NDLI: Research on the thermal conductivity and moisture migration characteristics of Shanghai mucky clay. I: Experimental modeling

Content Provider	Springer Nature Link
Author	Tang, Yiqun Zhou, Jie Zhang, Modan Liu, Yuting
Copyright Year	2014
Abstract	With the development and exploitation of geothermal energy ground source heat pump (GSHP) systems are being utilized all over Shanghai due to its unique energy advantages. A model experiment is designed and carried out to simulate an alternately-running GSHP system in summer and winter. It aims to study the characteristics of thermal conductivity and moisture migration of saturated soft clay (Shanghai mucky clay) with respect to thermal balance during the operation of a GSHP system by a series of laboratory modeling experiments. Thermal conductivity is an essential thermo-physical parameter for designing a GSHP system and is calculated [1.3680 W/(m °C)] rather than obtained via the expensive and time consuming in situ thermal response test. The value measured in laboratory experiments [1.1200 W/(m °C)] by transient probes did not comply well with in situ data. The Thermal conduction and moisture migration characteristics of Shanghai mucky clay indicate it is a geo-material with good heat storage but poor heat release based on a comparison between summer and winter conditions. All results provide reference for further discussion regarding the environmental effect of thermal balance surrounding a GSHP system. They are essential and valuable for the development of GSHP systems in Shanghai.
Starting Page	577
Ending Page	593
Page Count	17
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	74
Issue Number	2
e-ISSN	14359537
Language	English
Publisher	Springer Berlin Heidelberg
Publisher Date	2014-08-14
Publisher Place	Berlin, Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	GSHP system Shanghai mucky clay Model experiment Thermal conductivity Moisture migration Thermal balance 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

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