CFD based design of a 4.3MW Francis turbine for improved performance at design and off-design conditions
MetadataShow full item record
Hydraulic turbines are designed for the available head and flow rate of the hydroelectric power plant. Design point usually gives the best efficiency. However, when the turbine is used at off-design conditions where the flow rate and head change mostly because of seasonal fluctuations, efficiency significantly reduces. Therefore, the objective of hydraulic turbine design is not only satisfying the power requirements and maximum efficiency at the design point, but also improved characteristics at off-design conditions. In this work, a 4.3 MW Francis turbine is designed with the help of Computational fluid dynamics. All turbine components are designed separately, and then full turbine analyses are performed to confirm the design. Once an efficient design is obtained for the design head and flow rate, CFD simulations for off-design conditions are performed to confirm the high efficiency of the turbine at these flow rate-head combinations. The efficiency of the designed turbine is in the range of 90 to 92 % for a wide range of head and flow rates.
Showing items related by title, author, creator and subject.
The Effect Of The Graphic Design Education Based On The Visual Culture Theory On Students’ Poster Designs Bölükoğlu, Hülya İz; Bakar Fındıkçı, Melike (2018-08)The aim of this study is to enable students obtain information about visual culture, to increase their skills in design using the acquired information and to evaluate images critically. The purpose of the study is to support ...
Evaluation of various multi-cell design concepts for crashworthiness design of thin-walled aluminum tubes Acar, Erdem; Altın, Murat; Güler, Mehmet Ali (Elsevier Ltd., 2019)In this paper, we evaluate various multi-cell design concepts to optimize the crash performances of thin-walled aluminum tubes. The crash performances of the tubes are evaluated by means of two metrics: the crush force ...
Successive and Constructive Design Education as Source of Sustainable Creativity: Gap between Preschool and Undergraduate Design Education Yalçın, Meryem; Bozdayı, Ayşe Müge (Academic Star Publishing Company, 2018)In a society characterized by uncertainty and rapid change, the ability of think creatively is becoming the key of success and satisfaction, both professionally and personally (Florida, 2002). For today’s student, nothing ...