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Title: Parametric study on maximum transportable distance and cost for thermal energy transportation using various coolants

The operation temperature of advanced nuclear reactors is generally higher than commercial light water reactors and thermal energy from advanced nuclear reactor can be used for various purposes such as district heating, desalination, hydrogen production and other process heat applications, etc. The process heat industry/facilities will be located outside the nuclear island due to safety measures. This thermal energy from the reactor has to be transported a fair distance. In this study, analytical analysis was conducted to identify the maximum distance that thermal energy could be transported using various coolants such as molten-salts, helium and water by varying the pipe diameter and mass flow rate. The cost required to transport each coolant was also analyzed. The coolants analyzed are molten salts (such as: KClMgCl2, LiF-NaF-KF (FLiNaK) and KF-ZrF4), helium and water. Fluoride salts are superior because of better heat transport characteristics but chloride salts are most economical for higher temperature transportation purposes. For lower temperature water is a possible alternative when compared with He, because low pressure He requires higher pumping power which makes the process very inefficient and economically not viable for both low and high temperature application.
Publication Date:
OSTI Identifier:
Report Number(s):
Journal ID: ISSN 0149-1970
DOE Contract Number:
Resource Type:
Journal Article
Resource Relation:
Journal Name: Progress in Nuclear Energy; Journal Volume: 74
Research Org:
Idaho National Laboratory (INL)
Sponsoring Org:
Country of Publication:
United States
42 ENGINEERING; advanced nuclear reactor; cost estimation; helium; maximum transportable distance; molten-salts; thermal energy transportation; water