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A novel dual-rotor wind turbine (DRWT) concept with an auxiliary upwind rotor and a bigger downwind rotor was introduced for improved turbine performance. An experimental study was performed in an Atmospheric Boundary Layer (ABL) wind tunnel with scaled turbine models to investigate the aerodynamic performances and wake characteristics of DRWTs in either co-rotating or counter-rotating configuration...
Energy assessment of urban buildings has become an active research field due to a large amount of energy consumed in cities as a result of fast urbanization. Hence, it is necessary to determine relative importance of variables for explaining variations of building energy use. However, two commonly used methods (correlation analysis and standardized coefficient) are only suitable for uncorrelated variables...
One of main characteristics for building energy in urban environment is spatially distributed. Both electricity and gas per dwelling in London have positive spatial autocorrelation, which indicates that neighbourhoods tend to cluster together with similar energy use. More importantly, when applying regression analysis, the residuals from standard linear energy models may also have spatial autocorrelation,...
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