DESIGN AND SIMULATION OF CROSS FLOW TURBINE ON HULUKA RIVER IN ETHIOPIA

Abstract

Micro hydropower is an important source of renewable energy in the world because of its clean and abundant
energy resource to develop. It is promising means of providing cost effective electricity to location with limited or no
availability of grid supplied electricity. In this paper, discuss detail about the cross flow turbine which is considering the
fluid parts of the machine. Also cross flow turbine is designed and simulated using commercial software ANSYS CFX. To
design this machine, the actual parameters of micro hydroelectric plant such as the water flows, types of turbine, head
and other parameters are specified. A horizontal rectangular nozzle is used with this type of turbine to drive a jet of
water along the full length of the runner. The complete design parameters such as runner diameter, runner length, water
jet thickness, blade spacing, and radius of blade curvature, turbine power, turbine speed and number of blades were
determined at maximum turbine efficiency. Also low parameters like pressure and velocity distribution are discussed.