Effects of Hot-Water-Pipeline Renovation in a District Heating System

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LJUBENKO, Andrej ;POREDOŠ, Alojz ;ZAGER, Miran .
Effects of Hot-Water-Pipeline Renovation in a District Heating System. 
Strojniški vestnik - Journal of Mechanical Engineering, [S.l.], v. 57, n.11, p. 834-842, june 2018. 
ISSN 0039-2480.
Available at: <https://www.sv-jme.eu/article/effects-of-hot-water-pipeline-renovation-in-a-district-heating-system/>. Date accessed: 17 sep. 2019. 
doi:http://dx.doi.org/10.5545/sv-jme.2010.227.
Ljubenko, A., Poredoš, A., & Zager, M.
(2011).
Effects of Hot-Water-Pipeline Renovation in a District Heating System.
Strojniški vestnik - Journal of Mechanical Engineering, 57(11), 834-842.
doi:http://dx.doi.org/10.5545/sv-jme.2010.227
@article{sv-jmesv-jme.2010.227,
	author = {Andrej  Ljubenko and Alojz  Poredoš and Miran  Zager},
	title = {Effects of Hot-Water-Pipeline Renovation in a District Heating System},
	journal = {Strojniški vestnik - Journal of Mechanical Engineering},
	volume = {57},
	number = {11},
	year = {2011},
	keywords = {district heating; heat losses; pipeline renovation; thermal bridges},
	abstract = {In this paper the attention is on the heat losses of a main, aboveground supply, hot-water pipeline, whose length is 5430 m. It is situated between the Šoštanj Thermal Power Plant (TEŠ) and the Central Energy Station (CES) Velenje as part of the district heating system in the Šaleška Valley. It was renovated because major heat losses were identified. A numerical analysis and a comparison between the temperature fields of the pipe’s insulation before and after the renovation was performed to discover the main causes for the high heat losses before renovation. An integral measuring method for determining the heat losses was adapted and used to determine the pipeline’s heat losses after the renovation. Taking into consideration the real operating parameters, the annual energy savings and the consequent operational cost reduction, due to the lower heat losses, resulting from the pipeline renovations, are presented. The calculation is made with measured heat-loss coefficients and is therefore based on the real state of the pipeline. The aim is to show the necessity to investigate the heat losses of a hot-water pipeline whose design or state of insulation is questionable.},
	issn = {0039-2480},	pages = {834-842},	doi = {10.5545/sv-jme.2010.227},
	url = {https://www.sv-jme.eu/article/effects-of-hot-water-pipeline-renovation-in-a-district-heating-system/}
}
Ljubenko, A.,Poredoš, A.,Zager, M.
2011 June 57. Effects of Hot-Water-Pipeline Renovation in a District Heating System. Strojniški vestnik - Journal of Mechanical Engineering. [Online] 57:11
%A Ljubenko, Andrej 
%A Poredoš, Alojz 
%A Zager, Miran 
%D 2011
%T Effects of Hot-Water-Pipeline Renovation in a District Heating System
%B 2011
%9 district heating; heat losses; pipeline renovation; thermal bridges
%! Effects of Hot-Water-Pipeline Renovation in a District Heating System
%K district heating; heat losses; pipeline renovation; thermal bridges
%X In this paper the attention is on the heat losses of a main, aboveground supply, hot-water pipeline, whose length is 5430 m. It is situated between the Šoštanj Thermal Power Plant (TEŠ) and the Central Energy Station (CES) Velenje as part of the district heating system in the Šaleška Valley. It was renovated because major heat losses were identified. A numerical analysis and a comparison between the temperature fields of the pipe’s insulation before and after the renovation was performed to discover the main causes for the high heat losses before renovation. An integral measuring method for determining the heat losses was adapted and used to determine the pipeline’s heat losses after the renovation. Taking into consideration the real operating parameters, the annual energy savings and the consequent operational cost reduction, due to the lower heat losses, resulting from the pipeline renovations, are presented. The calculation is made with measured heat-loss coefficients and is therefore based on the real state of the pipeline. The aim is to show the necessity to investigate the heat losses of a hot-water pipeline whose design or state of insulation is questionable.
%U https://www.sv-jme.eu/article/effects-of-hot-water-pipeline-renovation-in-a-district-heating-system/
%0 Journal Article
%R 10.5545/sv-jme.2010.227
%& 834
%P 9
%J Strojniški vestnik - Journal of Mechanical Engineering
%V 57
%N 11
%@ 0039-2480
%8 2018-06-29
%7 2018-06-29
Ljubenko, Andrej, Alojz  Poredoš, & Miran  Zager.
"Effects of Hot-Water-Pipeline Renovation in a District Heating System." Strojniški vestnik - Journal of Mechanical Engineering [Online], 57.11 (2011): 834-842. Web.  17 Sep. 2019
TY  - JOUR
AU  - Ljubenko, Andrej 
AU  - Poredoš, Alojz 
AU  - Zager, Miran 
PY  - 2011
TI  - Effects of Hot-Water-Pipeline Renovation in a District Heating System
JF  - Strojniški vestnik - Journal of Mechanical Engineering
DO  - 10.5545/sv-jme.2010.227
KW  - district heating; heat losses; pipeline renovation; thermal bridges
N2  - In this paper the attention is on the heat losses of a main, aboveground supply, hot-water pipeline, whose length is 5430 m. It is situated between the Šoštanj Thermal Power Plant (TEŠ) and the Central Energy Station (CES) Velenje as part of the district heating system in the Šaleška Valley. It was renovated because major heat losses were identified. A numerical analysis and a comparison between the temperature fields of the pipe’s insulation before and after the renovation was performed to discover the main causes for the high heat losses before renovation. An integral measuring method for determining the heat losses was adapted and used to determine the pipeline’s heat losses after the renovation. Taking into consideration the real operating parameters, the annual energy savings and the consequent operational cost reduction, due to the lower heat losses, resulting from the pipeline renovations, are presented. The calculation is made with measured heat-loss coefficients and is therefore based on the real state of the pipeline. The aim is to show the necessity to investigate the heat losses of a hot-water pipeline whose design or state of insulation is questionable.
UR  - https://www.sv-jme.eu/article/effects-of-hot-water-pipeline-renovation-in-a-district-heating-system/
@article{{sv-jme}{sv-jme.2010.227},
	author = {Ljubenko, A., Poredoš, A., Zager, M.},
	title = {Effects of Hot-Water-Pipeline Renovation in a District Heating System},
	journal = {Strojniški vestnik - Journal of Mechanical Engineering},
	volume = {57},
	number = {11},
	year = {2011},
	doi = {10.5545/sv-jme.2010.227},
	url = {https://www.sv-jme.eu/article/effects-of-hot-water-pipeline-renovation-in-a-district-heating-system/}
}
TY  - JOUR
AU  - Ljubenko, Andrej 
AU  - Poredoš, Alojz 
AU  - Zager, Miran 
PY  - 2018/06/29
TI  - Effects of Hot-Water-Pipeline Renovation in a District Heating System
JF  - Strojniški vestnik - Journal of Mechanical Engineering; Vol 57, No 11 (2011): Strojniški vestnik - Journal of Mechanical Engineering
DO  - 10.5545/sv-jme.2010.227
KW  - district heating, heat losses, pipeline renovation, thermal bridges
N2  - In this paper the attention is on the heat losses of a main, aboveground supply, hot-water pipeline, whose length is 5430 m. It is situated between the Šoštanj Thermal Power Plant (TEŠ) and the Central Energy Station (CES) Velenje as part of the district heating system in the Šaleška Valley. It was renovated because major heat losses were identified. A numerical analysis and a comparison between the temperature fields of the pipe’s insulation before and after the renovation was performed to discover the main causes for the high heat losses before renovation. An integral measuring method for determining the heat losses was adapted and used to determine the pipeline’s heat losses after the renovation. Taking into consideration the real operating parameters, the annual energy savings and the consequent operational cost reduction, due to the lower heat losses, resulting from the pipeline renovations, are presented. The calculation is made with measured heat-loss coefficients and is therefore based on the real state of the pipeline. The aim is to show the necessity to investigate the heat losses of a hot-water pipeline whose design or state of insulation is questionable.
UR  - https://www.sv-jme.eu/article/effects-of-hot-water-pipeline-renovation-in-a-district-heating-system/
Ljubenko, Andrej, Poredoš, Alojz, AND Zager, Miran.
"Effects of Hot-Water-Pipeline Renovation in a District Heating System" Strojniški vestnik - Journal of Mechanical Engineering [Online], Volume 57 Number 11 (29 June 2018)

