The analysis of soil thermal properties is essential for the design, choice and installation of underground cables, as improper installations can often lead to premature failures. Indeed soil thermal resistivity affects the ampacity of cables. In order to perform this analysis, an innovative thermal probe has been designed and employed for soil thermal resistivity evaluation in different types of soil and with variable moisture content. Other complex and sophisticated soil thermal probes exist in the market, nevertheless the thermal probe proposed in the present paper has the advantages of being low cost, handheld and integrated into an automatic and advanced measurement acquisition system. Furthermore, a soil moisture sensor has been used to evaluate the relationship between the soil thermal resistivity and its moisture content. Measurements have been acquired, processed and stored continuously by a microcontroller board, Arduino Uno, programmed with a LabVIEW interface.
Soil thermal resistivity: innovative measurement system / Calcara, L.; Di Felice, G.; Ferrucci, F.; Marchetti, F. A.. - (2019), pp. 1-5. (Intervento presentato al convegno 19th IEEE International conference on environment and electrical engineering and 2019 IEEE industrial and commercial power systems Europe, EEEIC/I and CPS Europe 2019 tenutosi a Genoa; Italy) [10.1109/EEEIC.2019.8783756].
Soil thermal resistivity: innovative measurement system
Calcara L.;Di Felice G.;Ferrucci F.;
2019
Abstract
The analysis of soil thermal properties is essential for the design, choice and installation of underground cables, as improper installations can often lead to premature failures. Indeed soil thermal resistivity affects the ampacity of cables. In order to perform this analysis, an innovative thermal probe has been designed and employed for soil thermal resistivity evaluation in different types of soil and with variable moisture content. Other complex and sophisticated soil thermal probes exist in the market, nevertheless the thermal probe proposed in the present paper has the advantages of being low cost, handheld and integrated into an automatic and advanced measurement acquisition system. Furthermore, a soil moisture sensor has been used to evaluate the relationship between the soil thermal resistivity and its moisture content. Measurements have been acquired, processed and stored continuously by a microcontroller board, Arduino Uno, programmed with a LabVIEW interface.| File | Dimensione | Formato | |
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