IAEA Collection of Basic Principle Simulators for Education


WWERThe International Atomic Energy Agency (IAEA) has established a programme in nuclear reactor simulation computer programs to assist Member States in educating their nuclear professionals. The objective of the programme is to provide insight and understanding in the operational characteristics, reactivity control systems, safety systems, and response to transients and accident situations for a variety of common nuclear power plants. To achieve this, the IAEA arranges for the development and distribution of simulation software, and corresponding training materials, sponsors training courses and workshops, and distributes computer programs and documentation.


Currently the IAEA has Nuclear Power Plant simulation software available for distribution that simulate the behaviour of the following reactor types:

  • 4 Pressurized Water Reactor (PWR) Plant Simulators
    • Conventional two-loop PWR
    • Korean-type PWR
    • Russian-type PWR
    • Advanced Passive PWR
  • 2 Boiling Water Reactor (BWRs) Plant Simulators
    • Advanced BWR
    • Advanced Passive BWR
  • 2 Pressurized Heavy Water Reactor (PHWR) Plant Simulators
    • Conventional PHWR
    • Advanced PHWR

BWRThese desktop simulator codes provide insight and understanding of the designs as well as a clear understanding of the operational characteristics of the various reactor types. The simulators operate on personal computers and are provided for a broad audience of technical and non-technical personnel as an introductory educational tool. The preferred audience, however, are faculty members interested in developing nuclear engineering courses with the support of these very effective hands-on educational tools. The application of the simulator programs is limited to providing general response characteristics of selected types of power reactor systems and they are not intended to be used for plant-specific purposes such as design, safety evaluation, licensing or operator training.

PWR These simulators, including the associated documentation, are distributed at no cost to interested parties in IAEA Member States. Furthermore, the IAEA sponsors training courses and workshops on a regular basis, and would also be willing to support additional training events on this topic at the request of Member States. To request the simulators please fill out this simulator request form. The completed form should be first sent to the competent official authority (Ministry of Foreign Affairs, National Atomic Energy Authority, or to the applicant's Member State Permanent Mission to the IAEA in Vienna, Austria) for their approval. The Permanent Mission will then forward the approved request to Ms Lincy Thevalakara, the International Atomic Energy Agency, P.O. Box 100, Vienna International Centre, A-1400 Vienna, Austria.

Current Limited Distribution Disc is dated May 2014 (#284)

Feedback on the use of these simulators would be appreciated and should be sent to Mr. Chad Painter


Workshops on Basic Principle Simulator for Education

Since 1997, eighteen workshops have been held, in Egypt, Saudi Arabia, the Republic of Korea, Italy, Spain, the USA and in Vienna. The most recent workshop was held November 4-15, 2013 and was sponsored by TECNATOM.

A Joint ICTP-IAEA Training Course on Physics and Technology of Water Cooled Reactors through the Use of PC-based Simulators has recently been approved. The training course will be held in at the International Centre for Theoretical Physics in Trieste, Italy from 16-27 February. A copy of the ICTP announcement and access to the online application form can be found here: Application Form

A recent TM on Technical Meeting on Effective Utilization of Nuclear Power Plant Simulators as Introductory Educational Tools was held in Vienna on May 19-22

IAEA Related Publications


Please contact NENP Technology Development Section - Contact Point if you have any questions