The capacity of electrical cables buried in the same cross section depends on the capacity to dispose of heat into the ground around him. This depends on many factors: soil characteristics, moisture, installation mode etc. The CEI 20-21 regarding the uses expressions that sometimes are not very cautious and dimensioning of insufficient capacities for cables. This work has been done a study of the behavior of underground cable based on using a forecasting model that uses the techniques of cfd. This model was validated with a physical model in miniature, made from data collected in situ measurement campaigns carried out in underground conduits in the province of Foggia (Italy) that allowed the choice of the mesh to get more 'correct solution to of the problem. Thus it was possible to evaluate the differences with the CEI and attribute the correction factors that lead to more realistic values
DE LIETO VOLLARO, R., Vallati, A. (2012). STUDY OF A MODEL FOR THE EVALUATION OF THE HEAT LOSSES FROM ELECTRIC CABLES BURIED ACCORDING TO THE NORM STANDARD. In Advanced Materials Research.
STUDY OF A MODEL FOR THE EVALUATION OF THE HEAT LOSSES FROM ELECTRIC CABLES BURIED ACCORDING TO THE NORM STANDARD
DE LIETO VOLLARO, ROBERTO;
2012-01-01
Abstract
The capacity of electrical cables buried in the same cross section depends on the capacity to dispose of heat into the ground around him. This depends on many factors: soil characteristics, moisture, installation mode etc. The CEI 20-21 regarding the uses expressions that sometimes are not very cautious and dimensioning of insufficient capacities for cables. This work has been done a study of the behavior of underground cable based on using a forecasting model that uses the techniques of cfd. This model was validated with a physical model in miniature, made from data collected in situ measurement campaigns carried out in underground conduits in the province of Foggia (Italy) that allowed the choice of the mesh to get more 'correct solution to of the problem. Thus it was possible to evaluate the differences with the CEI and attribute the correction factors that lead to more realistic valuesI documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
