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Publications (9 of 9) Show all publications
Pericault, Y., Bruaset, S., Ugarelli, R., Viklander, M. & Hedström, A. (2019). Correcting for the impact of past coordination on the estimation of pipe cohorts survival functions. In: : . Paper presented at 9th International Conference on Sewer Processes & Networks, Aalborg Denmark, August 27-30 2019.
Open this publication in new window or tab >>Correcting for the impact of past coordination on the estimation of pipe cohorts survival functions
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2019 (English)Conference paper, Oral presentation with published abstract (Other academic)
Keywords
Asset management, coordinated replacement, cohort survival functions
National Category
Water Engineering Infrastructure Engineering
Research subject
Urban Water Engineering
Identifiers
urn:nbn:se:ltu:diva-75082 (URN)
Conference
9th International Conference on Sewer Processes & Networks, Aalborg Denmark, August 27-30 2019
Funder
Swedish Research Council Formas
Available from: 2019-06-27 Created: 2019-06-27 Last updated: 2019-09-20
Pericault, Y. (2019). Shallow co-location of water, sewer and district heating pipes: Applicability in cold climate regions. (Licentiate dissertation). Luleå: Luleå University of Technology
Open this publication in new window or tab >>Shallow co-location of water, sewer and district heating pipes: Applicability in cold climate regions
2019 (English)Licentiate thesis, comprehensive summary (Other academic)
Alternative title[sv]
Grund samförläggning av VA- och fjärrvärmeledningar ovanför tjäldjupet : möjlighet i kalla regioner?
Place, publisher, year, edition, pages
Luleå: Luleå University of Technology, 2019
Series
Licentiate thesis / Luleå University of Technology, ISSN 1402-1757
National Category
Water Engineering
Research subject
Urban Water Engineering
Identifiers
urn:nbn:se:ltu:diva-73137 (URN)978-91-7790-326-0 (ISBN)978-91-7790-327-7 (ISBN)
Presentation
2019-05-10, C305, LTU, Luleå, 10:00 (English)
Opponent
Supervisors
Available from: 2019-03-08 Created: 2019-03-08 Last updated: 2019-05-03Bibliographically approved
Pericault, Y., Kärrman, E., Viklander, M. & Hedström, A. (2018). Data supporting the life cycle impact assessment and cost evaluation of technical alternatives for providing water and heating services to a suburban development in Gällivare Sweden. Data in Brief, 21, 1204-1208
Open this publication in new window or tab >>Data supporting the life cycle impact assessment and cost evaluation of technical alternatives for providing water and heating services to a suburban development in Gällivare Sweden
2018 (English)In: Data in Brief, E-ISSN 2352-3409, Vol. 21, p. 1204-1208Article in journal (Refereed) Published
Abstract [en]

The article presents input data that were used in Pericault et al. (2018) for life cycle impact assessment and total cost assessment of five technical alternatives for heat and water services provision in a suburban development in Sweden. The data consists of a list of environmental impacts (cumulative exergy demand of energy carriers – CExDe, global warming potential – GWP, abiotic depletion potential of elements – ADPE), costs, amortisation periods, lifetimes and output flows of the system processes composing the alternatives. The data was derived from values collected in lifecycle databases, environmental product declarations, scientific publications and personal communications with companies.

Place, publisher, year, edition, pages
Elsevier, 2018
National Category
Water Engineering
Research subject
Urban Water Engineering
Identifiers
urn:nbn:se:ltu:diva-71489 (URN)10.1016/j.dib.2018.10.058 (DOI)000457925900164 ()
Available from: 2018-11-07 Created: 2018-11-07 Last updated: 2019-03-08Bibliographically approved
Pericault, Y., Kärrman, E., Viklander, M. & Hedström, A. (2018). Expansion of Sewer, Water and District Heating Networks in Cold Climate Regions: an Integrated Sustainability Assessment. Sustainability, 10(10), Article ID 3743.
Open this publication in new window or tab >>Expansion of Sewer, Water and District Heating Networks in Cold Climate Regions: an Integrated Sustainability Assessment
2018 (English)In: Sustainability, ISSN 2071-1050, E-ISSN 2071-1050, Vol. 10, no 10, article id 3743Article in journal (Refereed) Published
Abstract [en]

