Nevzat AKKURT

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Nevzat AKKURT
M.Sc Student
Mechanical Engineering
Room 1337, ERB
Email akkurt_at_wisc.edu
Hometown Ankara, TURKEY

• Thesis Investigation of the Criteria for Fluid
  selection in an Organic Rankine Cycle based on a
  solar-geothermal hybrid plant

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Motivation

• The organic Rankine cycle is a promising way for
  the conversion of low temperature heat to
  electricity.
• Different fluids can be used in organic Rankine
  cycles for the utilization of additional (solar,
  geothermal, waste) heat.
• The suitability of a certain fluid depends on its
  thermodynamic properties as well as on the
  conditions at which the solar and geothermal heat
  are available, therefore it is often unclear if
  an organic fluid has any advantage compared to
  inorganic fluids like water.

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Goals and Objectives

• Refrigerants such as R134a (which is widely
  used, nontoxic and nonflammable fluid), high
  boiling point organic fluids and mixtures of
  fluids (R141b mixed with RC318) will be
  investigated as possible working fluids for the
  different temperature ranges at which the
  solar-geothermal heat is available.
• Optimization and dimensioning of the main Organic
  Rankine cycle components for the utilization of
  the geothermal source
• Optimization of the off-design working
  conditions, when an additional (solar energy)
  heat source is included.
• Increase net efficiency for power generation
  using mixtures of fluids and find the most
  suitable working fluid.