Supercritical Carbon Dioxide Power Cycle Design Explorer

Below are the results of the current design space exploration. Details regarding the methodology used and the layouts considered can be found in the document Mapping the Design Space of a Recuperated, Recompression, Precompression Supercritical Carbon Dioxide Power Cycle with Intercooling, Improved Regeneration, and Reheat. You can use the selectors to change the figures that are displayed and explore the cycle.

Notes:

  • Sensitivity Contour Plot horizontal axis and vertical axis cannot be the same selection. If they are selected to be the same, an error message will be displayed for the Sensitivity Contour Plot.
  • Sensitivity Contour Plot contour level cannot be the same selection as the horizontal or vertical axis. If they are selected to be the same, the contour level will revert to "Maximum Cycle Efficiency".
  • Sensitivity Line Plot horizontal axis and vertical axis cannot be the same selection. If both are selected to be the same, the vertical axis will revert to "Maximum Cycle Efficiency".
  • ReCompressor pressure ratio (which is not yet plottable) will be close to the main compressor pressure ratio (the difference is due to heat exchanger pressure ratios, which are close to 1). Plotting the ReCompressor pressure ratio and other dependent variables may be a feature soon.
  • Click on a figure to download a high resolution pdf version.


Sensitivity Plots and Cycle PlotSensitivity Plots
Horizontal AxisVertical AxisContour LevelVertical Axis
Independent VariableValue Selected
(selection ignored if variable is used for a sensitivity plot axis)
Contour and Line PlotsContour PlotPlot Value for Maximum Efficiency
Contour PlotLine Plot
Dataset
PreCompressor Pressure Ratio
Main Compressor Pressure Ratio
Recompression Fraction
Low Temperature Recuperator Main Fraction High Pressure Component Mass Fraction
Main Compressor Inlet Pressure [Pa]
Maximum Temperature [K]
Minimum Temperature [K]
Main Compressor Isentropic Efficiency
PreCompressor Isentropic Efficiency
ReCompressor Isentropic Efficiency
Power Turbine Isentropic Efficiency
Main/Re/Pre Compressor Turbine Isentropic Efficiency
Heat Exchanger Pressure Drop [Pa/K]
Sensitivity Plot Dependent Variable Plot Value
Contour PlotLine Plot
Maximum Cycle Efficiency 
 
Cycle Plot
QuantityHorizontal AxisVertical AxisContour Level
None (loads quicker)
Temperature
Pressure
Enthalpy
Entropy
Density
CompressibilityFactor
cp
gamma
Open a New Window



Sensitivity Contour Plot



Sensitivity Line Plot







Cycle Plot
Notes:
  • This Plot will take about 15 seconds to display. Please be patient!
  • You can change the Cycle Plot Contour Level to None in order to speed up loading.







Proposed ReCompression PreCompression Supercritical Carbon Dioxide Power Cycle System Layout
Cycle Layout
Notes:
  • State points match those used in the Cycle Plot.
  • If the PreCompressor outlet temperature is less than or equal to Main Compressor outlet temperature, the low temperature recuperators will not be used and points 3, 12, and 15 will not be present in the Cycle Plot.
  • If the PreCompressor Pressure Ratio is set to 1 (no PreCompressor), no medium and low temperature recuperators will not be used and points 3, 11, 12, and 15 will not be present in the Cycle Plot
  • Currently the PreCompressor inlet temperature is equal to the Main Compressor Inlet temperature, and cannot yet be set to a higher temperature.
  • "HOT" indicates a heat source, and "COLD" indicates a cold sink such as a cooling tower.




©2007 - Andy Schroder