Energy label for circulation pumps in heating technology
Energy consumption labels for circulation pumps provide information about the energy efficiency of a circulation pump in a similar way to other energy consumption labels .
Introduction of labeling
In 2005, European heating pump manufacturers, headed by the Europump association, made a voluntary commitment to mark heating pumps with an energy label in the future . In this way, users and end users should be enabled by means of a known classification system to recognize how energy-efficient a product is. The manufacturers who have made the voluntary commitment include WILO SE , Grundfos GmbH , Circulation Pumps and Smedegaard .
Validity of the energy label
In order to enable meaningful comparability within the energy classification, certain boundary conditions must be met.
- Application in heating technology
- The load profile applies to applications in heating technology. (For other applications - for example in refrigeration and air conditioning or drinking water circulation - other load profiles and thus other energy parameters may result.)
- Independent operation of the pumps (stand alone)
- In particular, pumps that are built into wall-mounted units are switched on and off or speed-regulated by the heater control depending on the combustion process. The results achieved cannot be transferred to these manufacturer-specific solutions.
- Centrifugal pumps in wet rotor design
- Pumps of other types are technically not comparable and therefore lead to invalid classification results.
- Electrical input power
- P1 up to 2.5 kW
The classification process
The classification of the energy efficiency of heating pumps is carried out using a measuring technique. The power consumption of the heating pump is measured at four different operating points according to the load profile shown.
Since, as shown above, a Dp variable control characteristic is advantageous for many systems, this control curve serves as a reference. Deviations from the control curve lead to higher energy parameters. The determined power consumption in the four operating points is weighted with the time components from the load profile. The mean power consumption of the pump calculated in this way is then set in relation to a typical power consumption of comparable heating circulation pumps with the same hydraulic power. The result is the so-called reference power consumption, which was determined from measurements of a large number of commercially available pumps. The result of the calculation is the Energy Efficiency Index (EEI). The smaller the EEI, the less electrical energy the pump uses and the better the energy classification.
literature
- Alan Meier: Energy Efficiency Policy: A Global Perspective. EEDAL'03 Conference, September 2003, Turin.
- Nils Bidstrup, et al: Classification of Circulators. EEDAL'03 Conference, September 2003, Turin.
- Rainer Hirschberg: "Determination of the load profiles of heating circulation pumps in building technology". VDMA report, May 2001.
- Rainer Hirschberg: "Determination of the load profiles of heating circulation pumps in building technology - comparative analysis for southern and northern Europe". VDMA report, March 2002.
- Hansjürgen Kech, Franz Meyer: "Energy-saving pumps for heating and solar systems". BINE Information Service, Project Info 13/01.
- BHKS Almanac 2006
Web links
Individual evidence
- ↑ www.baulinks.de: Energy label for heating pumps.Retrieved on June 12, 2012