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20 Years Later, the 21st International Topical Meeting on Nuclear Reactor Thermal Hydraulics to Be Held in Busan!

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Busan Metropolitan City (Mayor Park Heong-joon) announced that the 21st International Topical Meeting on Nuclear Reactor Thermal Hydraulics (NURETH-21) will be held at BEXCO over six days from August 31 to September 5.

Hosted by the Korean Nuclear Society (President Lee Ki-bok) and co-organized with the International Atomic Energy Agency (IAEA), this conference returns to Busan for the first time in 20 years since it was held in Seoul in 2005 (the 11th meeting).

To secure the hosting rights, the city collaborated with the Korean Nuclear Society, Busan Tourism Organization, and BEXCO, sending invitation letters to the American Nuclear Society organizing committee and providing extensive support, which led to the final confirmation of Busan as the host city in 2023.

This conference will bring together over 1,000 experts in nuclear safety and thermal hydraulics from 37 countries (approximately 250 from Korea and 750 from abroad). Covering 84 topics across nine fields—including fundamental thermal hydraulics, AI-based thermal hydraulics and Small Modular Reactors (SMRs), and nuclear safety—more than 900 papers will be presented.

The academic program includes student seminars, six keynote lectures, nine special invited lectures, and technical tours of nuclear-related facilities and companies. In addition, cultural events will be offered to participants, including experiences of Busan’s nightscape and culinary culture.

Busan Metropolitan City will also operate an interactive exhibition hall on the theme of “Nuclear Safety and Radiation Emergency Response in Busan,” showcasing the city’s radiation emergency response capabilities and safety management system.

The exhibition will feature displays and hands-on programs highlighting topics such as radiation emergency response, resident protection measures by emergency stage, environmental radiation detection, and radiation disaster response training, to deepen participants’ understanding.

In addition, commemorative photo opportunities and the distribution of souvenirs will provide memorable experiences for domestic and international participants visiting Busan.

Kim Ki-hwan, Director General of the Citizens’ Safety Office, stated, “The fact that this globally prestigious conference is being held in Busan will serve as an opportunity to elevate the city’s status in the fields of nuclear safety and thermal hydraulics. We expect that the outcomes of this meeting will not only contribute to the advancement of the nuclear power industry but also provide tangible benefits in responding to the climate crisis and transitioning the energy industry.”