<abstract xmlns="http://www.w3.org/1999/xhtml"><p>Improving the efficiency of heating systems can give a tremendous contribution towards the EU energy efficiency target for 2030. Significant heat losses are one of the main disadvantages of the dominating high temperature district heating (DH). Even in summer, the high retention time of water in the network leads to thermal losses from domestic hot water reaching up to about 30 %. An empirical model based on experimental data of heat energy consumption in multi-apartment buildings is created for economical optimization of the operation of DH systems. A methodology has been developed that allows estimating the total energy cost savings (including losses) of buildings associated with the reduction of heat loss in the system, by reducing the supply flow temperature, and increasing electricity consumption by increasing the mass flow rate of water in the network.</p></abstract>

Improving the efficiency of heating systems can give a tremendous contribution towards the EU energy efficiency target for 2030. Significant heat losses are one of the main disadvantages of the dominating high temperature district heating (DH). Even in summer, the high retention time of water in the network leads to thermal losses from domestic hot water reaching up to about 30 %. An empirical model based on experimental data of heat energy consumption in multi-apartment buildings is created for economical optimization of the operation of DH systems. A methodology has been developed that allows estimating the total energy cost savings (including losses) of buildings associated with the reduction of heat loss in the system, by reducing the supply flow temperature, and increasing electricity consumption by increasing the mass flow rate of water in the network.

Empirical Model of Cost Reduction in Local DH Systems. Low Temperature Approach

Institute of Energy Systems and Environment

Environmental and Climate Technologies

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

{"article-title":"Empirical Model of Cost Reduction in Local DH Systems. Low Temperature Approach"}

Improving the efficiency of heating systems can give a tremendous contribution towards the EU energy efficiency target for 2030. Significant heat losses are...

Empirical Model of Cost Reduction in Local DH Systems. Low Temperature Approach

Published Online: Dec 13, 2019

Page range: 190 - 201

DOI: https://doi.org/10.2478/rtuect-2019-0089

Keywords
Cost reduction, district heating (DH) systems, economical optimization, energy savings, low supply temperature, water capacity in DH systems

© 2019 Dagnija Blumberga et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

Empirical Model of Cost Reduction in Local DH Systems. Low Temperature Approach

Published Online: Dec 13, 2019

Page range: 190 - 201

DOI: https://doi.org/10.2478/rtuect-2019-0089

KeywordsCost reduction, district heating (DH) systems, economical optimization, energy savings, low supply temperature, water capacity in DH systems

© 2019 Dagnija Blumberga et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

Keywords
Cost reduction, district heating (DH) systems, economical optimization, energy savings, low supply temperature, water capacity in DH systems