NUCLEAR ENERGY
Empowering the Future of Clean Energy: Revolutionizing Thermal Management for Next-Generation Nuclear Reactors
Solving the Thermal Management Challenges of Next-Generation Nuclear Reactors
The world needs clean, sustainable energy, and nuclear power offers a key solution to meet rising electricity demands. Currently, nuclear energy supplies approximately 9% of the world’s electricity and plays a vital role in achieving net-zero emissions. Next-generation reactors, such as Small Modular Reactors (SMRs) and micro-reactors, represent a significant advancement in nuclear technology, promising safer, more flexible, and efficient energy production. ACT is driving this innovation forward with cutting-edge high-temperature heat pipes for nuclear energy, designed to meet the unique demands of these advanced reactor designs.
Thermal Management Challenges of SMRs and Micro-Reactors
SMRs and micro-reactors offer enhanced safety, faster construction, and flexible deployment, making them ideal for remote power generation, microgrids, and industrial process heat applications.
However, their compact designs and high operating temperatures create unique thermal management challenges. Traditional large-scale nuclear plants use abundant water for cooling. In contrast, these smaller reactors often operate in water-scarce or remote environments. This necessitates cooling technologies that are:
- Highly efficient in extreme conditions
- Reliable without external power or complex systems
- Capable of maintaining stable operation under varying thermal loads

ACT’s High-Temperature Heat Pipe Technology for SMRs and Micro-Reactors
ACT’s high-temperature heat pipes for nuclear reactors provide an innovative thermal management solution for advanced systems. These devices efficiently absorb heat generated by nuclear fission and transfer it to a remote heat exchanger through a two-phase process.
Why Choose ACT’s Heat Pipes?
Several key benefits differentiate our high temperature heat pipes for nuclear reactors, including:
- Passive Cooling Technology: Heat is transferred automatically, without pumps or external power. This ensures reliability and simplicity.
- Enhanced Safety: Passive operation reduces the risk of mechanical failure, improving reactor safety.
- Compact and Scalable: They systems are customizable for power loads from 1 to 100kW. This makes them perfect for SMRs and micro-reactors in extreme environments.
- High-Temperature Capability: Our alkali metal heat pipes operate efficiently across a wide temperature range, from 400°C to beyond 1100°C. This provides optimal thermal transfer for high-temperature applications, ideal for next-generation reactors.
This technology enables heat conversion into electricity or integration into steam loops for industrial processes, making it ideal for applications where traditional cooling methods are inadequate. With a proven track record in both space-based and terrestrial nuclear applications, ACT’s heat pipes demonstrate unparalleled reliability and efficiency.
Passive Thermal Solutions | High Temperature Heat Pipes
ACT’s high-temperature alkali metal heat pipes provide passive, efficient, and reliable cooling for SMRs and micro-reactors, operating across a wide temperature range (400°C to beyond 1100°C) to manage extreme heat without pumps or external power.
Empowering the Future of Clean Energy
ACT’s high-temperature heat pipes are a game-changing solution for next-generation nuclear reactors, providing passive, efficient, and reliable thermal management to meet the unique challenges of SMRs and micro-reactors. With decades of experience and a proven track record, we deliver field-tested, customizable technology that ensures safe and consistent operation, even in the most demanding conditions.
By solving the thermal management challenges, ACT helps enable a transition to cleaner, more sustainable energy.
Don’t let thermal challenges limit your reactor’s potential. Contact us today to learn how ACT’s cutting-edge heat pipes can improve your systems and advance your clean energy goals.
Nuclear Energy Resources
Explore our comprehensive collection of resources dedicated to advancing nuclear energy. Here, you’ll find insightful content focused on thermal management solutions for nuclear reactors. Whether you’re seeking detailed technical papers, the latest industry news, or expert insights, our resources are designed to keep you informed and help you maximize the performance of your nuclear energy systems.

Navigating Thermal Management in Energy
This comprehensive guide offers critical insights and actionable strategies to help energy producers and industry professionals address the complexities of thermal management.
- Mitigating waste heat in power generation: We explore effective strategies to minimize heat loss and impove overall system efficiency.
- Enhancing energy conversion efficiency: Discover innovative solutions to optimize energy conversion processes and minimize thermal losses.
- Optimizing storage systems: Learn how to effectively manage thermal challenges in energy storage system, such as batteries, to maximize performance and lifespan.
This guide is tailored to tackle the most pressing thermal challenges facing the energy industry today.
