Investigation of the fluid-structure dynamics during transient operation of Francis turbines - Tr-FRANCIS

混流式水轮机瞬态运行期间的流固动力学研究 - Tr-FRANCIS

• 批准号: 507814-2016
• 负责人: Houde, SébastienH
• 金额: $ 16.84万
• 依托单位: Université Laval
• 依托单位国家: 加拿大
• 项目类别: Collaborative Research and Development Grants
• 财政年份: 2022
• 资助国家: 加拿大
• 起止时间: 2022-01-01 至 2023-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=754311
• 关键词: Investigation; fluid; structure; dynamics; during

Hydro-electricity represents 60% of the electricity produced in Canada. In the last 20 years hydro-electricity production has evolved to accommodate market deregulation and the introduction of intermittent energy sources on the power grid. Hydraulic turbines thus saw an increase in the number of start sequences and in the amount of time spent in no-load conditions for spinning reserve. Those changes exacerbated structural problems leading, among other, to fatigue cracks at the trailing edges of the runner blades and consequently to production losses and increased maintenance cost. The Laboratory of Hydraulic Machines (LAMH) form Laval University along with the members of the Consortium on Hydraulic Machines (ANDRITZ Hydro, GE Renewable Energy, VOITH Hydro, EDF and Hydro-Québec) have agreed to undertake the Tr-FRANCIS research project aimed at studying fluid-structure interactions during transient and no-load regimes in Francis turbines. This pre-competitive project, supported also by the InnovÉE grant agency, will provide the R&D departments of the participating industrial partners with knowledge, tools and methodologies to optimize turbine designs or operation in order to increase flexibility without penalizing the machine life. This may in turn ease the integration of new energy sources on the power grid.Through collaboration between researchers in hydrodynamic, fluid-structure interaction and vibration, Tr-FRANCIS main objective is to:"Identify, describe and parametrize, through measurements and simulations, the flow induced excitations influencing the lifetime of medium head Francis turbine runners during start-up sequences and no-load operation."Investigations will focus on a scaled down model turbine representing a 140 MW production unit. Through novel measurements and simulations, Tr-FRANCIS will provide a unique insight into the complex fluid-structure interactions in the most widely installed type of hydro-turbine.

在过去的20年中，水电代表了加拿大产生的电力。时间旋转储备。 Ge Ble Energy，Voith Hydro，EDF和Hydro-Québec）已同意在Francis Turbines的瞬时和无律中研究Tr-Francis研究项目。通过知识，工具和方法的参与伙伴，以优化E设计或操作，以惩罚机器的生命。 Tr-Francis的主要目标是：“通过测量和模拟，识别，描述和参数化，在启动序列和无负载操作期间，中型头部F兰奇斯涡轮运动员的寿命激发流动诱导性。生产单元。以及最广泛安装的水力发生类型的模拟离子。