VDI 4640 Part 5:2020 Edition

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Thermal use of the underground – Thermal response test (TRT)

Published By	Publication Date	Number of Pages
DIN	2020-07	64

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Categories: 27.080 - Heat pumps, 27.190 - Biological sources and alternative sources of energy, DIN

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Description

The standard describes a measurement method for the determination of thermal properties of the underground and the heat transfer characteristics of the ground heat exchanger. These parameters are necessary for the design of a heat source system. The thermal response test (TRT) is such a measurement method and allows a site survey in which following parameters can be determined: the effective thermal conductivity of the rock over the entire length of a borehole heat exchanger and the borehole resistance, the thermal resistance from the fluid to the rock for the used borehole heat exchanger.

Additional information

Published Code	DIN
Published By	Deutsches Institut für Normung
Publication Date	2020-07
Pages Count	64
Language	Germany
Descriptors	Definitions, Energy technology, Geotechnics, Geothermal power, Ground, Heat accumulators, Heat sources, Heat transfer, Measurement, Measurement data, Measuring probes, Measuring techniques, Renewable energy, Response, Specification (approval), Subsoil, Temperature measurement, Temperature of the earth, Test report, Testing, Thermal, Thermal conductivity, Thermal properties, Underground, Utilization, Bottom, Reaction, Exploitation, Soils, Floors
File Size	7.4 MB
ICS Codes	27.080 - Heat pumps 27.190 - Biological sources and alternative sources of energy

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VDI 4640 Part 5:2020 Edition

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