Session: FSI-01-01 Thermal Hydraulic Phenomena with Vessels, Piping and Components-1

Paper Number: 125095

125095 - Computational Fluid Dynamics Approach to Evaluate Jet Impingement Loads Due to Rupture of High Energy Pipes in Nuclear Reactors 

Accurate evaluation of jet impingement loads due to pipe ruptures is crucial for nuclear power plant design and safety analysis. These loads can cause catastrophic damage to neighboring components. Although jet impingement models exist in the literature, additional effort is required to overcome their inaccuracy and non-conservatism. In the current study, an evaluation of the jet impingement loads due to a full guillotine rupture in a high energy feeder is investigated using Computational Fluid Dynamics (CFD). The model represents a higher fidelity approach to better assess the postulated feeder pipe rupture and its effect on neighboring feeders. Specifically, a 3D multiphysics ANSYS Fluent model is developed to simulate the rupture of the selected feeder. The model accounts for the multiphase nature of the problem by including heavy water liquid, heavy water vapor, and surrounding air. Moreover, the model accounts for a number of highly coupled physical processes including turbulence, multiphase interactions, flashing, and heat transfer. Our results show that the model can accurately predict the jet behavior and characteristics. Additionally, the results were used to evaluate the loads on neighboring feeders and their dependence on the size of the rupture pipe and break area. The outcome of the current work can be used to better understand postulated rupture events and their consequent loads, which will help analyzing the safety of nuclear power plants.

Presenting Author: Ali M. M. I. Qureshy Next Structural Integrity Inc.

Presenting Author Biography: I am a thermal hydraulics and CFD Analyst at Next Structural Integrity Inc., Canada. I have completed my Ph.D. in Mechanical Engineering Deptemnt, Ontario Tech University, Canada, in 2021. I received B.Sc. and M.Sc. degrees in Mechanical Engineering, Assiut University, Egypt, in 2010 and 2016. I have more than 10 years of research experience in several research projects in different fields: renewable energy, solar hydrogen production, thermofluid simulation, photoelectrochemistry modeling. I have also published 15 research articles in top tier energy journals as well as presented and contributed to 4 international conferences related to different topics such as: hydrogen production (experimental and simulation), CFD modeling and simulation, multiphysics simulation, clean energy systems, thermodynamics modeling, electrochemical modeling, thermo-fluid application, and optimization.

Authors:

Ali M. M. I. Qureshy Next Structural Integrity Inc.
M. Safy Hassan Next Structural Integrity Inc.
Assem Elzaabalawy Next Structural Integrity Inc.
Mohamed Aboulella Next Structural Integrity Inc.
Qasim Khan Next Structural Integrity Inc.
Waleed Mekky Next Structural Integrity Inc.