Zobrazeno 1 - 10
of 57
pro vyhledávání: '"Kilian Bartholomé"'
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:
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
Autor:
Jan Schipper, David Bach, Stefan Mönch, Christian Molin, Sylvia Gebhardt, Jürgen Wöllenstein, Olaf Schäfer-Welsen, Christian Vogel, Robin Langebach, Kilian Bartholomé
Publikováno v:
JPhys Energy, Vol 5, Iss 4, p 045002 (2023)
Efficiency improvements in heat pump can drastically reduce global energy demand. Caloric heat pumps are currently being investigated as a potentially more efficient alternative to vapor compression systems. Caloric heat pumps are driven by solid-sta
Externí odkaz:
https://doaj.org/article/2f7e2d7d6de44bd68bf7543925cb7fba
Autor:
Nora Bachmann, Daniel Schwarz, David Bach, Olaf Schäfer-Welsen, Thomas Koch, Kilian Bartholomé
Publikováno v:
Energies, Vol 15, Iss 14, p 5089 (2022)
When it comes to covering the growing demand for cooling power worldwide, elastocalorics offer an environmentally friendly alternative to compressor-based cooling technology. The absence of harmful and flammable coolants makes elastocalorics suitable
Externí odkaz:
https://doaj.org/article/c3bcd518034542e3a445d8ed400b626b
Autor:
Markus Winkler, Jan Schipper, Christian Teicht, Patrick Corhan, Angelos Polyzoidis, Kilian Bartholomé, Olaf Schäfer-Welsen, Sandra Pappert
Publikováno v:
Energies, Vol 15, Iss 9, p 3271 (2022)
For many applications, the possibility of controlling heat flow by “thermal switching” can be very beneficial. In previous work, we presented a novel approach for thermal switching using a water-loaded adsorbent as part of the evaporator of a hea
Externí odkaz:
https://doaj.org/article/8bd4366be67a48d2afe5857009deb4e4