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AREVA NP operates a worldwide unique Thermal-hydraulic Platform for testing and qualification of systems and components. It is accredited as test and inspection body according to ISO 17025 and ISO 17020.

The focus of tests, qualifications, training and analyses is on:

  • Heat transfer performance and critical heat flux (CHF) at water, steam and two-phase flow conditions
  • Thermo-hydraulic high-pressure, high-temperature, integral or transient boiling water reactor (BWR) and pressurized water reactor (PWR) tests
  • Qualification of pumps and valves according to international codes (ASME NQA1, RCC, ISO 17025…)
  • Fluid-dynamic scaled and unscaled flow, pressure, heat and fluid-induced vibration tests
  • On-site measurements for safety, pilot, globe, check and solenoid valves and actuators
  • Thermo-hydraulic PWR and BWR integral systems testing, qualification and training
  • Mechanical equipment as well as instrumentation and control (I&C) for loss-of-coolant accidents (LOCA), severe accidents and seismic qualification
  • Thermo-hydraulic data base compilation, modelling, computational fluid dynamics (CFD) and software development
  • Thermo-hydraulic mechanical test loop design, construction and data acquisition
  • Power and process industries fluid dynamics as well as thermodynamic testing and qualification.

At its sites in Erlangen and Karlstein, AREVA NP operates unique large-scale testing facilities.
The scientists, engineers, technicians and mechanics there investigate questions on behalf of customers from power plant engineering and industry:

  • Thermal and fluid engineering
  • Qualification and service
  • Thermo-hydraulic behavior of PWR plants under accident conditions (primary system testing facility, PKL).

Interested in Thermal-hydraulic and Component Testing?

Conversion between international system of units (SI units) and British or US system of units

Press release

Nuclear Safety: AREVA NP to support International OECD Research Program


AREVA’s Thermo-hydraulic Platform qualified as test and inspection body


Thermo-hydraulic Platform


Components qualification for the safe operation of nuclear power plants


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