NDLI: BHE logging and cement hydration heat analyses for the determination of thermo-physical parameters

Content Provider	Springer Nature Link
Author	Homuth, Sebastian Hamm, Karsten Sass, Ingo
Copyright Year	2013
Abstract	To design an efficient and cost effective borehole heat exchanger (BHE), it is necessary to know the thermo-physical parameters of the subsurface at the project location. The quality management and the examination of existing BHEs are becoming particularly important with the increasing application of ground coupled heat pumps. The analysis of data collected from a BHE-logger (temperature-depth-measuring system) in a water-filled BHE allowed several geothermal parameters to be determined. A comparison of measurements obtained from the BHE-logs, geothermal response tests and laboratory soil tests indicated a good correlation. In addition to detecting hydraulic short circuits due to defects in the pipe system or backfill material, being relatively quick and easy to use, the BHE-logger can be a valuable tool in the long-term monitoring system and quality control of BHEs. Pour concevoir un dispositif efficace et rentable d’échange de chaleur en forage, il est nécessaire de connaître les paramètres physiques et thermiques du sous-sol à l’emplacement d’un projet. La gestion de la qualité des sondes géothermiques verticales devient particulièrement importante avec le développement croissant des pompes à chaleur couplées à des dispositifs d’échange de chaleur dans les sols. Plusieurs paramètres géothermiques peuvent être obtenus à partir d’enregistrements en forage remplis d’eau avec des BHE-logger donnant une mesure de la température en fonction de la profondeur. Des comparaisons entre des mesures obtenues à partir d’enregistrements en forage, de tests de réponse géothermique et de tests sur échantillons au laboratoire ont montré de bonnes corrélations. En plus de la possibilité de détecter des courts-circuits hydrauliques dus à des défauts dans le système de tuyauterie ou le matériau de remplissage, le BHE-logger, relativement rapide et facile à utiliser, peut être un outil précieux dans un système de surveillance à long terme et de contrôle de qualité des dispositifs d’échange de chaleur en forage.
Starting Page	93
Ending Page	100
Page Count	8
File Format	PDF
ISSN	14359529
Journal	Bulletin of the International Association of Engineering Geology - Bulletin de l'Association Internationale de Géologie de l'Ingénieur
Volume Number	72
Issue Number	1
e-ISSN	14359537
Language	English
Publisher	Springer-Verlag
Publisher Date	2013-01-09
Publisher Place	Berlin, Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Forage Dispositifs d’échange de chaleur en forage Conductivité thermique Enregistrement des températures de sub-surface Chaleur d’hydratation Contrôle de qualité Geotechnical Engineering & Applied Earth Sciences Geoengineering, Foundations, Hydraulics Geoecology/Natural Processes Nature Conservation
Content Type	Text
Resource Type	Article
Subject	Geology Geotechnical Engineering and Engineering Geology

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

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