Belimo Holding Ag

Burckhardt Compression Ag

Ksb Se & Co. Kgaa

Straub Werke Ag

Markus Friedl

Marc Thuillard

Alexandre Voser

Andreas Schlegel

Markus Lehmann

Urs Weilenmann

Philipp Hauri

Dirk Ingmar Uhlenhaut

Philip Hauri

Beat Keller

A method for operating a heat exchanger, through which a heat transfer medium flows on a primary side, entering the heat exchanger with a first temperature and exiting the heat exchanger with a second temperature. The heat transfer medium emits on a secondary side a heat flow to a secondary medium flowing through the heat exchanger in the case of heating or, in the case of cooling, absorbs a heat flow from the secondary medium which enters the heat exchanger with a third temperature and exits the heat exchanger again with a fourth temperature. The heat exchanger is capable of transferring a maximum heat flow. At least three of the four temperatures are measured and the respective saturation level of the heat exchanger is determined from these measured temperatures and is used for controlling the operation of the heat exchanger.

Method for operating a heat exchanger using temperature measurements to determine saturation level

The invention relates to an actively controlled valve () having a housing () and comprising a displaceably supported valve plate () having aperture openings () and a counter plate () disposed in a fixed manner relative to the housing () and having aperture openings (), wherein the valve plate () is slidably supported relative to the counter plate (), such that the penetration openings () form an open or closed aperture (), and comprising a drive device () driving the valve plate (), wherein the valve plate () is connected to the drive device () by means of a drive spring (), and an actuatable clamping device () is provided for fixing the location of the valve plate ().

Actively controlled valve and method for operating an actively controlled valve

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Zurich, Switzerland

Markus Friedl