Authors

Affiliations

  • University of Ljubljana, Faculty of Mechanical Engineering
  • University of Ljubljana, Faculty of Mechanical Engineering
  • Municipal Utility Company Velenje, Slovenia

Paper's information

Strojniški vestnik - Journal of Mechanical Engineering 57(2011)11, 834-842

10.5545/sv-jme.2010.227

In this paper the attention is on the heat losses of a main, aboveground supply, hot-water pipeline, whose length is 5430 m. It is situated between the Šoštanj Thermal Power Plant (TEŠ) and the Central Energy Station (CES) Velenje as part of the district heating system in the Šaleška Valley. It was renovated because major heat losses were identified. A numerical analysis and a comparison between the temperature fields of the pipe’s insulation before and after the renovation was performed to discover the main causes for the high heat losses before renovation. An integral measuring method for determining the heat losses was adapted and used to determine the pipeline’s heat losses after the renovation. Taking into consideration the real operating parameters, the annual energy savings and the consequent operational cost reduction, due to the lower heat losses, resulting from the pipeline renovations, are presented. The calculation is made with measured heat-loss coefficients and is therefore based on the real state of the pipeline. The aim is to show the necessity to investigate the heat losses of a hot-water pipeline whose design or state of insulation is questionable.

district heating; heat losses; pipeline renovation; thermal bridges