Title: Optimisation of blade profiles of cross flow turbine

Authors: Assad Zaffar; Bilal Ibrahim; M. Awais Sarwar; Javed Ahmed Chattha; Muhammad Asif

Addresses: Faculty of Mechanical Engineering, GIK Institute of Engineering Sciences and Technology, Topi 23640, District Swabi, K.P., Pakistan ' Faculty of Mechanical Engineering, GIK Institute of Engineering Sciences and Technology, Topi 23640, District Swabi, K.P., Pakistan ' Faculty of Mechanical Engineering, GIK Institute of Engineering Sciences and Technology, Topi 23640, District Swabi, K.P., Pakistan ' Faculty of Mechanical Engineering, GIK Institute of Engineering Sciences and Technology, Topi 23640, District Swabi, K.P., Pakistan ' Faculty of Mechanical Engineering, GIK Institute of Engineering Sciences and Technology, Topi 23640, District Swabi, K.P., Pakistan

Abstract: The areas where the supply of grid power is very difficult cross flow turbines (CFT) are used for low head power production. Results are presented for optimum profile of the leading edges of blade. Four different profiles (flat tip blade profile, round tip blade profile, pointed tip blade profile and oval tip blade profile) are modelled and simulated with ANSYS CFX and then compared their performance in terms of their efficiencies. The complete turbine is analysed for the determination of the leading edge of the blade in the first stage and the trailing edge in the second stage. The design and simulation conditions are based on the installed CFT at Chitral City of Pakistan. The results show that efficiency of the round tip blade profile is better than the other three profiles of the blade.

Keywords: blade profiles; cross flow turbine; CFT; turbine efficiency; renewable energy; hydro-power.

DOI: 10.1504/IJPEC.2018.10011716

International Journal of Power and Energy Conversion, 2018 Vol.9 No.4, pp.311 - 326

Received: 13 Jun 2016
Accepted: 02 Oct 2016

Published online: 28 Sep 2018 *

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