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First Measurements of a Monitoring project on a BTES system
KTH, School of Industrial Engineering and Management (ITM), Energy Technology, Applied Thermodynamics and Refrigeration.ORCID iD: 0000-0002-5093-9070
KTH, School of Industrial Engineering and Management (ITM), Energy Technology, Applied Thermodynamics and Refrigeration.
KTH, School of Industrial Engineering and Management (ITM), Energy Technology, Applied Thermodynamics and Refrigeration.ORCID iD: 0000-0002-3490-1777
2017 (English)In: IGSHPA Technical/Research Conference and Expo, Denver, March 14-16, 2017, International Ground Source Heat Pump Association , 2017Conference paper, (Refereed)
Abstract [en]

Performance of Borehole Thermal Energy Storage (BTES) systems depends on the temperature of the secondary fluid, circulating through the ground-loop heat exchangers. Borehole systems are therefore designed in order to ensure that inlet and outlet temperatures of the secondary fluid are within given operational limits during the whole life-time of the system. Monitoring the operation of the bore fields is crucial for the validation of existing models utilized for their design. Measured data provides valuable information for researchers and practitioners working in the field. A first data-set from an ongoing monitoring project is presented in this article. The monitoring system comprises temperature sensors and power meters placed at strategic locations within the bore field. A distributed temperature sensing rig that employs fiber optic cables as linear sensors is utilized to measure temperature every meter along the depth of nine monitored boreholes, yielding data regarding both temporal and spatial variation of the temperature in the ground. The heat exchanged with the ground is also measured via power meters in all nine monitored boreholes as well as at the manifold level. The BTES system is located at the Stockholm University Campus, Sweden, and consists of 130 boreholes, 230 meters deep. After more than a year of planning and installation work, some selected measurements recorded in the BTES during the first months of operation are reported in this article.

Place, publisher, year, edition, pages
International Ground Source Heat Pump Association , 2017.
Keyword [en]
ground source heat pump, monitoring project, BTES
National Category
Energy Engineering
Research subject
Energy Technology
Identifiers
URN: urn:nbn:se:kth:diva-202532OAI: oai:DiVA.org:kth-202532DiVA: diva2:1077155
Conference
IGSHPA Technical/Research Conference and Expo, Denver, March 14-16, 2017
Note

QC 20170330

Available from: 2017-02-26 Created: 2017-02-26 Last updated: 2017-03-30Bibliographically approved

Open Access in DiVA

2017 03 Monzo, Lazzarotto, Acuna First Measurements of a Monitoring project on a BTES system(1222 kB)20 downloads
File information
File name FULLTEXT01.pdfFile size 1222 kBChecksum SHA-512
04a80cde006a6a9bd6f154e9093995a2fd058d654355b108b5fe2ed1a1e771882fbb18a8eed7913d95ff5b45ae165ff00f02ed6ecf1202ce25421702c29945f8
Type fulltextMimetype application/pdf

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https://shareok.org/handle/11244/48322

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Monzó, PatriciaLazzarotto, AlbertoAcuña, José
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