TU Delft PhD Position 2026 | Experimental Physics & Thermal-Hydraulics in Advanced Nuclear Reactor Technology

TU Delft PhD Position 2026 | Experimental Physics & Thermal-Hydraulics in Advanced Nuclear Reactor Technology

TU Delft (Delft University of Technology), Netherlands invites applications for a PhD position in Experimental Physics and Thermal-Hydraulics in Advanced Nuclear Reactor Technology. The position focuses on experimental research supporting the development of next-generation micro nuclear reactors for land-based and maritime applications.

Position Details

Organization: TU Delft
Position: PhD Candidate
Research Area: Experimental Physics, Thermal-Hydraulics & Advanced Nuclear Reactor Technology
Project Focus: Micro High-Temperature Reactor (HTR) / Pebble-Bed Reactor Systems
Location: Delft, Netherlands

About the Project

The PhD candidate will join a consortium led by Allseas that is developing a micro High-Temperature Reactor (HTR) with a pebble-bed design for land-based and maritime use. The research will generate experimental datasets to support reactor safety assessment and model validation.

The project will contribute directly to the safe deployment of advanced microreactor technologies through experimental investigation of heat transfer, passive cooling, and reactor behaviour under challenging operating conditions.

Key Research Responsibilities

The selected PhD candidate will:

• Design, build, and operate non-nuclear thermal-hydraulic experimental facilities.

• Investigate passive heat removal in pebble-bed reactor concepts.

• Study reactor behaviour during water ingress scenarios.

• Conduct experiments involving heated pebbles and advanced measurement systems.

• Analyse heat transfer, natural convection, boiling phenomena, and hotspot formation.

• Simulate maritime operating conditions, including vessel inclinations up to 90 degrees.

• Study pebble movement, collision dynamics, and local density variation under non-stationary conditions.

• Generate validated datasets for reactor modelling and safety analysis.

• Collaborate with researchers working on high-fidelity reactor modelling.

Research Themes

The project covers:

• Experimental Thermal-Hydraulics

• Advanced Nuclear Reactor Technology

• Pebble-Bed Reactor Systems

• Passive Heat Removal

• Reactor Safety Assessment

• Maritime Nuclear Applications

• Heat Transfer and Natural Convection

• Experimental Dataset Development

• Reactor Model Validation

Candidate Profile

Applicants should have a strong interest in:

• Experimental physics

• Thermal-hydraulics

• Nuclear engineering

• Reactor safety

• Fluid mechanics and heat transfer

• Experimental design and laboratory-based research

• Advanced energy systems

Why Join TU Delft?

• Work on a pioneering project in advanced microreactor technology.

• Access state-of-the-art laboratory facilities.

• Join TU Delft’s nuclear engineering research community.

• Collaborate with international academic and industrial partners.

• Develop expertise in thermal-hydraulics, experimental methods, reactor safety, and nuclear energy technologies.

• Contribute to next-generation clean energy solutions for land and maritime applications.

How to Apply

Interested candidates should submit their application through the official TU Delft Careers Portal with all required documents mentioned in the official advertisement.

Applicants are advised to review the official notification carefully for complete eligibility criteria, application requirements, and submission guidelines before applying.

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