Nuclear – Zenergy Consulting

Engineering, safety and innovation serving nuclear installations

We support nuclear industrial players in their engineering projects, design of special equipment, process optimization and management of demanding industrial environments.

Thanks to solid expertise in mechanical engineering, materials, thermal processes and complex industrial systems, we operate in the different phases of the life cycle of nuclear installations: studies, design, operation, maintenance and modernization.

Our areas of expertise

Technical assistance and independent expertise
Design of special machines and nuclear equipment
Mechanical studies and sizing of equipment
Handling systems and remotely operated equipment
Thermal processes and heat transfers
High performance materials and technical refractories
Reliability and optimization of installations
Analysis of technical risks and feedback

Sectors of intervention

Decommissioning and modernization projects
Nuclear power plants
Fuel cycle facilities
Research centers
Radioactive waste processing and conditioning facilities

Our added value

We bring a multidisciplinary approach combining technical excellence, safety culture, innovation and industrial pragmatism. Our goal is to offer reliable, durable solutions that meet the highest requirements of the nuclear sector.

Our commitment

To contribute to the performance, safety and sustainability of nuclear installations through independent expertise and technical solutions adapted to the challenges of the nuclear industry today and tomorrow.

Industrial successes

⚛️ Extreme Engineering: High Temperature Furnace for the Nuclear Power of the Future

The Challenge: As part of the global strategic project Proryv (Rosatom), aiming to manufacture the first nuclear fuel of the type mixed uranium-plutonium nitride (MUPN), the industry was facing unprecedented technological obstacles. The process required continuous sintering at around 2000°C under highly controlled reactive atmospheres. At this extreme temperature, physicochemical reactions destroyed conventional refractory materials, creating multiple technical gray areas (thermal insulation, high temperature electrical insulation, control of gas flows).

The Impact: Through advanced fluid/thermal simulations (CFD), high temperature corrosion tests in the laboratory and close collaboration with the end customer’s research institutes, I rethought the selection of special refractory materials, optimized the architectures of complex heat insulators.

The Results: An undisputed world first. We designed and delivered the only MUPN continuous sintering furnace in the world, allowing us to reach a historic milestone with the successful production of the first 1,000 new generation fuel rods, paving the way for the closed nuclear cycle of the future.

Study of the water-hammer phenomenon in the primary circuit of a 4th generation reactor using one-dimensional numerical simulation (PIPNET).

Result obtained: Validation of an operational methodology for concrete cases, demonstrated by a simplified case study strictly respecting the confidentiality constraints of the project.

Development and validation of multiphase compressible flow models in the EUROPLEXUS code for the analysis of accident scenarios in the nuclear field.