Experimental and numerical comparison of multi-layered La(Fe,Si,Mn)13Hy active magnetic regenerators

Kristina Navickaité*, Henrique Neves Bez, Tian Lei, Alexander Barcza, Hugo Vieyra, Christian Bahl, Kurt Engelbrecht

*Corresponding author for this work

Research output: Contribution to journalJournal articleResearchpeer-review

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Abstract

We present an experimental and numerical comparison of epoxy bonded multi-layered La(Fe,Si,Mn)13Hy active magnetic regenerators. First, no-load tests were performed on four regenerators with two layers of material and varying amounts of epoxy (from 1 wt. % to 4 wt. %) in order to find the amount of epoxy necessary to maintain the mechanical integrity of the regenerators. As the second part of the study, experimental results of two regenerators with five and nine layers are compared to predictions from the one-dimensional numerical model. A maximum temperature span, ΔTspan, over 20 K was measured and it is effectively equal for both regenerators. The numerical modelling was generally in good agreement with experimental results.
Original languageEnglish
JournalInternational Journal of Refrigeration
Volume86
Pages (from-to)322-330
ISSN0140-7007
DOIs
Publication statusPublished - 2018

Keywords

  • Magnetic cooling
  • First order materials
  • Magnetocaloric effect
  • Regeneration
  • Modelling

Cite this

Navickaité, Kristina ; Bez, Henrique Neves ; Lei, Tian ; Barcza, Alexander ; Vieyra, Hugo ; Bahl, Christian ; Engelbrecht, Kurt. / Experimental and numerical comparison of multi-layered La(Fe,Si,Mn)13Hy active magnetic regenerators. In: International Journal of Refrigeration. 2018 ; Vol. 86. pp. 322-330.
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title = "Experimental and numerical comparison of multi-layered La(Fe,Si,Mn)13Hy active magnetic regenerators",
abstract = "We present an experimental and numerical comparison of epoxy bonded multi-layered La(Fe,Si,Mn)13Hy active magnetic regenerators. First, no-load tests were performed on four regenerators with two layers of material and varying amounts of epoxy (from 1 wt. {\%} to 4 wt. {\%}) in order to find the amount of epoxy necessary to maintain the mechanical integrity of the regenerators. As the second part of the study, experimental results of two regenerators with five and nine layers are compared to predictions from the one-dimensional numerical model. A maximum temperature span, ΔTspan, over 20 K was measured and it is effectively equal for both regenerators. The numerical modelling was generally in good agreement with experimental results.",
keywords = "Magnetic cooling, First order materials, Magnetocaloric effect, Regeneration, Modelling",
author = "Kristina Navickait{\'e} and Bez, {Henrique Neves} and Tian Lei and Alexander Barcza and Hugo Vieyra and Christian Bahl and Kurt Engelbrecht",
year = "2018",
doi = "10.1016/j.ijrefrig.2017.10.032",
language = "English",
volume = "86",
pages = "322--330",
journal = "International Journal of Refrigeration",
issn = "0140-7007",
publisher = "Elsevier",

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Experimental and numerical comparison of multi-layered La(Fe,Si,Mn)13Hy active magnetic regenerators. / Navickaité, Kristina; Bez, Henrique Neves ; Lei, Tian; Barcza, Alexander; Vieyra, Hugo ; Bahl, Christian; Engelbrecht, Kurt.

In: International Journal of Refrigeration, Vol. 86, 2018, p. 322-330.

Research output: Contribution to journalJournal articleResearchpeer-review

TY - JOUR

T1 - Experimental and numerical comparison of multi-layered La(Fe,Si,Mn)13Hy active magnetic regenerators

AU - Navickaité, Kristina

AU - Bez, Henrique Neves

AU - Lei, Tian

AU - Barcza, Alexander

AU - Vieyra, Hugo

AU - Bahl, Christian

AU - Engelbrecht, Kurt

PY - 2018

Y1 - 2018

N2 - We present an experimental and numerical comparison of epoxy bonded multi-layered La(Fe,Si,Mn)13Hy active magnetic regenerators. First, no-load tests were performed on four regenerators with two layers of material and varying amounts of epoxy (from 1 wt. % to 4 wt. %) in order to find the amount of epoxy necessary to maintain the mechanical integrity of the regenerators. As the second part of the study, experimental results of two regenerators with five and nine layers are compared to predictions from the one-dimensional numerical model. A maximum temperature span, ΔTspan, over 20 K was measured and it is effectively equal for both regenerators. The numerical modelling was generally in good agreement with experimental results.

AB - We present an experimental and numerical comparison of epoxy bonded multi-layered La(Fe,Si,Mn)13Hy active magnetic regenerators. First, no-load tests were performed on four regenerators with two layers of material and varying amounts of epoxy (from 1 wt. % to 4 wt. %) in order to find the amount of epoxy necessary to maintain the mechanical integrity of the regenerators. As the second part of the study, experimental results of two regenerators with five and nine layers are compared to predictions from the one-dimensional numerical model. A maximum temperature span, ΔTspan, over 20 K was measured and it is effectively equal for both regenerators. The numerical modelling was generally in good agreement with experimental results.

KW - Magnetic cooling

KW - First order materials

KW - Magnetocaloric effect

KW - Regeneration

KW - Modelling

U2 - 10.1016/j.ijrefrig.2017.10.032

DO - 10.1016/j.ijrefrig.2017.10.032

M3 - Journal article

VL - 86

SP - 322

EP - 330

JO - International Journal of Refrigeration

JF - International Journal of Refrigeration

SN - 0140-7007

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