This study presents an integrated sustainability assessment of technical alternatives for water and heating services provision in suburban areas affected by a cold climate. Each alternative combines a drinking water supply, sewerage (gravity or low-pressure), pipe freeze protection (deep burial or shallow burial with heat tracing) and heating solution (district heating or geothermal heat pumps). An innovative freeze protection option was considered, in which low-temperature district heating (LTDH) is used to heat trace shallow sewer and water pipes. First, the performance of each alternative regarding seven sustainability criteria was evaluated on a projected residential area in Sweden using a systems analysis approach. A multi-criteria method was then applied to propose a sustainability ranking of the alternatives based on a set of weights obtained from local stakeholders. The alternative with a deep buried gravity sewer and geothermal heat pumps was found to have the highest sustainability score in the case study. In the sensitivity analysis, the integrated trench solution with a gravity sewer, innovative heat tracing and LTDH was found to potentially top the sustainability ranking if geothermal energy was used as the district heating source, or if the weight of the cost criterion increased from 24% to 64%. The study highlights the need for integrated decision-making between different utility providers as an integrated solution can represent sustainability gains.

Place, publisher, year, edition, pages
Basel, Switzerland: MDPI, 2018
Keywords
low pressure sewer, low temperature district heating, freeze protection, life cycle assessment, multi-criteria
National Category
Water Engineering
Research subject
Urban Water Engineering
Identifiers
urn:nbn:se:ltu:diva-71253 (URN)10.3390/su10103743 (DOI)000448559400385 ()2-s2.0-85055094129 (Scopus ID)
Note

Validerad;2018;Nivå 2;2018-10-30 (svasva)

Available from: 2018-10-18 Created: 2018-10-18 Last updated: 2019-04-24Bibliographically approved
Pericault, Y., Risberg, M., Vesterlund, M., Viklander, M. & Hedström, A. (2017). A novel freeze protection strategy for shallow buried sewer pipes: temperature modelling and field investigation. Water Science and Technology, 76(2), 294-301
Open this publication in new window or tab >>A novel freeze protection strategy for shallow buried sewer pipes: temperature modelling and field investigation
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2017 (English)In: Water Science and Technology, ISSN 0273-1223, E-ISSN 1996-9732, Vol. 76, no 2, p. 294-301Article in journal (Refereed) Published
Abstract [en]

The burial of sewer and water pipes below the maximum ground frost depth can be very costly and laborious in regions with cold winters. If a freeze protection measure is applied, the utility lines can be installed in a shallower trench to reduce the excavation needs. One freeze protection measure, so called heat tracing, consists in supplying heat along the pipes. In this work, the use of 4th generation district heating as a heat tracing solution was investigated at a pilot site in Kiruna, Sweden. The influence of the system on sewer and water pipe temperatures was studied at a snow-free and snow-covered cross section. To this end, five heat tracing temperatures were tested and the corresponding sewer and water pipe temperatures were measured. The field experiment was also simulated with a two dimensional finite volume model. The study showed that, under the climatic conditions of the experiment, a heat tracing temperature of 25 °C allowed to prevent freezing of the pipes while keeping drinking water pipes in a safe temperature range at both cross sections. The other main result was that the developed finite volume model of the sections showed a good fitting to the experimental data

Place, publisher, year, edition, pages
IWA Publishing, 2017
Keywords
District heating, heat tracing, low temperature, pipe insulation, temperature modelling, utilidor
National Category
Water Engineering Energy Engineering
Research subject
Urban Water Engineering; Energy Engineering
Identifiers
urn:nbn:se:ltu:diva-63285 (URN)10.2166/wst.2017.174 (DOI)000406789800006 ()28726696 (PubMedID)2-s2.0-85026329219 (Scopus ID)
Note

Validerad;2017;Nivå 2;2017-08-15 (rokbeg)

Available from: 2017-05-09 Created: 2017-05-09 Last updated: 2019-03-08Bibliographically approved
Pericault, Y., Bruaset, S., Ugarelli, R., Saegrov, S., Viklander, M. & Hedström, A. (2017). Coordinated long term planning of sewer and water mains rehabilitation. In: : . Paper presented at Leading Edge Sustainable Asset Management of Water and Wastewater Infrastructure Conference. Trondheim, Norway, 20-22 June 2017.
Open this publication in new window or tab >>Coordinated long term planning of sewer and water mains rehabilitation
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2017 (English)Conference paper, Published paper (Other academic)
Abstract [en]

Long term planning methodologies for sewer and water mains rehabilitation play a key role in water infrastructure asset management by enabling modelling the influence of renewal strategies on various sustainability indicators. Long term rehabilitation scenarios defining annual replacement rates are typically compared in order to choose the best strategy for the sewer and drinking water network, separately. Another important factor for long term rehabilitation planning is the share of replacement work that will be coordinated with other infrastructures (e.g. water network for the sewer network and vice versa, roads, etc.). This reduces linear replacement costs but also shortens the service life of pipes replaced for coordination reason. The paper proposes an integrated methodology to evaluate the impact of different coordination strategies on future replacement costs for water and sewer networks renewal. The method is applied on a newly built residential area in the town of Gällivare in Sweden.

