2 documents found, page 1 of 1
Clustering of wind speed time series as a tool for wind farm diagnosis
Martins, A. A.; Vaz, D. C.; Silva, T. A. N.; Cardoso, M.; Carvalho, A.In several industrial fields, environmental and operational data are acquired with numerous purposes, potentially generating a huge quantity of data containing valuable information for management actions. This work proposes a methodology for clustering time series based on the K-medoids algorithm using a convex combination of different time series correlation metrics, the COMB distance. The multidimensional sca...
On the error of calculation of heat gains through walls by methods using consta...
Ruivo, C. R.; Ferreira, P. M.; Vaz, D. C.A transient heat transfer model was developed to numerically predict the thermal behaviour of the external walls of a room under realistic outdoor conditions. The excitation is not simply sinusoidal even though it is considered to have daily periodicity. The numerical model is based on the finite difference method and handles one-dimensional heat conduction through multilayered walls. The boundary condition at ...