Results 21 to 30 of about 290,321 (263)
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
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Critical Review on Efficiency of Ground Heat Exchangers in Heat Pump Systems
Clean Technologies, 2020 Use of ground source heat pumps has increased significantly in recent years for space heating and cooling of residential houses and commercial buildings, in both heating (i.e., cold region) and cooling (i.e., warm region) dominated climates, due to its ...
Adel Eswiasi, Phalguni Mukhopadhyaya
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Analysis of Relaxation Time of Temperature in Thermal Response Test for Design of Borehole Size
Energies, 2020 A new practical method for thermal response test (TRT) is proposed herein to estimate the groundwater velocity and effective thermal conductivity of geological zones.
Hobyung Chae +5 more
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Estimation of the vertical borehole thermal parameters based on the evolution algorithm using temperature response functions [PDF]
Estonian Journal of Earth Sciences, 2019 The vertical borehole ground heat exchange performance is still the issue for the engineers installing vertical borehole ground plants using ground-coupled heat pumps.
Audrius Indriulionis +2 more
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Energies, 2022 Investigating the constructions of borehole heat exchangers with high efficiency (unit heat transfer between the heat carrier and ground) is important. One of the means to improve efficiency is the use of the most efficient construction of the borehole ...
Tomasz Sliwa +3 more
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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
Energies, 2021 The knowledge of the ground thermal properties, and in particular the ground thermal conductivity is fundamental for the correct sizing of the Ground Coupled Heat Pump (GCHP) plant.
Stefano Morchio +3 more
doaj +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 ...
R. Hajovsky +3 more
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Thermal response tests: A biased parameter estimation procedure?
Geothermics, 2021 Abstract Thermal response tests are used to estimate the thermal properties of the ground and the borehole heat exchanger being tested. They are thus important for the design of borehole thermal energy storages and ground source heat pump systems. In this study, a theoretical framework is proposed in order to investigate if noise on the heat rate ...
Willem Mazzotti Pallard +1 more
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Introduction to thermal response tests
Acque Sotterranee - Italian Journal of Groundwater, 2016 Not available.
openaire +4 more sources