Vehicles

System Design, Analysis, and Modeling Activities Supporting the DOE Hydrogen Storage Engineering Center of Excellence (HSECoE): Final Project Report

“…To meet the objectives of the HSECoE, there was a need to quickly and efficiently evaluate various materials-based storage systems and to compare their performance against DOE hydrogen storage targets for light-duty vehicles. 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 [1]. Figure 1 shows a block diagram of the modeling "framework" that was used for system evaluation and comparison by the HSECoE.…”

“…Similarly, the range is then calculated from the adjusted and weighted UDDS and HWFET figure and not simply the cycles' miles achieved until the storage system is empty. The test matrix was found to be a key means of evaluating the fuel economy, range, and other vehicle-level performance features of the storage systems on a common and comparable basis [1]. The following sections show the results for fuel economy, range, and onboard efficiency for the various materials-based storage systems compared with compressed gas systems for HSECoE Phases 1, 2, and 3.…”

Hydrogen Storage Engineering Center of Excellence Metal Hydride Final Report

“…Similarly, the range is then calculated from the adjusted and weighted UDDS and HWFET figure and not simply the miles achieved until the hydrogen storage system is empty. The test matrix was found to be a key in providing a means to evaluate the fuel economy, range, and other vehicle level performance feature of the storage systems on a common and comparable basis [41]. Table 11 shows the simulated fuel economy, range estimates and onboard efficiency, from case 1 of the modeling framework, for the NaAlH 4 and TiCrMn systems as well as the results for the 350 and 700 bar compressed gas systems for comparison.…”

Compact Cryo-Adsorbent Hydrogen Storage Systems for Fuel Cell Vehicles

“…With respect to adsorbents, the HSECoE sought to create predictive adsorbent hydrogen storage computational models that have been validated experimentally by both excess adsorption measurements and laboratory-scale prototype adsorbent system evaluation. Hardy et al [14] created hydrogen adsorption computational models for the HSECoE, which formed the basis for the adsorbent storage system design parametric study [15] and have been included in the HSECoE's full-scale vehicle framework model [16,17]. Both the vehicle framework and the stand-alone design tool used in the parametric studies are available for download from the HSECoE's webpage (www.hsecoe.org).…”