TITLE:
Improving the Energy Performance of a High-Pressure Hydraulic Turbine by Researching the Flow in the Flow Part
AUTHORS:
Konstantin Mironov, Yuliia Oleksenko, Aminjon Gulakhmadov
KEYWORDS:
Francis Turbine, Efficiency, Spiral Case, Runner, Guide Vane, Draft Tube
JOURNAL NAME:
Journal of Power and Energy Engineering,
Vol.10 No.4,
April
24,
2022
ABSTRACT: In this
study, the goal is to increase the efficiency of a high-pressure hydraulic turbine. The goal is achieved by numerical flow
simulation using CFX-TASCflow. This approach reduces costs and time
compared to the experimental approach and allows for improving the turbine productivity and its design. The analysis of energy losses
in the flow part of the turbine Fr500, as well as the analysis of the influence
of the opening of the guide vanes on changes in energy losses. The results showed that the greatest losses occur in the
guide vane 3.02% based on the
two-dimensional model and 2.5% based on the 3D model, which significantly
affects the efficiency. The analysis was carried out using programs for
calculating fluid flow in two-dimensional and three-dimensional formulations. With
the help of the study, the main energy problem is solved—increasing efficiency.