Thesis: Investigating switch-bed regenerators in Supercritical CO2 Brayton Cycles.

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Katheryn YoderM.S. Graduate StudentMechanical
EngineeringRoom 1327 ERBEmail
keyoder_at_wisc.eduHometown Phoenixville, PA

• Thesis Investigating switch-bed regenerators in
  Supercritical CO2 Brayton Cycles.

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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.

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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.

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