A prototype of a compact hydrogen gas gap heat switch (GGHS), built using the difference in
the linear thermal expansion coefficients of copper and stainless steel, was designed to …

A gas-gap heat switch (GGHS) reaches its highest conductance state when the gap between
two exchange surfaces is filled with a conducting gas in a viscous regime. The broader the …

A cryogen-free cold source for temperature below 6K without mechanical, thermal and
electromagnetic perturbations would be welcome in many sensitive applications. This article …

An energy storage unit is a device able to store thermal energy with a limited temperature
drift. After precooling such unit with a cryocooler it can be used as a temporary cold source if …

The cryogenic energy storage unit described in this article is a device that is able to absorb
heat at constant temperature and that provides some significant advantages over the …

In this paper, we describe a thermal energy storage unit able to absorb 400 J between 15 K
and 17 K using hydrogen as the working fluid. This prototype was studied to integrate a 300 …

Abstract A thermal Energy Storage Unit (ESU) could be used to attenuate inherent
temperature fluctuations of a cold finger, either from a cryocooler working or due to suddenly …

Gas Gap Heat Switch for CryoFree Project Page 1 Jorge André Almeida Barreto Licenciado
em Ciências de Engenharia Física Gas Gap Heat Switch for CryoFree Project Dissertação …

Cryocoolers' vibrations prevent them from being used in some sensitive applications.
Stopping the cryocooler even for a short period gives rise to a steep drift of temperature …

Os interruptores térmicos são dispositivos que permitem comutar entre o acoplamento ou
isolamento térmico entre dois dispositivos criogénicos. A sua grande procura para …