Abstract
To design a high efficiency magnetocaloric heat pump for the residential
sector, we focused on the improvement of the performance of the
regenerator bed. In particular, placing the regenerators
circumferentially on a plane, we decided to use tapered regenerators
instead of the straight channel ones. Therefore, this paper investigates
the effect of the tapering of the regenerators, which exhibit better
air-gap utilization. Several simulations using a 1D AMR model were run
to study the performance of the tapered regenerator, and the results
were compared to the case of the straight regenerator bed. Moreover, the
temperature span was held fixed at 25 K, and the working temperature of
the regenerator was shifted to study the sensitivity to the variation
of the working conditions. This paper considers a 10-layer regenerator,
with Curie temperature (TC) spacing of 2.5 K.
Original language | English |
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Journal | International Journal of Refrigeration |
Volume | 84 |
Pages (from-to) | 300-308 |
ISSN | 0140-7007 |
DOIs | |
Publication status | Published - 2017 |
Keywords
- Magnetic refrigeration
- Active magnetic regeneration
- Regenerator geometry
- Heat transfer
- Tapering of regenerator