Results 21 to 30 of about 314,980 (299)
Experimental determination of thermal conductivity of soil with a thermal response test [PDF]
Thermal Science, 2012 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.
Banjac, Miloš +3 more
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Comparison of two different models for pile thermal response test interpretation [PDF]
, 2014 Thermal response tests (TRTs) are regularly used to characterise the thermal resistance of borehole heat exchangers and to assess the thermal conductivity of the surrounding ground.
Loveridge, F.A. +8 more
core +1 more source
Thermal Response Test (TRT) – System for Measurement of Thermal Response of Rock Massif
IFAC Proceedings Volumes, 2013 Abstract The article describes an experimental system for measuring the temperature response of the rock massif known as the Thermal Response Test (TRT), its activity and usage patterns. The response of the rock mass is represented by the value of thermal conductivity of rocks Λ, which characterizes the ability of rocks to conduct the heat ...
Radovan Hájovský +3 more
openaire +1 more source
Energies, 2019 Research on borehole heat exchangers is described on the development of a method for the determination, based on thermal response tests, of the effective thermal conductivity and the thermal resistivity for borehole heat exchangers.
Aneta Sapińska-Sliwa +4 more
doaj +1 more source
The thermal behaviour of three different auger pressure grouted piles used as heat exchangers [PDF]
, 2014 Three auger pressure grouted (APG) test piles were constructed at a site in Richmond, Texas. The piles were each equipped with two U-loops of heat transfer pipes so that they could function as pile heat exchangers.
Brettmann, T +11 more
core +1 more source
Comprehensive application of hydrogeological survey and in-situ thermal response test
Case Studies in Thermal Engineering, 2021 Thermal properties of rock-soil are of great importance for the design of borehole heat exchangers (BHEs). In the process of testing thermal properties of rock-soil through an in-situ thermal response test (TRT), groundwater seepage directly affects the ...
Wei Song +4 more
doaj +1 more source
Flow-controlled thermal response test and its comparison with the conventional test methods [PDF]
Geothermics, 2023 A novel flow-controlled (FC) thermal response test (TRT) system is introduced to resolve the recently addressed inconsistency between the constant heat flux (CHF) and constant temperature (CT) TRTs. FC-TRT allows us to keep both inlet and outlet temperatures constant and improve the accuracy of CT-TRT.
Murat Aydin +3 more
openaire +3 more sources
Pile heat exchangers: thermal behaviour and interactions [PDF]
, 2013 Thermal piles – that is structural foundation piles also used as heat exchangers as part of a ground energy system – are increasingly being adopted for their contribution to more sustainable energy strategies for new buildings.
Loveridge, F.A. +3 more
core +1 more source
Energies, 2022 To design an efficient ground source heat pump (GSHP) system, it is important to accurately measure the thermophysical parameters of the geotechnical layer.
Yongjie Ma +5 more
doaj +1 more source
E3S Web of Conferences, 2018 The recognition of geological and thermal conditions of the rock mass in the case of designing a vertical borehole heat exchanger as the ground source for heat pump installations is a key issue affecting the efficiency of the heating/cooling system ...
Kaczmarczyk Michał +3 more
doaj +1 more source