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An Investigation of a Mathematical Model for the Internal Velocity Profile of Conical Diffusers Applied to DAWTs Anais da ABC (AABC)
BARBOSA,DISTERFANO L.M.; VAZ,JERSON R.P.; FIGUEIREDO,SÁVIO W.O.; SILVA,MARCELO DE OLIVEIRA E; LINS,ERB F.; MESQUITA,ANDRÉ L.A..
The Diffuser Augmented Wind Turbines (DAWTs) have been widely studied, since the diffusers improve the power coefficient of the wind turbine, particularly of small systems. The diffuser is a device which has the function of causing an increase on the flow velocity through the wind rotor plane due to pressure drop downstream, therefore resulting in an increase of the rotor power coefficient. This technology aids the turbine to exceed the Betz limit, which states that the maximum kinetic energy extracted from the flow is 59.26%. Thus, the present study proposes a mathematical model describing the behavior of the internal velocity for three conical diffusers, taking into account the characteristics of flow around them. The proposed model is based on the...
Tipo: Info:eu-repo/semantics/article Palavras-chave: DAWTs; Diffusers; Wind energy; Biot-Savart's law.
Ano: 2015 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652015000201133
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