Electromagnetic flowmeter for transient measurements in hydraulic turbines at model scale

用于模型尺度水轮机瞬态测量的电磁流量计

• 批准号: RTI-2023-00377
• 负责人: Houde, Sebastien
• 金额: $ 1.5万
• 依托单位: Université Laval
• 依托单位国家: 加拿大
• 项目类别: Research Tools and Instruments
• 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=754452
• 关键词: Electromagnetic; flowmeter; transient; measurements; hydraulic

This proposal aims to update the flowmeter of our hydraulic turbine test stand to perform time-resolved discharge measurements in hydraulic turbine models during transient operations. The Hydraulic Machines Laboratory (LAMH) test stand in Université Laval is currently the only hydraulic turbine test stand operating in Canada and respecting the International Electrotechnical Commission standards. However, our current flowmeter has an acquisition frequency of about 0.5 Hz, which is unsuited for evaluating the discharge in transient conditions, such as start-up and load rejections, occurring over 1 to 10 seconds. We thus propose to replace it with an Endress+Hauser Promag 55S4H, DN400 electromagnetic flowmeter. This flowmeter is a high-precision drop-in replacement with an acquisition frequency of up to 100 Hz, tailored to our needs. The LAMH research program aims at increasing the operational flexibility and service life of hydraulic turbines to, among other things, facilitate the integration of intermittent renewable energy on electrical grids. This new flowmeter will enable the LAMH to complete research projects investigating fluid-structure interactions in transient regimes such as start-up and load rejections. It will provide the necessary data to complete the Tr-FRANCIS project in the short term. Tr-FRANCIS is a six-year project supported by NSERC (CRD grant), the InnovÉE grant agency, five industrial partners and three energy suppliers. It involves five professors, three research associates, twenty graduate students (two postdocs, four Ph.D., fourteen M.Sc.) and many undergraduate interns. At the core of Tr-FRANCIS are velocity, pressure, strain and vibration measurements performed on a turbine model hydrodynamically and structurally homologous to a turbine operated by Hydro-Québec. This new flowmeter will add important information to identify correlations between flow and structural phenomena identified at different locations in the turbine during start-ups. It will also provide data for numerical simulations and the development of Reduced Order Models.

本提案旨在更新我们的水力涡轮机试验台的流量计，以便在瞬态操作期间对水力涡轮机模型进行时间分辨流量测量。拉瓦尔大学的液压机实验室（LAMH）试验台是目前加拿大唯一一个符合国际电工委员会标准的液压涡轮机试验台。然而，我们目前的流量计具有约0.5Hz的采集频率，这不适合于在瞬态条件下评估放电，例如在1至10秒内发生的启动和负载拒绝。因此，我们建议用Endress+豪瑟Promag 55 S4 H，DN 400电磁流量计代替它。该流量计是一种高精度的直接替代产品，采集频率高达100 Hz，可根据我们的需求量身定制。LAMH研究计划旨在提高水轮机的操作灵活性和使用寿命，以促进电网上间歇性可再生能源的整合。这种新的流量计将使LAMH能够完成研究项目，调查在启动和负载拒绝等瞬态状态下的流体-结构相互作用。它将为在短期内完成Tr-FRANCIS项目提供必要的数据。Tr-FRANCIS是一个为期六年的项目，由NSERC（CRD赠款），InnovÉE赠款机构，五个工业合作伙伴和三个能源供应商支持。它涉及五名教授，三名研究助理，二十名研究生（两名博士后，四名博士，14个硕士学位）还有很多本科实习生Tr-FRANCIS的核心是在涡轮机模型上进行速度、压力、应变和振动测量，该模型在流体动力学和结构上与Hydro-Québec运营的涡轮机相似。这种新的流量计将增加重要的信息，以确定启动期间在涡轮机中不同位置确定的流量和结构现象之间的相关性。它还将为数值模拟和降阶模型的开发提供数据。