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Supercritical Natural Circulation Loop: A Technology for Future Reactor
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Author(s): Tanuj Srivastava (Indian Institute of Technology, Guwahati, India), Pranab Sutradhar (Indian Institute of Technology, Guwahati, India), Milan Krishna Singha Sarkar (Indian Institute of Technology, Guwahati, India)and Dipankar Narayan Basu (Indian Institute of Technology, Guwahati, India)
Copyright: 2021
Pages: 32
Source title:
Handbook of Research on Advancements in Supercritical Fluids Applications for Sustainable Energy Systems
Source Author(s)/Editor(s): Lin Chen (Institute of Engineering Thermophysics, Chinese Academy of Sciences, China & University of Chinese Academy of Sciences, China)
DOI: 10.4018/978-1-7998-5796-9.ch009
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Abstract
Supercritical natural circulation loop is a compelling technology for cooling of modern nuclear reactors, which promises enhanced thermal-hydraulic performance in a simple design. Being a new concept, related knowledge base is relatively thin and involves several conflicting theories and controversies. The chapter summarizes the observation till date, starting from the very fundamentals. The phenomenon of natural circulation under steady state condition and suitability of supercritical medium as working fluid are discussed in detail. Different methods of analyses, including analytical, simple 1-d numerical, and multidimensional computational codes, as well as experimental, are elucidated. A comprehensive discussion is presented about the effect of various geometric and operating parameters on the system behavior, from both thermal-hydraulic and stability point of view. Finally, a few recommendations are included about the operation of such loops and future direction of research.
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