Network simulation of low heat demand residential area

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review

Abstract

Energy consumption and heat demand in district heating systems will decrease in the future as low energy houses become more common and energy efficiency measures are implemented. The solutions for district heating to meet the challenges due to this trend are being studied. Simulation of three variations of a residential area with realistic load profiles for both heating and domestic hot water consumption was carried out. A low connection rate system and a low supply temperature variant were compared to a traditional design. Dedicated models were used in both building and network simulation. Results showed relative heat losses of 19.1 % for the low connection rate case. Low supply temperature variant resulted in 10 % lower heat losses than the reference case having relative heat losses of 10.6 %. All studied cases required a by-pass arrangement to maintain adequate temperature level for domestic hot water service outside heating season. This resulted in increased heat losses and in peaks in pressure drop. As in the future the operational environment is becoming more challenging for district heating, a need for comprehensive planning of whole systems taking into account all production, distribution and consumers will be more important than ever.
Original languageEnglish
Title of host publicationProceedings of the International Symposium on District Heating and Cooling
Pages539 - 542
Publication statusPublished - 2014
MoE publication typeA4 Article in a conference publication
Event14th International Symposium on District Heating and Cooling - Stockholm, Sweden
Duration: 7 Sep 20149 Sep 2014

Conference

Conference14th International Symposium on District Heating and Cooling
CountrySweden
CityStockholm
Period7/09/149/09/14

Fingerprint

Heat losses
District heating
Heating
Temperature
Pressure drop
Energy efficiency
Water
Energy utilization
Planning
Hot Temperature

Keywords

  • district heating
  • low heat demand
  • energy efficiency
  • buildings

Cite this

Rämä, M., Heikkinen, J., Klobut, K., & Laitinen, A. (2014). Network simulation of low heat demand residential area. In Proceedings of the International Symposium on District Heating and Cooling (pp. 539 - 542)
Rämä, Miika ; Heikkinen, Jorma ; Klobut, Krzysztof ; Laitinen, Ari. / Network simulation of low heat demand residential area. Proceedings of the International Symposium on District Heating and Cooling. 2014. pp. 539 - 542
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title = "Network simulation of low heat demand residential area",
abstract = "Energy consumption and heat demand in district heating systems will decrease in the future as low energy houses become more common and energy efficiency measures are implemented. The solutions for district heating to meet the challenges due to this trend are being studied. Simulation of three variations of a residential area with realistic load profiles for both heating and domestic hot water consumption was carried out. A low connection rate system and a low supply temperature variant were compared to a traditional design. Dedicated models were used in both building and network simulation. Results showed relative heat losses of 19.1 {\%} for the low connection rate case. Low supply temperature variant resulted in 10 {\%} lower heat losses than the reference case having relative heat losses of 10.6 {\%}. All studied cases required a by-pass arrangement to maintain adequate temperature level for domestic hot water service outside heating season. This resulted in increased heat losses and in peaks in pressure drop. As in the future the operational environment is becoming more challenging for district heating, a need for comprehensive planning of whole systems taking into account all production, distribution and consumers will be more important than ever.",
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Rämä, M, Heikkinen, J, Klobut, K & Laitinen, A 2014, Network simulation of low heat demand residential area. in Proceedings of the International Symposium on District Heating and Cooling. pp. 539 - 542, 14th International Symposium on District Heating and Cooling, Stockholm, Sweden, 7/09/14.

Network simulation of low heat demand residential area. / Rämä, Miika; Heikkinen, Jorma; Klobut, Krzysztof; Laitinen, Ari.

Proceedings of the International Symposium on District Heating and Cooling. 2014. p. 539 - 542.

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review

TY - GEN

T1 - Network simulation of low heat demand residential area

AU - Rämä, Miika

AU - Heikkinen, Jorma

AU - Klobut, Krzysztof

AU - Laitinen, Ari

N1 - Project: 76879

PY - 2014

Y1 - 2014

N2 - Energy consumption and heat demand in district heating systems will decrease in the future as low energy houses become more common and energy efficiency measures are implemented. The solutions for district heating to meet the challenges due to this trend are being studied. Simulation of three variations of a residential area with realistic load profiles for both heating and domestic hot water consumption was carried out. A low connection rate system and a low supply temperature variant were compared to a traditional design. Dedicated models were used in both building and network simulation. Results showed relative heat losses of 19.1 % for the low connection rate case. Low supply temperature variant resulted in 10 % lower heat losses than the reference case having relative heat losses of 10.6 %. All studied cases required a by-pass arrangement to maintain adequate temperature level for domestic hot water service outside heating season. This resulted in increased heat losses and in peaks in pressure drop. As in the future the operational environment is becoming more challenging for district heating, a need for comprehensive planning of whole systems taking into account all production, distribution and consumers will be more important than ever.

AB - Energy consumption and heat demand in district heating systems will decrease in the future as low energy houses become more common and energy efficiency measures are implemented. The solutions for district heating to meet the challenges due to this trend are being studied. Simulation of three variations of a residential area with realistic load profiles for both heating and domestic hot water consumption was carried out. A low connection rate system and a low supply temperature variant were compared to a traditional design. Dedicated models were used in both building and network simulation. Results showed relative heat losses of 19.1 % for the low connection rate case. Low supply temperature variant resulted in 10 % lower heat losses than the reference case having relative heat losses of 10.6 %. All studied cases required a by-pass arrangement to maintain adequate temperature level for domestic hot water service outside heating season. This resulted in increased heat losses and in peaks in pressure drop. As in the future the operational environment is becoming more challenging for district heating, a need for comprehensive planning of whole systems taking into account all production, distribution and consumers will be more important than ever.

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KW - low heat demand

KW - energy efficiency

KW - buildings

M3 - Conference article in proceedings

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BT - Proceedings of the International Symposium on District Heating and Cooling

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Rämä M, Heikkinen J, Klobut K, Laitinen A. Network simulation of low heat demand residential area. In Proceedings of the International Symposium on District Heating and Cooling. 2014. p. 539 - 542