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Abstract
Water has a lot of potential to produce electricity with much constant voltage value. Hydro-turbines are usually used to operate at variable load due to different climate nature over the whole annum. Loadings are the reasons of vibrations which result in failures. In Francis Turbines loading are due to the fluid pressure and centrifugal force of runner. Problems failure occurs in different stages like: (1) changes in microstructure; (2) microscopic cracks formation; (3) microscopic flaws growth (dominant cracks); (4) dominant macro-crack propagate stably; (5) instability of structure/complete fracture.
In this thesis we are going to design the existing Francis turbine and optimize the design where the stress and the deflections are high for the existing design and even the material optimization is being done to get the better outputs. Structural and the modal analysis are used to get the outputs.