Nuclear Process Heat

Nuclear process heat utilises the thermal energy produced by nuclear reactors to supply heat for various industrial processes. This can be achieved through different reactor designs, including high-temperature gas-cooled reactors (HTGRs) and molten salt reactors (MSRs), which can provide heat at temperatures suitable for industrial applications. The heat can be used for various purposes, such as hydrogen production via thermochemical cycles or steam electrolysis, desalination for fresh water production, and chemical manufacturing, including ammonia and synthetic fuels. Nuclear process heat offers several advantages, including low greenhouse gas emissions, high energy density, and reliable heat supply. It can contribute to decarbonising industrial sectors that are difficult to electrify.

Steam Electrolysis: Uses nuclear heat to produce hydrogen from steam.
Thermochemical Cycles: Use nuclear heat to drive chemical reactions for hydrogen production.

Hydrogen Production: Using nuclear heat for large-scale hydrogen production.
Desalination: Integrating nuclear heat with desalination plants for fresh water production.
Chemical Manufacturing: Using nuclear heat for ammonia and synthetic fuel production.
Industrial Decarbonisation: Replacing fossil fuels with nuclear heat in high-temperature industrial processes.

Radiological risks associated with nuclear process heat are similar to those associated with nuclear power generation. These risks include the potential for radiation exposure during normal operation and the risk of accidents. Nuclear reactors are designed with multiple layers of safety systems to minimise these risks. Stringent safety regulations and international safeguards are implemented to ensure safe operation.

Deployment risks include the high capital costs of nuclear reactors and industrial facilities, the need for specialised expertise, and the potential for public concerns regarding nuclear technology. Integrating nuclear heat with existing industrial processes and ensuring the availability of trained personnel are crucial for successful deployment.

Proliferation risks are associated with the potential for diversion of nuclear materials for weapons production. Nuclear reactors and fuel cycle facilities are subject to strict international safeguards and regulatory controls to prevent proliferation. The risk of proliferation is mitigated through international cooperation and monitoring.