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Germany: Solar + Heat Pump + Ice Storage Achieves Seasonal Performance Factor of 5.6

Submitted by Baerbel Epp on June 22, 2015
Ice storage ConsalarGerman company Consolar offers a heating system called SOLAERA, which combines a heat pump with a specially designed solar collector and a heat storage space using the latent heat released when water freezes to ice (see photo). The solar heat pump system with 18 m² of collector area, a 300 litre ice storage space and a 1,000 litre buffer tank provides enough energy to heat a well-insulated building in Germany. In a field test by a local environment group, Lokale Agenda 21, it achieved a Seasonal Performance Factor (SPF) of 5.6, putting performance even above prior simulations. The SPF describes the ratio of delivered heat to electricity consumed over the entire year. Consolar sold about 160 solar heat pump systems in total, mostly in Germany but also in Denmark, the UK, Switzerland, Belgium, France and Italy. The systems there achieved SPFs between 3.5 and 6, depending on collector field size, maximum flow temperature and heat demand.
Photo: Consolar
 

Switzerland: The Advantages of Solar Thermal and Heat Pump Combinations

Submitted by Baerbel Epp on December 17, 2013

Combining a heat pump and a solar thermal system increases overall system efficiency and substantially reduces the heat pump’s electricity consumption. The various possibilities of using both technologies together were illustrated by Dr Michel Haller’s presentation entitled "Solar and Heat Pump Systems - A Question of Technology?" and held at the SHC conference in Freiburg (see attached document). Haller is project leader at the Swiss Institute for Solar Technology, SPF, in Rapperswil. The ideal combination depends on the type of application, the type of collector and the local climate conditions. The figure above shows a common parallel configuration.
Figure: SPF Rapperswil

Renewable Energy in Industrial Applications. An assessment of the 2050 potential (2010)

Submitted by Raquel Ponte Costa on November 12, 2012

Up to 21% of all final energy use and feedstock in manufacturing industry can be provided by renewable energies by 2050, concludes UNIDO, the United Nations Industrial Development Organisation, on this report published in 2010.

The publication sheds some light on the use of renewable energies (biomass, solar thermal, heat pumps) in industrial applications. Although widely known for its use in residential applications, renewable energies are less common in manufacturing.  

Solar Water Hater and Heat Pump Study (2011)

Submitted by Raquel Ponte Costa on May 23, 2012

This study reviews the current status and future trends of Australia’s Solar Water Heater and Heat Pump Industry. In recent years, solar water heaters in Australia have progressed from a niche market to become a mainstream high volume, low margin product. In 2010, it was estimated that over 10% of Australian households used solar energy for heating water - a 167% rise since 2005.

Multifunctional Solar Thermal Collector for Heat Pump Application (2009)

Submitted by Raquel Ponte Costa on March 21, 2012

This is a paper which was presented at the 3rd WSEAS (World Scientific and Engineering Academy and Society) International Conference on Renewable Energy Sources in 2009.

The paper, written by a group of researchers from the University of Kabangsaan in Malaysia, presents the preliminary results of a study about the solar assisted
heat pump drying system using multifunctional solar collector. The paper includes results of testing made under different conditions

Author: Various

Date: 2009

Pages: 5

Performance Analysis of a Solar Heating System Coupled to a Heat Pump for Building Renovation Purposes (2009)

Submitted by Raquel Ponte Costa on January 31, 2012

The paper was presented by Mr. Jacques Bony and Mr. Stéphane Citherlet from the Laboratory of Solar Energetics and Buildings Physics (Switzerland) in the framework of Task 44 of the IEA Solar Heating and Cooling Programme. It presents the energy and economic performances of facilities coupling heat pumps with air heater equipped with solar thermal collectors. The study was done employing a TRNSYS-type dynamic simulation.

Overview on Solar Thermal Plus Heat Pumps Systems and Review of Monitoring Results (2011)

Submitted by Raquel Ponte Costa on January 16, 2012

The target of the present paper is to give an overview on commercially available Solar Thermal and Heat Pump Systems (SAHPS) and a review on available monitoring results of these integrated systems. It is the fruit of the research of German, Italian and Austrian specialists in the framework of IEA’s Solar Heating and Cooling Programme.

Integrated Unglazed Solar Panel Development (2010)

Submitted by Raquel Ponte Costa on November 24, 2011

This is a presentation of the research done by the Environmental Energy Solutions Ltd. for the development and testing of their prototype solar heat system. The particularities consisted in the large, low cost solar collector integrated into the roof or wall cladding system and its integrated water sourced heat pump and thermal storage system. A prototype was installed on a house in Wellington, providing year-round performance data. This report was done with the support of the New Zealand Energy Efficiency and Conservation Authority.

Experimental and Simulated Performance of Commercially Available Solar and Heat-pump Water Heaters in New Zealand (2005)

Submitted by Raquel Ponte Costa on September 29, 2011

The article was written by the researchers S.E. Thomas and C.R. Lloyd from the University of Otago, New Zealand, and published by the New Zealand Solar Industries Association.

Their research comes in the context of governmental efforts to increase the penetration of solar hot water heaters in domestic applications in order to enhance energy efficiency of domestic housing.

Switch to a Better Future. Accredited Dimplex Renewables Installer and Training Scheme (2009)

Submitted by Raquel Ponte Costa on July 4, 2011

This is an example of a brochure about the Accredited Dimplex Renewables Installer and Training Scheme.

This programme offers specialised domestic heat pump installer training courses. The course receives accreditation from the Logic Certification and it is addressed to plumbing, heating, HVAC and M&E engineers wishing to expand into the air/ground source heat pump sector.

The brochure also includes an explanation about heat pumps and solar water heating and the benefits of using renewables.

Author: Dimplex

Pages

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