Abstract
A dynamic fueling model is built to simulate the fueling process of a hydrogen tank with an integrated passive cooling system. The study investigates the possibility of absorbing a part of the heat of compression in the high latent-heat material during melting, with the aim of keeping the walls below the critical temperature of 85 °C, while filling the hydrogen at ambient temperature. Results show that a 10-mm-thick layer of paraffin wax can absorb enough heat to reduce the adiabatic temperature by 20 K when compared to a standard Type IV tank. The heat transfer from the gas to the phase change material, mainly occurs after the fueling is completed, resulting in a higher hydrogen peak temperature inside the tank and a lower fuelled mass than a gas-cooled system. Such a mass reduction accounts for 12% with respect to the case of a standard tank system fuelled at -40 °C.
| Original language | English |
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| Title of host publication | Proceedings of The 10th International Green Energy Conference |
| Number of pages | 4 |
| Publication date | 2015 |
| Article number | IGEC-2015-1458 |
| Publication status | Published - 2015 |
| Event | 10th Annual Green Energy Conference - Taichung, Taiwan, Province of China Duration: 24 May 2015 → 27 May 2015 Conference number: 10 |
Conference
| Conference | 10th Annual Green Energy Conference |
|---|---|
| Number | 10 |
| Country | Taiwan, Province of China |
| City | Taichung |
| Period | 24/05/2015 → 27/05/2015 |
Keywords
- Phase change material
- Hydrogen storage
- Hydrogen fueling
- Dynamic model
- Heat transfer