Diagnosis of transient effects

HYDRO Exploitation SA offers an advanced diagnostics service to identify, analyze, and manage these complex phenomena, ensuring the safe and optimal operation of hydropower infrastructure.

Methodology

1. Problem definition

Leveraging its hydraulic expertise, HYDRO Exploitation SA works closely with facility owners to define load cases likely to generate critical transient effects—such as pump start-up, rapid valve closure, or emergency turbine shutdown.

2. Characterization of physical phenomena

Key physical parameters are identified through numerical simulations using SIMSEN software and/or direct on-site measurements. A high-performance acquisition system enables simultaneous, synchronized measurements across multiple channels—up to 100 kHz—to analyze pressures, flow rates, velocities, mechanical stresses, temperatures, and other essential variables.

3. Data analysis and recommendations

In-depth analysis of the collected data leads to tailored recommendations aimed at improving safety, optimizing operations, and minimizing risks and disturbances.

Specific skills

• In-depth knowledge of complex transient hydraulic phenomena
• Proficiency in high-frequency, multi-channel synchronized measurements
• Advanced data analysis for targeted operational recommendations
• Extensive experience in hydroelectric facility management, offering a comprehensive and pragmatic perspective

Client benefits

The owner of the hydroelectric facility benefits from:

• Enhanced safety through proactive identification and control of risks related to transient effects
• Practical recommendations to improve efficiency and reliability, while reducing maintenance and downtime costs
• Tailored solutions based on a personalized approach and advanced technological tools
• A comprehensive service delivered by experienced specialists who are among the few experts in Switzerland in this field