scholarly journals Comprehensive application of hydrogeological survey and in-situ thermal response test

2021 ◽  
pp. 101287
Author(s):  
Wei Song ◽  
Ziteng Li ◽  
Yue Jin ◽  
Bo Zhang ◽  
Tuanfeng Zheng
Keyword(s):  
Thermal Response ◽  
Thermal Response Test ◽  
Response Test

scholarly journals Improved p(t)-linear Average Method for Ground Thermal Properties Estimation during in-situ Thermal Response Test

2015 ◽  
Vol 121 ◽  
pp. 726-734 ◽  
Author(s):  
Linfeng Zhang ◽  
Quan Zhang ◽  
José Acuña ◽  
Xiaowei Ma
Keyword(s):  
Thermal Properties ◽  
Average Method ◽  
Thermal Response ◽  
Thermal Response Test ◽  
Response Test

scholarly journals Clearing a Path for Ground Heat Exchange Systems: A Review on Thermal Response Test (TRT) Methods and a Geotechnical Routine Test for Estimating Soil Thermal Properties

Energies ◽  
2020 ◽  
Vol 13 (11) ◽  
pp. 2965 ◽  
Author(s):  
Alessandro Franco ◽  
Paolo Conti
Keyword(s):  
Experimental Analysis ◽  
Thermal Response ◽  
Ground Level ◽  
Thermal Response Test ◽  
Response Test ◽  
Foundation Base ◽  
Definition Of ◽  
Geotechnical Tests

The performance of ground heat exchanger systems depends on the knowledge of the thermal parameters of the ground, such as thermal conductivity, capacity, and diffusivity. The knowledge of these parameters often requires quite accurate experimental analysis, known as a thermal response test (TRT). In this paper, after a general analysis of the various available types of TRT and a study of the theoretical basics of the method, we explore the perspective of the definition of a simplified routine method of analysis based on the combination of a particular version of TRT and the routine geotechnical tests for the characterization of soil stratigraphy and the ground characteristics. Geotechnical analyses are indeed mandatory before the construction of new buildings, even if limited to 30 m below the ground level or foundation base when piles are needed. The idea of developing TRT in connection with geotechnical test activity has the objective of promoting the widespread use of in situ experimental analysis and reducing TRT costs and time. The considerations presented in the present paper lead to reconsidering a particular variety of the TRT, in particular, the versions known as thermal response test while drilling (TRTWD) and TRT using heating cables (HC-TRT).

Parameter estimation of in-situ thermal response test with unstable heat rate

Energy ◽  
2015 ◽  
Vol 88 ◽  
pp. 497-505 ◽  
Author(s):  
Changxing Zhang ◽  
Wei Song ◽  
Shicai Sun ◽  
Donggen Peng
Keyword(s):  
Parameter Estimation ◽  
Thermal Response ◽  
Heat Rate ◽  
Thermal Response Test ◽  
Response Test

scholarly journals Evaluation of Ground Thermal Conductivity by Performing In-Situ Thermal Response test (TRT) and CFD Back-Analysis

2012 ◽  
Vol 28 (12) ◽  
pp. 5-15 ◽  
Author(s):  
Moonseo Park ◽  
Chulho Lee ◽  
Sangwoo Park ◽  
Byonghu Sohn ◽  
Hangseok Choi
Keyword(s):  
Thermal Conductivity ◽  
Back Analysis ◽  
Thermal Response ◽  
Thermal Response Test ◽  
Response Test

scholarly journals Experimental determination of thermal conductivity of soil with a thermal response test

2012 ◽  
Vol 16 (4) ◽  
pp. 1117-1126 ◽  
Author(s):  
Milos Banjac ◽  
Maja Todorovic ◽  
Milan Ristanovic ◽  
Radoslav Galic
Keyword(s):  
Thermal Conductivity ◽  
Experimental Determination ◽  
Outer Part ◽  
Thermal Response ◽  
Heating System ◽  
Thermal Response Test ◽  
Response Test ◽  
In Situ Conditions

Optimal design of a borehole heat exchanger, as the outer part of a ground source heat pump heating system, requires information on the thermal properties of the soil. Those data, the effective thermal conductivity of the soil ?eff and the average temperature of the soil T0, enable us to determine the necessary number and depth of boreholes. The determination of thermal conductivity of the soil in laboratory experiments does not usually coincide with the data under in-situ conditions. Therefore, an in-situ method of experimental determination of these parameters, the so-called thermal response test, is presented in this paper. In addition to the description of the experimental procedure and installation overview, the paper describes methods based on theory and presents their basic limitations, through the presentation of experimental data.

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