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Publication

Current Status of Instrumentation for a Fluoride Salt Heat Transport Demonstration Loop

by Roger A Kisner, David E Holcomb
Publication Type
Conference Paper
Journal Name
Transactions of the American Nuclear Society
Publication Date
Volume
N/A
Conference Name
Seventh American Nuclear Society International Topical Meeting on Nuclear Plant Instrumentation, Control and Human-Machine Interface Technologies
Conference Location
Las Vegas, Nevada, United States of America
Conference Sponsor
American Nuclear Society
Conference Date
-

A small forced convection liquid fluoride salt loop is under construction at Oak Ridge National Laboratory (ORNL) to examine the heat transfer behavior of FLiNaK in a heated pebble bed. Loop operation serves several purposes: (1) reestablishing the infrastructure necessary for fluoride salt loop testing, (2) demonstrating a wireless heating technique for simulating pebble type fuel, (3) demonstration of the integration of silicon carbide (SiC) and metallic components into a liquid salt loop, and (4) demonstration of the functionality of distinctive instrumentation required for liquid fluoride salts. Loop operation requires measurement of a broad set of process variables including temperature, flow, pressure, and level. Coolant chemistry measurements (as a corrosion indicator) and component health monitoring are also important for longer-term operation. Two dominating factors in sensor and instrument selection are the high operating temperature of the salt and its chemical environment.