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Setback Efficiency of Limited-Power Heating Systems in Cold Climate

  • Tuule Mall Kull
  • Raimo Simson
  • Jarek Kurnitski
Conference paper
Part of the Springer Proceedings in Energy book series (SPE)

Abstract

The main aim of this work is to analyse the energy saving potential and peak power impact resulting from the temperature setback approach. This paper analyses low energy buildings incorporating high-efficiency heating systems with limited power, as additional power for district heating and heat pump systems will need costly investments. The setback efficiency is estimated for different types of heating systems. Underfloor heating is compared to radiators both for limited and excess power. Based on estimated time constants, suitable heat-up time is calculated to minimise the time when temperatures stay below setpoint during occupancy. The energy saving potential of night-time and weekend setback periods in an office are analysed. It is found that the energy saving potential of setback is low under given constraints. Therefore, for modern buildings the cost-optimality has to be assessed separately for specific cases.

Keywords

Temperature setback efficiency Low-energy buildings Limited power Cold climate 

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Copyright information

© Springer Nature Switzerland AG 2019

Authors and Affiliations

  • Tuule Mall Kull
    • 1
  • Raimo Simson
    • 1
  • Jarek Kurnitski
    • 1
    • 2
  1. 1.Tallinn University of TechnologyTallinnEstonia
  2. 2.School of EngineeringAalto UniversityEspooFinland

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