publication . Conference object . 2014

The impact of air-tightness in the retrofitting practice of low temperature heating

Wang, Qian; Holmberg, Sture;
Open Access English
  • Published: 01 Jan 2014
  • Publisher: KTH, Strömnings- och klimatteknik
  • Country: Sweden
Abstract
In Sweden, the energy usage in existing residential buildings amounted to 147 TWh in 2012, equivalent to almost 40 % of the final overall national energy usage. Among all the end users in building service sectors, 60 % of the final energy in Sweden is used for space heating and domestic hot water (DHW) production in 2013. In order to reduce the supply temperature for space heating in existing buildings, combined approaches are favorably adopted: to reduce the net energy demand by air-tightness and insulation retrofits; and renovate the conventional high temperature heating to low temperature heating (LTH) systems. As an energy-efficiency alternative, LTH technol...
Subjects
free text keywords: Air-tightness, retrofitting, energy savings, low temperature heating, Swedish residential buildings
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