Abstract
Metal hydride (MH) attracts considerable attention for not only hydrogen storage devices but also chemical heat pumps (CHPs). Many previous researchers pointed out low effective thermal conductivity of MH packed bed resulted in low performance. Indeed, several attempts have been done to improve it. However, no guideline for improving the thermal performance with heat transfer enhancement has been discussed. In this study, thermal performance for a packed bed reactor of MH is numerically investigated. Diagrams for the heat transfer enhancement are developed according to the numerical results. The previous strategies to improve effective thermal conductivity can be combined with the diagrams for the practical use.
| Original language | English |
|---|---|
| Pages (from-to) | 1257-1263 |
| Number of pages | 7 |
| Journal | Journal of Chemical Engineering of Japan |
| Volume | 40 |
| Issue number | 13 |
| DOIs | |
| Publication status | Published - Dec 27 2007 |
| Externally published | Yes |
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Keywords
- Chemical heat pump
- Heat transfer enhancement
- Numerical
ASJC Scopus subject areas
- Chemical Engineering(all)
Cite this
Effect of heat transfer enhancement on energy release rate from a metal hydride tank. / Nakaso, Koichi; Shigenaga, Ryosuke; Fukai, Jun.
In: Journal of Chemical Engineering of Japan, Vol. 40, No. 13, 27.12.2007, p. 1257-1263.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Effect of heat transfer enhancement on energy release rate from a metal hydride tank
AU - Nakaso, Koichi
AU - Shigenaga, Ryosuke
AU - Fukai, Jun
PY - 2007/12/27
Y1 - 2007/12/27
N2 - Metal hydride (MH) attracts considerable attention for not only hydrogen storage devices but also chemical heat pumps (CHPs). Many previous researchers pointed out low effective thermal conductivity of MH packed bed resulted in low performance. Indeed, several attempts have been done to improve it. However, no guideline for improving the thermal performance with heat transfer enhancement has been discussed. In this study, thermal performance for a packed bed reactor of MH is numerically investigated. Diagrams for the heat transfer enhancement are developed according to the numerical results. The previous strategies to improve effective thermal conductivity can be combined with the diagrams for the practical use.
AB - Metal hydride (MH) attracts considerable attention for not only hydrogen storage devices but also chemical heat pumps (CHPs). Many previous researchers pointed out low effective thermal conductivity of MH packed bed resulted in low performance. Indeed, several attempts have been done to improve it. However, no guideline for improving the thermal performance with heat transfer enhancement has been discussed. In this study, thermal performance for a packed bed reactor of MH is numerically investigated. Diagrams for the heat transfer enhancement are developed according to the numerical results. The previous strategies to improve effective thermal conductivity can be combined with the diagrams for the practical use.
KW - Chemical heat pump
KW - Heat transfer enhancement
KW - Numerical
UR - http://www.scopus.com/inward/record.url?scp=38049031742&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=38049031742&partnerID=8YFLogxK
U2 - 10.1252/jcej.07WE156
DO - 10.1252/jcej.07WE156
M3 - Article
VL - 40
SP - 1257
EP - 1263
JO - Journal of Chemical Engineering of Japan
JF - Journal of Chemical Engineering of Japan
SN - 0021-9592
IS - 13
ER -