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Energy savings for solar heating systems; Solvarmeanlaegs energibesparelser

Abstract

Energy savings for a number of new solar heating systems in one family houses have been determined by means of information on the energy consumption of the houses before and after installation of the solar heating systems. The investigated solar heating systems are marketed by Velux Danmark A/S, Sonnnenkraft Scandinavia A/S and Batec Solvarme A/S. Solar domestic hot water systems as well as solar combi systems are included in the investigations The houses have different auxiliary energy supply systems: Natural gas boilers, oil fired burners, electrical heating and district heating. Some of the houses have a second auxiliary energy supply system. The collector areas vary from 1.83 m{sup 2} to 9.28 m{sup 2}. Some of the solar heating systems are based on energy units with a new integrated natural gas boiler and a heat storage for the solar heating system. The existing energy systems in the houses are for most of the houses used as the auxiliary energy systems for the solar heating systems. The yearly energy savings for the houses where the only change is the installation of the solar heating system vary from 300 kWh per m{sup 2} solar collector to 1300 kWh per m{sup 2} solar collector.  More>>
Authors:
Publication Date:
Jan 15, 2011
Product Type:
Technical Report
Report Number:
DTU-BYG-R-238
Resource Relation:
Other Information: EFP-2007-2; 3 tabs., 1 fig.
Subject:
14 SOLAR ENERGY; 32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION; SOLAR HEATING SYSTEMS; ENERGY CONSERVATION; RESIDENTIAL BUILDINGS; HOUSES; SOLAR SPACE HEATING; SOLAR WATER HEATING; SOLAR COLLECTORS
OSTI ID:
1008031
Research Organizations:
Danmarks Tekniske Univ., DTU Byg. Institut for Byggeri og Anlaeg, Kgs. Lyngby (Denmark)
Country of Origin:
Denmark
Language:
Danish
Other Identifying Numbers:
Other: Contract ENS-33033-0216; ISBN 978-87-7877-318-0; ISBN 978-87-7877-318-0; TRN: DK1101029
Availability:
Also available at http://www.risoe.dtu.dk/rispubl/NEI/DTU-BYG-R-238.pdf; OSTI as DE01008031
Submitting Site:
DK
Size:
22 p. pages
Announcement Date:
Mar 14, 2011

Citation Formats

Furbo, S, and Fan, J. Energy savings for solar heating systems; Solvarmeanlaegs energibesparelser. Denmark: N. p., 2011. Web.
Furbo, S, & Fan, J. Energy savings for solar heating systems; Solvarmeanlaegs energibesparelser. Denmark.
Furbo, S, and Fan, J. 2011. "Energy savings for solar heating systems; Solvarmeanlaegs energibesparelser." Denmark.
@misc{etde_1008031,
title = {Energy savings for solar heating systems; Solvarmeanlaegs energibesparelser}
author = {Furbo, S, and Fan, J}
abstractNote = {Energy savings for a number of new solar heating systems in one family houses have been determined by means of information on the energy consumption of the houses before and after installation of the solar heating systems. The investigated solar heating systems are marketed by Velux Danmark A/S, Sonnnenkraft Scandinavia A/S and Batec Solvarme A/S. Solar domestic hot water systems as well as solar combi systems are included in the investigations The houses have different auxiliary energy supply systems: Natural gas boilers, oil fired burners, electrical heating and district heating. Some of the houses have a second auxiliary energy supply system. The collector areas vary from 1.83 m{sup 2} to 9.28 m{sup 2}. Some of the solar heating systems are based on energy units with a new integrated natural gas boiler and a heat storage for the solar heating system. The existing energy systems in the houses are for most of the houses used as the auxiliary energy systems for the solar heating systems. The yearly energy savings for the houses where the only change is the installation of the solar heating system vary from 300 kWh per m{sup 2} solar collector to 1300 kWh per m{sup 2} solar collector. The average yearly energy savings is about 670 kWh per m{sup 2} solar collector for these solar heating systems. The energy savings per m{sup 2} solar collector are not influenced by the solar heating system type, the company marketing the system, the auxiliary energy supply system, the collector area, the collector tilt, the collector azimuth, the energy consumption of the house or the location of the house. The yearly energy savings for the houses with solar heating systems based on energy units including a new natural gas boiler vary from 790 kWh per m{sup 2} solar collector to 2090 kWh per m{sup 2} solar collector. The average yearly energy savings is about 1520 kWh per m{sup 2} solar collector for these solar heating systems. The energy savings per m{sup 2} solar collector for these systems are also not influenced by the solar heating system type, the company marketing the system, the auxiliary energy supply system, the collector area, the collector tilt, the collector azimuth, the energy consumption of the house or the location of the house. That is, yearly energy savings for new solar heating systems in one family houses are high, ranging from 300 kWh per m{sup 2} solar collector to 2090 kWh per m{sup 2} solar collector. If the existing energy system is used as the back up energy system for the solar heating system typical yearly energy savings vary from 500 kWh per m{sup 2} solar collector to 800 kWh per m{sup 2} solar collector. For solar heating systems with a new energy unit including a new natural gas boiler typical yearly energy savings vary from 1000 kWh per m{sup 2} solar collector to 2000 kWh per m{sup 2} solar collector. (Author)}
place = {Denmark}
year = {2011}
month = {Jan}
}