Abstract: A novel blowdown wind tunnel is currently being commissioned at the Politecnico di Milano, Italy, to investigate realgas behavior of organic fluids operating at subsonicsupersonic speed in the proximity of the liquidvapor ...

Abstract: In the frame of a continuous improvement of the performance and accuracy in the experimental testing of turbomachines, the uncertainty analysis on measurements instrumentation and techniques is of paramount importance. For ...

Abstract: Floating offshore wind turbines (FOWTs) experience dynamic conditions due to platform motion, requiring specific control strategies to mitigate loads and promote the wake diffusion improving overall wind farm efficiency. ...

Abstract: The centrifugal turbine architecture is a promising solution for smalltomedium organic Rankine cycle (ORC) power systems. The inherent compactness of the multistage arrangement makes this configuration very attractive for ...

Abstract: A blowdown wind tunnel for realgas applications has been designed, validated by means of dynamic simulation, and then built. The facility is aimed at characterizing an organic vapor stream, representative of the expansion ...

Abstract: Organic rankine cycles (ORC) are renowned to be attractive energy conversion systems for the thermal energy sources in the smalltomedium power range. A critical component in the ORC technology is the turboexpander; the ...

Abstract: This paper presents the results of a wide experimental study on an Htype vertical axis wind turbine (VAWT) carried out at the Politecnico di Milano. The experiments were carried out in a largescale wind tunnel, where wind ...

Abstract: In this paper, the aerodynamics of two vertical axis wind turbines (VAWTs) are discussed, on the basis of a wide set of experiments performed at Politecnico di Milano, Milan, Italy. A H-shaped and a Troposkien Darrieus ...

Abstract: This work deals with the influence of roughness on highpressure steam turbine stages. It is divided in three parts. In the first one, an experimental campaign on a linear cascade is described, in which blade losses are ...

Abstract: The usual ways to measure the aerodynamic forcing function are complex and expensive. The aim of this work is to evaluate the forces acting on the blades using a relatively simpler experimental methodology based on a ...