Performance investigation of the S-rotors

Bhayo, B.A. and Al-Kayiem, H.H. and Yahaya, N.Z. (2015) Performance investigation of the S-rotors. In: UNSPECIFIED.

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Abstract

This paper presents and discusses results from an experimental investigation of three models of wind S-rotors. Models 1 is modified from conventional Savonius rotor with a single stage and zero offsets zero overlaps; model 2 is three blade single stage wind rotor; and model 3 is double stage conventional Savonius rotor. The three models were designed, fabricated and characterized in terms of their coefficient of performance and dynamic torque coefficient. A special open wind simulator was designed for the test. The optimum parameters for the models were based on previous studies. The results showed that the model 1, model 2 and model 3 has the maximum power coefficient of 0.26, 0.17, and 0.21 at the correspondence tip speed ratio (TSR) of 0.42, 0.39 and 0.46, respectively. Model 1 is further optimized in terms of the aspect ratio resulting in improved power coefficient by 24. The maximum dynamic torque coefficient of model 1, model 2 and model 3 was found as 0.81, 0.56 and 0.67 at the correspondence minimum TSR of 0.28, 0.21 and 0.17, respectively. It was noted that the all three models have high torque coefficient because the models were tested at higher applied torque on the rotors.

Item Type: Conference or Workshop Item (UNSPECIFIED)
Impact Factor: cited By 4
Uncontrolled Keywords: Dynamics; Engineering research; Torque, Coefficient of Performance; Dynamic torques; Experimental investigations; Maximum power; Optimum parameters; Power coefficients; Savonius rotor; Tip speed ratio, Aspect ratio
Depositing User: Ms Sharifah Fahimah Saiyed Yeop
Date Deposited: 25 Mar 2022 07:15
Last Modified: 25 Mar 2022 07:15
URI: http://scholars.utp.edu.my/id/eprint/30703

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