Keywords
coordination, replacement, road, cohort survival, investments
National Category
Water Engineering
Research subject
Water Resources Engineering
Identifiers
urn:nbn:se:ltu:diva-64912 (URN)
Conference
Leading Edge Sustainable Asset Management of Water and Wastewater Infrastructure Conference. Trondheim, Norway, 20-22 June 2017
Available from: 2017-07-26 Created: 2017-07-26 Last updated: 2017-11-24Bibliographically approved
Pericault, Y., Risberg, M., Vesterlund, M., Hedström, A. & Viklander, M. (2016). A novel freeze protection strategy for shallow buried sewer pipes: temperature modelling and field investigation. In: Proceedings of the 8th International Conference on Sewer Processes & Networks: . Paper presented at 8th International Conference on Sewer Processes & Networks, 31/8-2/9 2016, Rotterdam..
Open this publication in new window or tab >>A novel freeze protection strategy for shallow buried sewer pipes: temperature modelling and field investigation
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2016 (English)In: Proceedings of the 8th International Conference on Sewer Processes & Networks, 2016Conference paper, Published paper (Other academic)
Abstract [en]

The burial of sewer and water pipes below the maximum ground frost depth can be very costly and laborious in regions with cold winters. If a freeze protection measure is applied, the utility lines can be installed in a shallower trench to reduce the excavation needs during construction and maintenance works. One freeze protection measure, so called heat tracing, consist in supplying heat along the pipes. In this work, the use of 4th generation district heating as a heat tracing solution was investigated at a pilot site in Kiruna, Sweden. The influence of the system on sewer and water pipes temperatures was studied experimentally and numerically at a snow-free and snow-covered cross section. The study showed that, under the climatic conditions of the experiment, a heat tracing temperature of 25 ˚C allowed to prevent freezing of the pipes while keeping drinking water pipes in safe temperature range at both cross sections. The other main result was that a finite volume model of the sections was developed and showed a good fitting to the experimental data.

National Category
Water Engineering Energy Engineering
Research subject
Urban Water Engineering; Energy Engineering
Identifiers
urn:nbn:se:ltu:diva-59899 (URN)
Conference
8th International Conference on Sewer Processes & Networks, 31/8-2/9 2016, Rotterdam.
Available from: 2016-10-24 Created: 2016-10-24 Last updated: 2017-11-24Bibliographically approved
Pericault, Y., Hedström, A., Dahl, J., Vesterlund, M. & Olsson, G. (2016). District heat tracing of water and sewer lines in Kiruna, Sweden (ed.). Paper presented at Sanitation in Cold Climate Regions : 12/04/2016 - 14/04/2016. Paper presented at Sanitation in Cold Climate Regions : 12/04/2016 - 14/04/2016.
Open this publication in new window or tab >>District heat tracing of water and sewer lines in Kiruna, Sweden
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2016 (English)Conference paper, Oral presentation only (Other academic)
National Category
Water Engineering Energy Engineering
Research subject
Urban Water Engineering; Energy Engineering
Identifiers
urn:nbn:se:ltu:diva-35022 (URN)9642777e-1d16-404d-9344-4e07c651bbba (Local ID)9642777e-1d16-404d-9344-4e07c651bbba (Archive number)9642777e-1d16-404d-9344-4e07c651bbba (OAI)
Conference
Sanitation in Cold Climate Regions : 12/04/2016 - 14/04/2016
Note
Godkänd; 2016; 20160125 (youper)Available from: 2016-09-30 Created: 2016-09-30 Last updated: 2017-11-25Bibliographically approved
Pericault, Y., Risberg, M., Viklander, M. & Hedström, A.Temperature performance of a heat-traced utilidor for sewer and water pipes in seasonally frozen ground.
Open this publication in new window or tab >>Temperature performance of a heat-traced utilidor for sewer and water pipes in seasonally frozen ground
(English)Manuscript (preprint) (Other academic)
Keywords
Low temperature district heating, pipe insulation, freeze protection, sewer pipe, drinking water pipe
National Category
Water Engineering Infrastructure Engineering
Research subject
Urban Water Engineering; Energy Engineering
Identifiers
urn:nbn:se:ltu:diva-73076 (URN)
Available from: 2019-03-01 Created: 2019-03-01 Last updated: 2019-03-08
Organisations
Identifiers
ORCID iD: ORCID iD iconorcid.org/0000-0002-8804-8417

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