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  2. Turbo Heat Pump for Low-Lift Applications Turbo Heat Pump for Low-Lift Applications

Turbo Heat Pump for Low-Lift Applications

Nowadays, heat pumps and air conditioning systems are widespread and sophisticated technologies for the heating and cooling of buildings.

Brief information

School:

Engineering and Architecture

Status:

Completed

Period:

01.12.2012 - 30.06.2014

Overview

The efficiency of such a system is strongly dependent on the temperature lift. Systems in applications with a low external temperature lift have an as-of-yet unexhausted potential for saving the primary energy use of buildings as well as reducing their CO2 emissions. However, the potential of high efficient heating and cooling systems with low temperature lifts cannot be utilized sufficiently, as at the moment standard plants are typically designed for relatively large temperature lifts. In the present CTI project, the Lucerne University of Applied Sciences and Arts, Horw and BS2 AG, Schlieren will develop a heat pump or air conditioning system. It will have a turbo compressor with a thermal power range of 4kW to 20kW and be optimized for low-lift applications. That means, the system will achieve an unprecedented high and relatively constant quality grade in the relevant temperature lift range of 10K to 30 K. The first experimental studies showed clearly that with this system, the potential of a low temperature lift can be optimally exploited and therefore, significant efficiency improvements can be achieved.

Turbokompressor für Niederhub-Wärmepumpen und -Klimakälteanlagen, © Hochschule Luzern - Technik & Architektur
Prototyp der Niederhub-Wärmepumpe mit Turbokompressor, © Hochschule Luzern - Technik & Architektur
Kompakter Prototyp der Niederhub-Wärmepumpe mit Turbokompressor, © BS2 AG
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Facts

Type of project

Forschung

Internal organisations involved
  • CC Thermal Energy Systems and Process Engineering
External project partner
  • BS2 AG
External project funder
  • Kommission für Technologie und Innovation (KTI)
Funding
  • KTI-HSLU als Hauptgesuchsteller/in
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Persons involved: internal

Project manager
  • Lukas Gasser
Project Co-Head
  • Beat Wellig
Member of project team
  • Werner Birrer
  • Stefan Flück
  • Tobias Käch
  • Veronika Perl
  • Lorenz Rast
  • Jan Stampfli
  • Mario von Deschwanden

Brief information

School:

Engineering and Architecture

Status:

Completed

Period:

12/01/2012 - 06/30/2014

Project Co-Head

Prof. Dr. Beat Wellig

Lecturer

+41 41 349 32 57

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