Effect of pressure, composition and temperature characteristics on thermal response and overall reaction rates in a metal hydride tank
โ Scribed by Agung Tri Wijayanta; Koichi Nakaso; Takuro Aoki; Yusuke Kitazato; Jun Fukai
- Publisher
- Elsevier Science
- Year
- 2011
- Tongue
- English
- Weight
- 597 KB
- Volume
- 36
- Category
- Article
- ISSN
- 0360-3199
No coin nor oath required. For personal study only.
โฆ Synopsis
The effects of pressure, composition and temperature (PCT) characteristics on the thermal response and overall reaction rates in a packed bed reactor of metal hydrides have been investigated at both constant and variable hydrogen pressures. LaNi 5 particles were used as the alloys for metal hydride formation inside a 50 mm i.d. ร 185 mm height cylindrical reactor. Predictions of the thermal response and overall reaction rates were also carried out using three distinct models for the PCT characteristics: one based on Van't Hoff's equation [refer to Mayer et al. J Less Common Met 1987; 131: 235e44], another developed by [Jemni and Nasrallah. Int J Hydrogen Energy 1995; 20: 43e52, 881e891] and a new model and compared with the experimental results. The transient local bed temperature and reaction rate obtained from the predictions strongly depend on the model chosen for the PCT characteristics. Our new model provides good agreement with experiments.
๐ SIMILAR VOLUMES