Liquid lead bismuth alloy and SCO2 loop coupling heat exchange characteristic research experiment system

Abstract

The invention provides a liquid lead bismuth alloy and SCO2 loop coupling heat exchange characteristic research experiment system. The system comprises a liquid lead bismuth alloy experiment loop, a supercritical carbon dioxide experiment loop, a printed circuit board heat exchanger and a 4PLC control cabinet. The liquid lead bismuth alloy experimental loop and the supercritical carbon dioxide experimental loop are coupled together through a printed circuit board heat exchanger, and the PLC control cabinet 4 controls the flow of the two loop systems and the power of a heater to obtain a large amount of experimental data; the system can be used for liquid lead bismuth alloy heat exchange mechanism experimental study, can also be used for efficient and compact heat exchanger research and development experimental study, and can be used for studying coupling heat exchange characteristics of two working media of liquid lead bismuth alloy and supercritical carbon dioxide in a printed circuit board heat exchanger, a printed circuit board heat exchanger heat exchange calculation method suitable for the two working media is mastered; meanwhile, the experiment device can also be used for researching the flowing heat exchange characteristic in the liquid lead bismuth alloy single tube or single channel.

Description

technical field [0001] The invention relates to an experimental system for researching coupled heat transfer characteristics, in particular to a liquid lead-bismuth alloy and SCO 2 Experimental system for loop coupling heat transfer characteristics research. Background technique [0002] In the fourth-generation nuclear reactors, the lead-alloy cooled fast reactor (LFR) uses liquid lead alloy (mainly liquid LBE) as the reactor coolant, which has good passive safety characteristics and economy, and is conducive to the realization of small It is a research hotspot in the field of international nuclear energy. At present, the research on the heat transfer characteristics of liquid lead-bismuth is not enough at home and abroad. The experimental data reflected in the existing literature are relatively long and limited in number. Therefore, it is necessary to fully study the heat transfer characteristics of liquid lead-bismuth. [0003] The Brayton cycle mostly uses ideal gas as...

AI Technical Summary

Problems solved by technology

Since the flow and heat transfer of supercritical carbon dioxide are different from those of general forced convection heat transfer, the flow and heat transfer characteristics of liquid lead-bismuth alloy and supercritical carbon dioxide and the coupled heat transfer characteristics between them are still being explored

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