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  1. Lucerne University of Applied Sciences and Arts Lucerne University of Applied Sciences and Arts
  2. Research Research
  3. Brine-to-Water Heat Pumps with Continuous Capacity Control Brine-to-Water Heat Pumps with Continuous Capacity Control

Brine-to-Water Heat Pumps with Continuous Capacity Control

The aim of this project is the development of an optimized brine-to-water heat pump with continuous capacity control.

Brief information

School:

Engineering and Architecture

Status:

Completed

Period:

01.10.2012 - 31.12.2014

Overview

In the SFOE project "Efficient Air-to-Water Heat Pumps through Continuous Capacity Control"

(2008-2011), valuable knowledge regarding the improved efficiency of air-to-water heat pumps through continuous capacity control was gained. These findings shall be used now for brine-to-water and water-to-water heat pumps. Various studies show that the implementation of continuous capacity control could increase the efficiency of brine-to-water heat pumps as well. The aim of the project is the development of an optimized control system for capacity controlled brine-to-water heat pumps. The control system will regulate the rotational speed of the brine circulating pump and the compressor, dependent on the state of the heat source and the heat sink, in such a way that the efficiency of the heat pump is always at a maximum.

In order to verify the potential and quantify the increased efficiency, a prototype with a capacity controlled brine-to-water heat pump will be realized and tested. Different control strategies will be investigated regarding the efficiency (e.g. control of just the compressor and simultaneous control of the compressor and brine circulation pump). The results will be compared with the efficiency of an on-off-controlled brine-to-water heat pump. 

All obtained knowledge and relationships regarding the development and control system of the capacity controlled brine-to-water and water-to-water heat pumps will be described, according to the individual needs of the target groups, in the design priciples.

Grossaufnahme der Prototypen-Wärmepumpe, © CC TEVT, eigenes Werk
Wärmeübertrager der Prototypen-Wärmepumpe, © CC TEVT, eigenes Werk
Versuchsstand für die Prototypen-Wärmepumpe, © CC TEVT, eigenes Werk
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Facts

Type of project

Forschung

Internal organisations involved
  • CC Thermal Energy Systems and Process Engineering
External project partner
  • Emerson Climate Technologies GmbH
  • SWEP International AB
Funding
  • BFE
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Persons involved: internal

Project manager
  • Lukas Gasser
Project Co-Head
  • Beat Wellig
Member of project team
  • Werner Birrer
  • André Brun
  • Stefan Flück
  • Mirko Kleingries
  • Peter Schärli

Brief information

School:

Engineering and Architecture

Status:

Completed

Period:

10/01/2012 - 12/31/2014

Project Co-Head

Prof. Dr. Beat Wellig

Lecturer

+41 41 349 32 57

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Lucerne University of Applied Sciences and Arts


Werftestrasse 4
CH- 6002 Luzern

+41 41 228 42 42

info@hslu.ch

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