Analysis of Reweting of Hot System

Singh, Ashutosh (2009) Analysis of Reweting of Hot System. BTech thesis.



In nuclear reactors, the occurrence of critical heat flux leads to fuel rod overheating with clad fusion and radioactive products leakage. To predict the effects of such phenomenon, experiments are performed using electrically heated rods to simulate operational and accidental conditions of nuclear fuel rods. In the present work, it is performed a theoretical analysis of the drying and rewetting front propagation during a critical heat flux experiment, starting with the application of an electrical power step from steady state condition. After the occurrence of critical heat flux, the drying front propagation is predicted. After a few seconds, a power cut is considered and the rewetting front behavior is analytically observed. Studies performed with various values of coolant mass flow rate show that this variable has more influence on the drying front velocity than on the rewetting one

Item Type:Thesis (BTech)
Uncontrolled Keywords:Rewetting,Critical heat flux
Subjects:Engineering and Technology > Mechanical Engineering > Thermodynamics
Divisions: Engineering and Technology > Department of Mechanical Engineering
ID Code:989
Deposited By:Ashutosh Singh
Deposited On:14 May 2009 12:02
Last Modified:14 May 2009 12:02
Related URLs:
Supervisor(s):Sahu, S K

Repository Staff Only: item control page