Title

Experimental Investigation of Influence of Heating Distribution Variation of Riser Channel on Heat Transfer in Two Channels Facility

Presenter Information

Derek Berndt

Department

Chemical and Biochemical Engineering

Major

Chemical Engineering

Research Advisor

Usman, Shoaib
Al-Dahhan, Muthanna H.

Advisor's Department

Nuclear Engineering and Radiation Science

Second Advisor's Department

Chemical and Biochemical Engineering

Funding Source

U.S. Department of Energy-Nuclear Energy Research Initiative (DOE-NERI) project (NEUP 13- 4953 (DENE0000744)

Abstract

This study investigated how heat transfer occurs during pressurized conduction cooldown accidents (PCC) to understand the passive safety features of natural convection in prismatic modular reactors (PMR). PCC is a loss of flow accident, meaning the flow of working fluid to the reactor is suspended. In contrast to DCC (depressurized conduction cooldown), during PCC, high working fluid pressure is maintained. Understanding how reactor properties affect natural convection during PCC is crucial to passive safety. To study this phenomenon, a scaled down PMR model was designed by multiphase reactors engineering and applications laboratory (mReal) team at Missouri University of Science and Technology (S&T), consisting of upper and lower plenum connected by a riser and downcomer channel. Non-uniform heat flux was applied to the riser channel, simulating axial temperature distribution of the nuclear fuel in PMR. Air was used as coolant to study the effect of non-uniform heating on natural convection.

Biography

Derek Berndt is a Sophomore Student in the Chemical Engineering program at S&T, with a passion for efficiency and optimization of Chemical Engineering Processes, especially in areas relating to heat transfer and thermodynamics. He is also pursuing minors in Mathematics and Chemistry, and is actively involved with Christian Campus Fellowship and Learning Enhancement Across Disciplines.

Research Category

Engineering

Presentation Type

Poster Presentation

Document Type

Poster

Location

Upper Atrium

Presentation Date

17 Apr 2018, 1:00 pm - 4:00 pm

Comments

Joint project with Salman M. Alshehri (Ph.D. Candidate)

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Apr 17th, 1:00 PM Apr 17th, 4:00 PM

Experimental Investigation of Influence of Heating Distribution Variation of Riser Channel on Heat Transfer in Two Channels Facility

Upper Atrium

This study investigated how heat transfer occurs during pressurized conduction cooldown accidents (PCC) to understand the passive safety features of natural convection in prismatic modular reactors (PMR). PCC is a loss of flow accident, meaning the flow of working fluid to the reactor is suspended. In contrast to DCC (depressurized conduction cooldown), during PCC, high working fluid pressure is maintained. Understanding how reactor properties affect natural convection during PCC is crucial to passive safety. To study this phenomenon, a scaled down PMR model was designed by multiphase reactors engineering and applications laboratory (mReal) team at Missouri University of Science and Technology (S&T), consisting of upper and lower plenum connected by a riser and downcomer channel. Non-uniform heat flux was applied to the riser channel, simulating axial temperature distribution of the nuclear fuel in PMR. Air was used as coolant to study the effect of non-uniform heating on natural convection.