Current Research in Hydraulic Turbines (CRHT) VIII

Abstract

PrefaceCurrent Research in Hydraulic Turbines (CRHT) is an international symposium dedicated to research activities related to hydraulic turbines. The event has been taking place in Kathmandu University since 2010 and since 2018, the publication of the short-listed papers from the event in IOP Journal of Physics: Conference Series has been provisioned. This year, the topic of the papers/presentations was divided into six thematic areas: i) Modeling and simulation in hydro turbines ii) Simulation and experimental techniques in hydropower iii) Sediment erosion and cavitation in hydraulic turbines iv) Renewable energy, devices, energy and efficiency measurement v) Pumps, FSI in pipe and net metering and vi) Reversible pump turbines and Hill chart of Francis turbine.In this symposium, the technical session was represented by six Universities in three parallel sessions. In total, 24 papers were presented in the symposium, out of which, 10 papers were selected for publication in IOP. The selection was based on the evaluation and thorough review process by respective session chairs and the organizing committee. The event was organized by Turbine Testing Lab of Kathmandu University and supported by International Center for Hydropower (ICH).The papers included in this Journal contain a wide range of research activities conducted in the sector of hydropower and hydraulic turbines. The problems of sediment erosion in the context of Indian Sub-continent have been discussed with the challenges of modeling and simulating the erosion in CFD. Theoretical approach for generating hill charts of Francis turbines using shroud-streamline modeling has been presented. Similarly, the problems of pressure pulsations in Francis turbines, experimental and numerical techniques of measurement and modeling of the power plants have been emphasized. Some papers also include design optimization using CFD for better efficiency and minimum erosion in turbines.