Zobrazeno 1 - 10
of 17
pro vyhledávání: '"Kilian Bartholome"'
Autor:
Stefan Moench, Richard Reiner, Patrick Waltereit, Christian Molin, Sylvia Gebhardt, David Bach, Roland Binninger, Kilian Bartholome
Publikováno v:
IEEE Access, Vol 10, Pp 46571-46588 (2022)
This work analyzes how an over 99% efficient charging circuit and electrical offset fields enhance the coefficient of performance (COP) of electrocaloric heat pumps, an emerging technology with zero global warming potential. The COP is studied for Ca
Externí odkaz:
https://doaj.org/article/d5d9cb01503948028210f10a0ae92590
Autor:
Stefan Moench, Richard Reiner, Kareem Mansour, Michael Basler, Patrick Waltereit, Rudiger Quay, Kilian Bartholome
Publikováno v:
2022 IEEE 9th Workshop on Wide Bandgap Power Devices & Applications (WiPDA).
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::68d9a771178906ee2bbb90daa11546dc
https://doi.org/10.1109/wipda56483.2022.9955287
https://doi.org/10.1109/wipda56483.2022.9955287
Autor:
Julius Metzdorf, Patrick Corhan, David Bach, Sakyo Hirose, Dirk Lellinger, Stefan Mönch, Frank Kühnemann, Olaf Schäfer-Welsen, Kilian Bartholomé
Publikováno v:
Communications Engineering, Vol 3, Iss 1, Pp 1-6 (2024)
Abstract Electrocalorics (EC) is potentially more efficient than refrigeration and heat pumps based on compressors and does not need detrimental fluids. Current EC-prototypes use solid-state contact or forced convection with liquids to transfer the h
Externí odkaz:
https://doaj.org/article/8a74283ccca74417a68ac97ad54650ab
Autor:
Christian Teicht, Markus Winkler, Simon Boda, Daniel Schwarz, Jan Schipper, Angelos Polyzoidis, Sandra Pappert, Kilian Bartholomé
Publikováno v:
Energies, Vol 17, Iss 17, p 4314 (2024)
Recently, thermal regulators based on adsorption in a heat pipe have been proposed. The advantage of these so-called “switchpipes” over similar approaches is their low on state thermal resistance. In this paper, we propose a methodology to calcul
Externí odkaz:
https://doaj.org/article/dc319bceac0f403eb8716a697b493f6b
Autor:
Simon Boda, Markus Winkler, Robert Schießl, Christian Teicht, Daniel Schwarz, Jan Schipper, Kilian Bartholomé, Olaf Schäfer-Welsen, Sandra Pappert
Publikováno v:
Energies, Vol 17, Iss 9, p 2088 (2024)
Controlling heat transfer through components with adjustable thermal resistance can be of great benefit in a wide range of applications such as the thermal management of spacecraft or electric vehicles. A novel concept for both thermal switching and
Externí odkaz:
https://doaj.org/article/44bd048382a04ddeaeaba94a3846ab2c
Autor:
Jan Schipper, Stefan Melchin, Julius Metzdorf, David Bach, Miriam Fehrenbach, Konrad Löwe, Hugo Vieyra, Frank Kühnemann, Jürgen Wöllenstein, Kilian Bartholomé
Publikováno v:
JPhys Energy, Vol 6, Iss 3, p 035006 (2024)
Hysteresis and the associated production of dissipative heat during first order phase transitions are often major contributors to thermodynamic losses in caloric heat pumps. The figure of merit (FOM), defined as the ratio of adiabatic temperature cha
Externí odkaz:
https://doaj.org/article/7fc8bce1a0b642c9a263ce59fdf09bcd
Autor:
Markus Winkler, Marc Vergez, Andreas Mahlke, Mathias Gebauer, Phillip Müller, Christoph Reising, Kilian Bartholomé, Olaf Schäfer-Welsen
Publikováno v:
Energies, Vol 16, Iss 22, p 7463 (2023)
In many energy-related applications, components with high heat loads, such as power electronics, play an important role. Pulsating heat pipes (PHPs) are an effective solution to deal with the increasing heat load of these components. In many real-lif
Externí odkaz:
https://doaj.org/article/b3781316bb9d4c0e99112a895c440a73
Publikováno v:
Energies, Vol 16, Iss 15, p 5837 (2023)
Caloric cooling systems are potentially more efficient than systems based on vapour compression. Electrocaloric cooling systems use a phase transformation from the paraelectric to the ferroelectric state by applying or removing an electric field to p
Externí odkaz:
https://doaj.org/article/90f6426f4d6246ecb1cc55093f2e6b73
Autor:
Nora Bachmann, Andreas Fitger, Lena Maria Maier, Andreas Mahlke, Olaf Schäfer-Welsen, Thomas Koch, Kilian Bartholomé
Publikováno v:
Communications Physics, Vol 4, Iss 1, Pp 1-6 (2021)
Elastocaloric materials exhibit temperature changes under applied stress and could be the basis for an environmentally friendly cooling system if issues with their long term stability can be addressed. Here, the authors design and build an elastocalo
Externí odkaz:
https://doaj.org/article/436e8551dd9846d0994b0cfedad6624f
Autor:
Stefan Mönch, Kilian Bartholomé
Publikováno v:
JPhys Energy, Vol 5, Iss 4, p 045001 (2023)
In an all-solid-state electrocaloric arrangement, an absolute temperature change which exceeds twice the electrocaloric adiabatic temperature change is locally realized, using just the distributed thermal capacitances and resistances and spatio-tempo
Externí odkaz:
https://doaj.org/article/a76345496b354db59d12ac779ca82d22