Messer Se &Co. Kgaa

Messer Griesheim Gmbh

Messer Industriegase Gmbh

Messer Group Gmbh

Vision Electric Super Conductors Gmbh

Air Liquide Deutschland Gmbh

Friedhelm Herzog

Thomas Kutz

Franz Lurken

Joachim Barbe

Joachim Hertrampf

Hermann Grabhorn

Martin Schulte-Rewinkel

Wolfgang Reiser

Stefan Huwer

Oliver Dietrich

Heinz J Schmidt

Franz R Schlomer

Silke Bergheim

Herrmann Grabhorn

James Hennequin

Alexander Schlotmann

Thomas BÖCKLER

Stefan Terkatz

Joachim Rohovec

Apparatus for transmitting electrical energy with a superconducting current carrier, in which the superconducting current carrier to be cooled is accommodated in a first cooling channel, which first cooling channel is connected by way of a coolant feed line to a supply device for a first cooling medium and is surrounded by at least one second cooling channel, for conducting through a second cooling medium, which is flow-connected to a coolant-discharge line for heated second cooling medium, wherein a supercooled, liquefied gas is used as the first cooling medium, is characterized according to the invention in that a liquefied gas is used as the second cooling medium and the second cooling channel is equipped with means for removing a gas phase occurring due to evaporation of the second cooling medium.

Apparatus for transmitting electrical energy with a superconducting current carrier

In order to separate diborane from a gas mixture containing diborane and hydrogen, the gas mixture is normally cooled in a storage tank using liquid nitrogen, wherein the diborane freezes out. In order to enable an extensively continuous separation of the diborane from the gas mixture, according to the invention, the gas mixture is brought into thermal contact with a liquefied gas in a heat exchanger, which liquefied gas is held at a pressure such that the diborane is liquefied by the thermal contact with the coolant, and the liquefied diborane is then discharged from the first heat exchanger and supplied to a storage tank. In a downstream, second heat exchanger, the diborane remaining in the gas mixture can then be caused to freeze out.

Method and device for separating a gas mixture containing diborane and hydrogen

For the transmission of electrical current, determined superconducting current carriers are accommodated in a cryostat, in which they are cooled with an undercooled cryogenic cooling medium, e.g. liquid nitrogen. The current carrier is electrically connected at the ends thereof to two normally conducting current supply means. The cooling medium is undercooled from a storage container to a temperature below its boiling temperature and supplied to the cryostat via a cooling medium inlet, brought into thermal contact with the superconducting current carrier, and subsequently discharged via a cooling medium outlet of the cryostat. According to the invention, the cooling medium from the cryostat is to be used for cooling at least one of the normally conducting current supply means.

Method and device for cooling a superconducting current carrier

The disclosure relates to a device for improving a vacuum in the housing of a machine, in particular a centrifugal-mass energy store, comprising a rotor, for example a shaft having a centrifugal mass arranged thereon, which rotor is supported on at least one superconducting bearing in a contactless manner and is arranged in a vacuum container. In order to maintain the operating state of the superconducting bearing, the superconducting bearing is thermally connected to a cold source cooled by a cryogenic medium. According to the invention, the vacuum in the vacuum container is improved by means of an adsorber thermally connected to a cooling apparatus. The cooling of the adsorber occurs preferably by means of evaporated cooling medium from the superconducting bearing.

Device for improving the vacuum in the housing of a machine

A super-cooled liquid medium, preferably super-cooled liquid nitrogen, is pumped through a sub-cooler and cooled by the same medium that evaporates in the vacuum. This super-cooled nitrogen is used as coolant for a consumer. If a small amount of heat is emitted by the consumer to the nitrogen, the liquid medium can be guided in the circuit wherein the sub-cooler is arranged. For compensating volume fluctuations, such a circuit requires a compensation vessel, which is very expensive and can only be operated in the presence of a super-cooled medium when either a part of the medium is heated using external energy, or an inert gas which boils at very low temperatures is used as a pressure compensation medium. According to the disclosure, when a supply container for the liquid medium is integrated into the cooling circuit and used as a compensation vessel, a separate compensation vessel is not required.

Device for cooling a consumer with a super-cooled liquid in a cooling circuit

The process and device according to the invention make it possible to reduce the pressure build-up in the head space as a function of the quantity of inflow medium. It also makes it possible to maintain or create defined flow conditions in the head space gas. This is accomplished by measuring the quantity of gaseous and/or liquid inflow medium and then venting the head space gas as a function of the quantity of inflow medium.

Process and device to regulate the inner pressure of a tank and/or to

The recovery of solvents from waste gases takes place according to the state of the art by condensation, freezing out or desublimation of the solvent in recuperative cold reservoirs which can be switched over. In order to reduce the amount of equipment and the cold losses, the condensation and freezing-out operations are run continuously in a shaped-object reservoir through which cooled shaped objects move in a countercurrent to the waste gas.

Process to recover solvents from waste gases

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Krefeld, Germany

Friedhelm Herzog