Giant electrocaloric materials energy efficiency in highly ordered lead scandium tantalate

Autor: Youri Nouchokgwe, Pierre Lheritier, Chang-Hyo Hong, Alvar Torelló, Romain Faye, Wook Jo, Christian R. H. Bahl, Emmanuel Defay

Publikováno v: Nature Communications, Vol 12, Iss 1, Pp 1-7 (2021)

The intrinsic efficiency of electrocaloric materials has been largely overlooked. Here, the authors use the parameter materials efficiency as the figure of merit to rank caloric materials, reporting on the materials efficiency of highly ordered bulk

Externí odkaz: https://doaj.org/article/2650afa9882f4d7e9d5e1c2b3cbd616f

Estimating the demagnetization factors for regular permanent magnet pieces

Autor: C. R. H. Bahl

Publikováno v: AIP Advances, Vol 11, Iss 7, Pp 075028-075028-8 (2021)

In this paper, methods for finding the demagnetization factor, specifically for permanent magnets, are considered and compared. Widely applied and cited literature expressions are compared to high resolution numerical modeling in order to establish t

Externí odkaz: https://doaj.org/article/9c09a03ad0d7451ca3effba59ad6c15e

Performance Assessment of Double Corrugated Tubes in a Tube-In-Shell Heat Exchanger

Autor: Kristina Navickaitė, Michael Penzel, Christian R. H. Bahl, Kurt Engelbrecht

Publikováno v: Energies, Vol 14, Iss 5, p 1343 (2021)

In this article, the performance of double corrugated tubes applied in a tube-in-shell heat exchanger is analysed and compared to the performance of a heat exchanger equipped with straight tubes. The CFD (computational fluid dynamics) analysis was pe

Externí odkaz: https://doaj.org/article/071277dd551b453bb955fdffd588c029

2022 roadmap on 3D printing for energy

Autor: Albert Tarancón, Vincenzo Esposito, Marc Torrell, Marcel Di Vece, Jae Sung Son, Poul Norby, Sourav Bag, Patrick S Grant, A Vogelpoth, S Linnenbrink, M Brucki, T Schopphoven, A Gasser, Elif Persembe, Dionysia Koufou, Simon Kuhn, Rob Ameloot, Xu Hou, Kurt Engelbrecht, Christian R H Bahl, Nini Pryds, Jie Wang, Costas Tsouris, Eduardo Miramontes, Lonnie Love, Canhai Lai, Xin Sun, Martin Ryhl Kærn, Gennaro Criscuolo, David Bue Pedersen

Publikováno v: Tarancón, A, Esposito, V, Faro, M T, Di Vece, M, Son, J S, Norby, P, Bag, S, Grant, P S, Vogelpoth, A, Linnenbrink, S, Brucki, M, Schopphoven, T, Gasser, A, Persembe, E, Koufou, D, Kuhn, S, Ameloot, R, Hou, X, Engelbrecht, K, Bahl, C R H, Pryds, N, Wang, J, Tsouris, C, Miramontes, E, Love, L, Lai, C, Sun, X, Kærn, M R, Criscuolo, G & Pedersen, D B 2022, ' 2022 Roadmap on 3D Printing for Energy ', Journal of Physics: Energy, vol. 4, no. 1, 011501 . https://doi.org/10.1088/2515-7655/ac483d

The energy transition is one of the main challenges of our society and therefore a major driver for the scientific community. To ensure a smart transition to a sustainable future energy scenario different technologies such as energy harvesting using

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ed313fd22f36e734a1a14ee935a2ed69
https://doi.org/10.1088/2515-7655/ac483d

Magneto-elastic coupling in La(Fe, Mn, Si)13Hy within the Bean-Rodbell model

Autor: Henrique N. Bez, Kaspar K. Nielsen, Poul Norby, Anders Smith, Christian R. H. Bahl

Publikováno v: AIP Advances, Vol 6, Iss 5, Pp 056217-056217-7 (2016)

First order magnetic phase transition materials present a large magnetocaloric effect around the transition temperature, where these materials usually undergo a large volume or structural change. This may lead to some challenges for applications, as

Externí odkaz: https://doaj.org/article/fd7ee9ced61448568318987608ab2a54