Natural Convection in Missouri S&T Prismatic Scaled Down Facility Subject to Constant Heat Flux
Department
Chemical and Biochemical Engineering
Major
Chemical Engineering
Research Advisor
Al-Dahhan, Muthanna H.
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
Previous findings suggest that natural circulation in simplified geometries cannot be directly extended to Prismatic Modular high temperature nuclear Reactor (PMR). Therefore, Missouri S&T constructed a prismatic scaled down dual channel facility and developed advanced fast response flash mounted heat transfer probes (HT) technique. Natural circulation is stimulated within the facility by electrically heating one channel and cooling the second one. The HT sophisticated technique is implemented to measure the local heat transfer coefficient (h) axially along the heated channel which is subjected to constant applied heat flux. Four values of heating intensity were investigated (i.e., 37, 40, 45, 50 watt). Results show that the local heat transfer coefficient (expressed in Nusselt number) is directly proportional to the heating intensity (expressed in Rayleigh number). Also, the results show that natural circulation behavior at channel ends is significantly influenced by the coolant mixing phenomena occurring in the reactor two plena.
Biography
After living his life in Highland Illinois, Austin Fischer moved to Rolla Missouri to pursue a degree in Chemical Engineering. As a junior, he currently holds the position as the president of the Sigma Chi Fraternity at Missouri University of Science and Technology. He plans to graduate in spring of 2017, and possibly pursue a career in Chemical Engineering consulting. He is also a member of AIChE, and has acquired skills in MATLAB, Aspen Plus, and various Microsoft Office Programs.
Research Category
Engineering
Presentation Type
Poster Presentation
Document Type
Poster
Location
Upper Atrium/Hallway
Presentation Date
11 Apr 2016, 1:00 pm - 3:00 pm
Natural Convection in Missouri S&T Prismatic Scaled Down Facility Subject to Constant Heat Flux
Upper Atrium/Hallway
Previous findings suggest that natural circulation in simplified geometries cannot be directly extended to Prismatic Modular high temperature nuclear Reactor (PMR). Therefore, Missouri S&T constructed a prismatic scaled down dual channel facility and developed advanced fast response flash mounted heat transfer probes (HT) technique. Natural circulation is stimulated within the facility by electrically heating one channel and cooling the second one. The HT sophisticated technique is implemented to measure the local heat transfer coefficient (h) axially along the heated channel which is subjected to constant applied heat flux. Four values of heating intensity were investigated (i.e., 37, 40, 45, 50 watt). Results show that the local heat transfer coefficient (expressed in Nusselt number) is directly proportional to the heating intensity (expressed in Rayleigh number). Also, the results show that natural circulation behavior at channel ends is significantly influenced by the coolant mixing phenomena occurring in the reactor two plena.
Comments
Joint project with Cesar Ramerez, I. A. Said and M. M. Taha