Experimental Study of Sediment Erosion in Francis Turbine in LaboratoryConditions”

Objectives

  • Study the effects on performance of Francis turbine due to sediments in flow.
  • Study the changes in efficiency of turbine with progression of erosion.
  • Propose a simplified erosion model applicable forFrancis turbines.

Ravi Poudel
Masters Candidate
mravimecher@gmail.com
Batch: 2021

Expected Outcomes
There are four major expected outcomes of the research. The first one is performance curves of Francis runner in sediment laden flow. This part of the study was conducted at Wuhan University (WHU) and
results showed that the maximum efficiency in case of sediment water was reduced in sediment laden flow. The second one is the location and severity of erosion in a Francis runner obtained through erosion testing of painted runner and guide vanes. This study was carried out at Turbine Testing Lab and the results showed the patterns of erosion affected area in runner and guide vane. The third one is the efficiency curves for the eroded runner after 30 and 60 hours of erosion. The fourth one is a relationship between the weight lost due to erosion and the hours of operation.

Supervisors from host and Partner Universities
Prof. Dr. Bhola Thapa
Assistant Prof. Dr. Sailesh Chitrakar
Prof. Dr. Zhongdong Qian
Associate Prof. Dr. Zheiwei Guo

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