“E.F. Transient Analysis”

App for Simulation of transient conditions

by E. Franz

E.F. Transient Analysis is a professional software solution for pressure surge calculation and transient flow simulation in hydropower plants and pipeline systems. The software enables precise analysis of dynamic processes in penstocks, turbines, and pump systems, supporting the safe and economical design of complex hydraulic installations.

Benefit from our expertise

We offer professional analysis and calculation of pressure surges and transient flow processes as a service. For our hydraulic simulations, we rely on E.F. Transient Analysis — a software that has proven its reliability in practical use for decades.

On request, you can also purchase E.F. Transient Analysis directly from us and use it for your own applications.

Safe operation of hydroelectric power plants by transient analysis

The analysis of unsteady flow conditions in penstocks and the associated plant systems is a key component of the design of hydro power plants. Even in the early stages of a project, it provides the basis for assessing technical feasibility.

Pressure surges resulting from changes in load (water hammer) determine key design parameters. These include, amongst others:

the required wall thickness of steel pressure pipes
the dynamic requirements for turbines and generators (e.g. the moment of inertia)
and the design of protective and control devices

These boundary conditions have a direct impact on investment costs and operational reliability.

The E.F. Transient Analysis software for water hammer analysis enables such scenarios to be modelled and evaluated efficiently.

E.F. Transient Analysis – Functions

E.F. Transient Analysis covers every conceivable requirement and includes the following functions:

Modular structure
Boundary conditions for all kind of valves, Francis turbines, basins joining and distribution pipes etc.
Surge tanks, also with consideration of throttles with asymmetrical behaviour, inertia, head losses and any cross-sectional profile
Graphical input of pipe data
Automatic steady state condition calculation
Complicate simulation models

The software has proven itself in simulation technology for more than 35 years. Continuous development ensures that it remains technologically up to date. Validation through numerous commissioning tests confirms the high reliability of the calculated results in real plant operation.