District heating networks: enhancement of the efficiency

During the decades the district heating’s (DH) advantages (more cost-efficient heat generation and reduced air pollution) overcompensated the additional costs of transmission and distribution of the centrally produced thermal energy to consumers. Rapid increase in the efficiency of low-power heaters...

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Main Authors: Ugis Sarma, Girts Karnitis, Janis Zuters, Edvins Karnitis
Format: Article
Language:English
Published: UAB Sustainability for Regions 2019-09-01
Series:Insights into Regional Development
Online Access:https://jssidoi.org/ird/article/15
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author Ugis Sarma
Girts Karnitis
Janis Zuters
Edvins Karnitis
author_facet Ugis Sarma
Girts Karnitis
Janis Zuters
Edvins Karnitis
author_sort Ugis Sarma
collection DOAJ
description During the decades the district heating’s (DH) advantages (more cost-efficient heat generation and reduced air pollution) overcompensated the additional costs of transmission and distribution of the centrally produced thermal energy to consumers. Rapid increase in the efficiency of low-power heaters, development of separated low heat density areas in cities reduce the competitiveness of the large centralized DH systems in comparison with the distributed cluster-size networks and even local heating. Reduction of transmission costs, enhancement of the network efficiency by optimization of the design of the DH networks become a critical issue. The methodology for determination of the key drivers of the cost-efficiency of the DH networks to implement the most efficient (cost-minimal) thermal energy transmission was developed in this study. An inductive benchmarking modelling was applied; the general causal regularity is based on the observations of specific cases, thus determining the relationships between the network’s design and thermal indicators as predictors and transmission costs as the target variable. The key drivers of the network efficiency were disclosed – the network length and the largest inner diameter of the pipes. The methodology is applicable for use by municipalities and heat providers for the heating planning of the new housing developments as well as renovation and/or expansion of the existing DH networks.
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spelling doaj-art-c8eab972124e4dd19879580748258eeb2025-08-20T03:05:10ZengUAB Sustainability for RegionsInsights into Regional Development2669-01952019-09-011320021310.9770/ird.2019.1.3(2)District heating networks: enhancement of the efficiencyUgis Sarmahttps://orcid.org/0000-0003-4654-4647Girts Karnitishttps://orcid.org/0000-0002-7563-6383Janis Zutershttps://orcid.org/0000-0002-3194-9142Edvins Karnitishttps://orcid.org/0000-0001-6784-7327During the decades the district heating’s (DH) advantages (more cost-efficient heat generation and reduced air pollution) overcompensated the additional costs of transmission and distribution of the centrally produced thermal energy to consumers. Rapid increase in the efficiency of low-power heaters, development of separated low heat density areas in cities reduce the competitiveness of the large centralized DH systems in comparison with the distributed cluster-size networks and even local heating. Reduction of transmission costs, enhancement of the network efficiency by optimization of the design of the DH networks become a critical issue. The methodology for determination of the key drivers of the cost-efficiency of the DH networks to implement the most efficient (cost-minimal) thermal energy transmission was developed in this study. An inductive benchmarking modelling was applied; the general causal regularity is based on the observations of specific cases, thus determining the relationships between the network’s design and thermal indicators as predictors and transmission costs as the target variable. The key drivers of the network efficiency were disclosed – the network length and the largest inner diameter of the pipes. The methodology is applicable for use by municipalities and heat providers for the heating planning of the new housing developments as well as renovation and/or expansion of the existing DH networks.https://jssidoi.org/ird/article/15
spellingShingle Ugis Sarma
Girts Karnitis
Janis Zuters
Edvins Karnitis
District heating networks: enhancement of the efficiency
Insights into Regional Development
title District heating networks: enhancement of the efficiency
title_full District heating networks: enhancement of the efficiency
title_fullStr District heating networks: enhancement of the efficiency
title_full_unstemmed District heating networks: enhancement of the efficiency
title_short District heating networks: enhancement of the efficiency
title_sort district heating networks enhancement of the efficiency
url https://jssidoi.org/ird/article/15
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AT girtskarnitis districtheatingnetworksenhancementoftheefficiency
AT janiszuters districtheatingnetworksenhancementoftheefficiency
AT edvinskarnitis districtheatingnetworksenhancementoftheefficiency