Experimental Characterization of Heat Transfer and Fluid Flow in TCR Fuel Elements under Varying Operational Conditions

Author

EL Mokhtar Majdoub EM, CUNY City CollegeFollow

Date of Award

2025

Document Type

Thesis

Department

Mechanical Engineering

First Advisor

Masahiro Kawaji

Keywords

Master, degree, TCR, Heat, Exchanger, Flow

Abstract

ABSTRACT

The Transformational Challenge Reactor (TCR) marks a significant leap forward in nuclear reactor innovation, focusing on modular construction, high efficiency, and improved safety. This research explores the coupled behavior of heat transfer and fluid flow within the TCR's 3D-printed ceramic core under varying operational conditions. Nitrogen was utilized as the cooling medium, with experiments carried out at pressures ranging from 300 to 600 psi and temperatures spanning 100°C to 300°C. Critical parameters, including inlet and outlet gas temperatures, wall temperatures at both ends of the core, and coolant flow rates were monitored to evaluate thermal performance and system reliability. Findings indicate that elevated pressures contribute to better thermal conductivity, while higher flow rates enhance cooling capacity but shorten the coolant’s residence time. The stability of vessel wall temperatures across all test conditions highlights the effectiveness of the system’s insulation. These insights reinforce the TCR’s potential for application in next-generation, high-temperature nuclear systems.

Recommended Citation

Majdoub, EL Mokhtar EM, "Experimental Characterization of Heat Transfer and Fluid Flow in TCR Fuel Elements under Varying Operational Conditions" (2025). CUNY Academic Works.
https://academicworks.cuny.edu/cc_etds_theses/1264