DISCLAIMER: This article is being kept online for historical purposes. Though accurate at last review, it is no longer being updated. The page may contain broken links or outdated information.
Natural circulation in nuclear systems
Aksan, Nusret Paul Scherrer Institute, Villigen, Switzerland.
- Passive safety systems
- Example systems
- Thermal-hydraulic phenomena
- Additional Reading
Natural circulation is a process by which fluid motion is driven by a density gradient and no external source of energy is required. In general, a heat source, a heat sink, and the pipes connecting them form the essential hardware of a natural circulation system. The pipes are connected to the source (heater) and sink (cooler) in such a way that they form a continuous circulation path (Fig. 1). When the flow path is filled with working fluid, circulation can set in automatically following the activation of the heat source under the influence of a body field such as gravity. With both the source and sink maintained at constant conditions, a steady condition is expected to be achieved that can continue indefinitely, if the integrity of the closed loop is maintained.
The content above is only an excerpt.
for your institution. Subscribe
To learn more about subscribing to AccessScience, or to request a no-risk trial of this award-winning scientific reference for your institution, fill in your information and a member of our Sales Team will contact you as soon as possible.
to your librarian. Recommend
Let your librarian know about the award-winning gateway to the most trustworthy and accurate scientific information.
AccessScience provides the most accurate and trustworthy scientific information available.
Recognized as an award-winning gateway to scientific knowledge, AccessScience is an amazing online resource that contains high-quality reference material written specifically for students. Contributors include more than 10,000 highly qualified scientists and 46 Nobel Prize winners.
MORE THAN 8700 articles covering all major scientific disciplines and encompassing the McGraw-Hill Encyclopedia of Science & Technology and McGraw-Hill Yearbook of Science & Technology
115,000-PLUS definitions from the McGraw-Hill Dictionary of Scientific and Technical Terms
3000 biographies of notable scientific figures
MORE THAN 19,000 downloadable images and animations illustrating key topics
ENGAGING VIDEOS highlighting the life and work of award-winning scientists
SUGGESTIONS FOR FURTHER STUDY and additional readings to guide students to deeper understanding and research
LINKS TO CITABLE LITERATURE help students expand their knowledge using primary sources of information