Siemens Aktiengesellschaft

Siemens Schweiz Ag

Markus Gwerder

Thomas Baumgärtner

Jürg Tödtli

Marcel Walti

Tianyun Gao

Benedikt Schumacher

Jürg Toedli

Stefan Langemeyer

Thomas Schütz

An appropriately treated flow of air is supplied to a room in an automatically executed pulsed operation, in which the air flow is alternately switched on and switched off. The air flow is switched off independently of the room usage state if the regulated room comfort variables lie within a respectively assigned comfort band. If at least one of the regulated room comfort variables lies outside the comfort band assigned to it, the flow of air minimized in respect of its volume is supplied to the room. This means that ventilators used for the exchange of air will be operated at the lowest possible speed, optimized in respect of time and thereby with high energy efficiency.

Method for regulating room comfort variables

In a building which has at least two floors, an apparatus for controlling and regulating room temperature having a hierarchical structure includes a predictive device on the top level, that provides optimal control of the use of at least one free energy source, and at least one device on a lower level which is used for feedback regulation of at least one additional energy source. The predictive device uses a building model and repeatedly optimizes the energy requirement or the energy costs. The regulation strategy of the predictive device uses characteristics of a passive heat accumulator of the building.

System for controlling room temperature in a building using a free energy source, an additional energy source, and predictive control

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Steinhausen, Switzerland

Markus Gwerder