1. Katheryn Yoder M.S. Graduate Student Mechanical Engineering Room: 1327 ERB Hometown: Phoenixville, PA
Thesis: Investigating switch-bed regenerators in Supercritical CO2 Brayton Cycles.

2. Motivation The demand for clean, renewable energy is increasing
The supercritical CO2 (S-CO2) Brayton cycle can use smaller turbomachinery to achieve the same thermal efficiencies as the Rankine cycle, but it requires some form of heat regeneration to be a feasible alternative.
The regenerator is typically more efficient then the recuperator, but there has been little investigation into the use of a regenerator with a supercritical working fluid.

3. Goals and Objectives
To examine the heat regeneration of a closed S-CO2 Brayton cycle
To investigate the use of a switch-bed regenerator for heat regeneration in replace of a standard recuperator
To optimize the design of the regenerator, including parameters such as blow time, matrix porosity, and bed size. 3

4. Switch-Bed Regenerator Printed-Circuit Heat Exchanger (Recuperator)
heatric.com