Abstract
The role of the void-fraction in a natural circulation BWR has been investigated using the scaled natural circulation loop facility DESIRE. To this end measurements of the void-fraction have been performed on a subchannel basis using gamma-transmission tomography. Subcooled boiling and void slip were observed. Lateral transport of void between the subchannels was negligible. Also the effect of the void-fraction on natural circulation has been studied both in steady-state and dynamic situations using noise analysis techniques. Results of the steady-state and dynamic measurements are compared. The void-to-flow transfer function is strongly affected by transport of void from the core region to the riser section.
Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
