Browsing NTNU Open by Author "Thapa, Biraj Singh"
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Current research in hydraulic turbines against sediment erosion: International partnership and collaborations
Thapa, Biraj Singh; Thapa, Bhola; Dahlhaug, Ole Gunnar; Lee, Young Ho; Zhongdong, Qian (Peer reviewed; Journal article, 2021)The problem of material erosion in hydraulic machineries has been under the investigation since a century ago. However, the proper solutions to the erosion of hydro turbine due to sediment-laden flows has not been found ... -
Development of a Francis Turbine Test Rig at Kathmandu University
Engøy, Andrea (Master thesis, 2019)Nepal har et stort potensial for vannkraft som ikke er utnyttet. Denne masteroppgaven er en del av det langvarige samarbeidet mellom Kathmandu University (KU) og Norges teknisk-naturvitenskapelige universitet (NTNU) for å ... -
Development of a Francis Turbine Test Rig at Kathmandu University
Grefstad, Morten (Master thesis, 2017)The focus on hydropower development in Nepal has increased as consequence of the growing energy demand in the region. To render possible locally executed performance tests on model turbines, the Turbine Testing Laboratory ... -
Development of a Francis Turbine Test Rig at Kathmandu University
Bådsvik, Julia Kiri Ellinor (Master thesis, 2019)Denne masteroppgaven er en del av prosjektet EnergizeNepal, som har som mål å utvikle og bygge en francisturbin-testrigg for Universitetet i Kathmandu som oppfyller kravene i IEC60193. Nepal har store vannkraftressurser, ... -
Effects of sediment erosion in guide vanes of Francis turbines
Thapa, Biraj Singh (Doctoral theses at NTNU;2016:260, Doctoral thesis, 2016)Erosive wear of turbine components has been a major operational challenge for the runoff-river hydropower plants across the basins of Himalaya in Asia. The hard mineral particles, which are carried by rivers reach the ... -
Erosion in Francis turbines due to geometrical positioning of runner and guide vanes
Acharya, Nirmal (Doctoral theses at NTNU;2022:301, Doctoral thesis, 2022)Hydro-abrasive erosion in turbine components is one of the prominent operational challenges for hydropower plants located across basins of regions such as Himalayas in Asia, the Andes in South America, and Pacific coast. ... -
Study of sediment erosion in guide vanes of Francis turbine
Nora, Lars Petter (Master thesis, 2016)The Himalayas and the Andes mountains are regions with some of the worlds biggest hydropower potential. One of the biggest problems facing the development of these resources are high concentrations of hard minerals in the ... -
Velocity and pressure measurements in guide vane clearance gap of a low specific speed Francis turbine
Thapa, Biraj Singh; Dahlhaug, Ole Gunnar; Thapa, Bhola (Journal article; Peer reviewed, 2016)In Francis turbine, a small clearance gap between the guide vanes and the cover plates is usually required to pivot guide vanes as a part of governing system. Deflection of cover plates and erosion of mating surfaces causes ...