Performance assessment of 700-bar compressed hydrogen storage for light duty fuel cell vehicles
| Autor: | Rajesh K. Ahluwalia, Hee-Seok Roh, Thanh Q. Hua |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
Materials science
Hydrogen Renewable Energy Sustainability and the Environment Composite number Vinyl ester Energy Engineering and Power Technology chemistry.chemical_element 02 engineering and technology Epoxy Flange 010402 general chemistry 021001 nanoscience & nanotechnology Condensed Matter Physics 01 natural sciences 0104 chemical sciences Fuel Technology chemistry visual_art Storage tank visual_art.visual_art_medium Fiber Composite material 0210 nano-technology Compressed hydrogen |
| Zdroj: | International Journal of Hydrogen Energy. 42:25121-25129 |
| ISSN: | 0360-3199 |
| DOI: | 10.1016/j.ijhydene.2017.08.123 |
| Popis: | Type 4 700-bar compressed hydrogen storage tanks were modeled using ABAQUS. The finite element model was first calibrated against data for 35-L subscale test tanks to obtain the composite translation efficiency, and then applied to full sized tanks. Two variations of the baseline T700/epoxy composite were considered in which the epoxy was replaced with a low cost vinyl ester resin and low cost resin with an alternate sizing. The results showed that the reduction in composite weight was attributed primarily to the lower density of the resin and higher fiber volume fraction in the composite due to increased squeeze-out with the lower viscosity vinyl ester resin. The system gravimetric and volumetric capacities for the onboard storage system that holds 5.6 kg H 2 are 4.2 wt% (1.40 kWh/kg) and 24.4 g-H 2 /L (0.81 kWh/L), respectively. The system capacities increase and carbon fiber requirement decreases if the in-tank amount of unrecoverable hydrogen is reduced by lowering the tank “empty” pressure. Models of an alternate tank design showed potential 4–7% saving in composite usage for tanks with a length-to-diameter (L/D) ratio of 2.8–3.0 but no saving for L/D of 1.7. A boss with smaller opening and longer flange does not appear to reduce the amount of helical windings. |
| Databáze: | OpenAIRE |
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