Design optimization of a 0.1-ton/day active magnetic regenerative hydrogen liquefier
✍ Scribed by L Zhang; S.A Sherif; A.J DeGregoria; C.B Zimm; T.N Veziroglu
- Publisher
- Elsevier Science
- Year
- 2000
- Tongue
- English
- Weight
- 411 KB
- Volume
- 40
- Category
- Article
- ISSN
- 0011-2275
No coin nor oath required. For personal study only.
✦ Synopsis
A design optimization procedure of a 0.1-ton/day active magnetic regenerative (AMR) hydrogen lique®er model is described. The lique®er is proposed for the industrial liquid hydrogen market with overall eciency being the primary measure of performance. This performance is described here in terms of particle size, bed length, and inter-stage temperature. Eciency comparable to larger gas cycle plants is predicted. The magnetic lique®er may be modi®ed to operate as a two-stage magnetic refrigerator between 77 and 20 K with high eciency. The paper describes an optimization method as applied to the design of a two-stage AMR hydrogen lique®er and presents the associated results. A ®ve-parameter optimization process is performed since there are ®ve changeable parameters; the low-and high-stage particle sizes, the low-and high-stage bed lengths, and the inter-stage temperature. Model results are presented and compared with experimental results of an actual lique®er.