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mendeley.com
article
https://www.mendeley.com/catalogue/a33e4916-7667-32ed-9d2a-93ffad537dd5
# Francis turbine blade design on the basis of port area and loss analysis. In this study, a Francis turbine with specific speed of 130 m-kW was designed on the basis of the port area and loss analysis. The meridional shape of the runner was designed focusing mainly on the combination of the guide vane loss analysis and experience. The runner blade inlet and outlet angles were designed by calculation of Euler's head, while the port area of blade was modified by keeping constant angles of the blade at inlet and outlet. The results show that the effect of the port area of runner blade on the flow exit angle from runner passage is significant. A correct flow exit angle reduces the energy loss at the draft tube, thereby improving the efficiency of the turbine. The best efficiency of 92.6% is achieved by this method, which is also similar to the design conditions by the one dimension loss analysis.
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scribd.com
article
https://www.scribd.com/document/908948388/What-is-the-effect-of-blade-angle-p…
# Francis Turbine Performance Analysis. ## Uploaded by. What is the effect of blade angle position. ## Share this document. ## Footer menu. ## Support. ## Legal. ## Social. ## Get our free apps. Scribd - Download on the App Store. Scribd - Get it on Google Play.
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sciencedirect.com
article
https://www.sciencedirect.com/science/article/pii/S2590174524001594
by MJ Cervantes · 2024 · Cited by 15 — The research presented here is a novel attempt to enhance the existing Francis turbines with a new degree of freedom using protruding rods.
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pubs.aip.org
article
https://pubs.aip.org/aip/adv/article/13/7/075208/2901828/Numerical-study-of-t…
The blade profile of a Francis turbine determines the inlet and outlet velocities and circulation under a constant guide vane opening, which, in
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quora.com
article
https://www.quora.com/How-can-we-improve-the-efficiency-of-a-Francis-turbine
How can we improve the efficiency of a Francis turbine?
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asmedigitalcollection.asme.org
article
https://asmedigitalcollection.asme.org/fluidsengineering/article/142/10/10121…
by I Iliev · 2020 · Cited by 32 — Previous studies suggested variable speed operation (VSO) of Francis turbines as a measure to improve the efficiency at off-design operating conditions.
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blog.adtechnology.com
article
https://blog.adtechnology.com/machine-learning-hydraulic-turbine-francis-runn…
# Machine Learning for Hydraulic Francis Runner Design Optimization. A new methodology uses **3D Inverse Design** technology coupled with **Reactive Response Surface (RRS) Machine Learning** to rapidly optimize Francis hydraulic turbine runners. This approach requires only **10 input parameters** to explore a vast design space and, in just a few hours, discovered optimized designs that showed significant performance gains, including **5-9 percentage points higher efficiency** and an **8-28% increase in shaft power** over the baseline model. In this blog we look at how ADT’s Reactive Response Surface + CAE technology (RRS+CAE) is driving better hydraulic turbine design through Machine Learning. ## • The Francis Runner performance challenge - and the solution • Where to start - Generate a meanline Francis runner design • 3D Inverse Design is the enabling technology for Machine Learning • How to establish a baseline for turbine performance • Optimization of a Francis runner via Machine Learning • RRS gives design choices and performance gains • Final validation of the Machine Learning solution • Conclusions.
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blog.gridpro.com
article
https://blog.gridpro.com/understanding-the-flow-through-francis-turbines
# Understanding the Flow Through Francis Turbines. This is the first article in a 4-Part series on **Hydraulic Turbines:**. There are many types of hydraulic turbines; the most common ones are – Pelton turbines, Francis turbines and Kaplan turbines. Though all three types of turbines are designed to meet the objective of power extraction from water, they differ in their working mechanism and operating conditions. This article is the first in a series of articles on **Hydraulic Turbines**, covering various aspects like the difference between Pelton-Francis-Kaplan turbines, the working mechanism, and flow disturbances in Francis turbines. Turbine types - pelton turbine, Francis turbine, Kaplan turbine. ***Figure 2:** **a.** Pelton turbine. Another difference is that Pelton turbines are suitable for places with water stored at high altitude, which enables to attain high head and high velocity, while Kaplan turbines are better suited for locations with high water flow rate and low head. #### **The Working Mechanism of a Francis Turbine**.