Working Fluids and Their Effect on Geothermal Turbines Geothermal Lab Call Project

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Last modified on July 22, 2011.

Project Title Working Fluids and Their Effect on Geothermal Turbines
Project Type / Topic 1 Laboratory Call for Submission of Applications for Research, Development and Analysis of Geothermal Technologies
Project Type / Topic 2 Working Fluids for Binary Power Plants
Project Description With design of heat exchangers and turbines to minimize losses based on the second law of thermodynamics, cycles running with relatively cool geothermal fluids can be improved. This proposal intends to enhance the performance of geothermal turbine cycles through improved working fluids and improved use of cooling options, by taking advantage of expertise in prediction and measurement of thermodynamic properties, and accurate modeling of complex turbine cycles based on those properties.
State Tennessee
Objectives Select and test new geothermal working fluids leading to improved plant efficiency.
Awardees (Company / Institution) Oak Ridge National Laboratory

Partner 1 Sandia National Laboratory

Funding Opportunity Announcement DE-PS36-09GO99017
DOE Funding Level (total award amount) $935,000.00
Total Project Cost $935,000.00

Principal Investigator(s) Adrian S. Sabau
Other Principal Investigators Steve Wright, Sandia National Laboratory
Targets / Milestones - Measure thermodynamic properties of baseline working fluids.

- Molecular dynamics modeling of thermodynamic properties of working fluids.
- Thermodynamic modeling of the geothermal turbine system including cooling options.
- Investigate compatibility of working fluids with materials of construction.
- Evaluate geothermal plant efficiency and rank working fluids performance.

Location of Project Oak Ridge, TN

Funding Source American Recovery and Reinvestment Act of 2009
References EERE Geothermal Technologies Programs[1]


  1. EERE Geothermal Technologies Programs