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Low energy houses heated by biomass boilers: optimization of the heating system control strategy by means of dynamic simulation.

Number: pap. 3303

Author(s) : CARLON E., SCHWARZ M., SCHMIDL C., et al.

Summary

The aim of this work is to analyze the energetic performance of a low energy house, situated in the region of Lower Austria, by means of on-site monitoring and dynamic building simulation. The building under study is a prefabricated single family house, whose envelope has highly insulated lightweight walls and triple glazed windows. The living space is heated by a 6 kW pellet boiler supplying hot water to a floor heating system. The house is currently monitored in the frame of a European Project (BioMaxEff), aiming at the demonstration of biomass boilers in real life conditions. Parameters describing the boiler operation as well as outdoor and indoor temperatures are registered continuously during the whole year. Monitoring data reveal that the settings imposed in the control unit of the heating system are not ideal to maintain a comfortable indoor temperature during the whole day. Two possible improvements of the control strategy have been investigated in a dynamic simulation environment, with a coupled simulation of the building envelope and the heating system. Results showed that, by eliminating the night setback temperature, the indoor environment can be maintained at comfortable temperature during the whole heating season, with only a 4% increase of the pellet consumption in comparison to the present control strategy.

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Pages: 8 p.

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Details

  • Original title: Low energy houses heated by biomass boilers: optimization of the heating system control strategy by means of dynamic simulation.
  • Record ID : 30013588
  • Languages: English
  • Subject: Environment
  • Source: 2014 Purdue Conferences. 3rd International High Performance Buildings Conference at Purdue.
  • Publication date: 2014/07/14

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