1. Date of download: 11/6/2017
Copyright © ASME. All rights reserved.
From: Modeling and Experimental Investigation of an Oil-Free Microcompressor-Turbine Unit for an Organic Rankine Cycle Driven Heat Pump
J. Eng. Gas Turbines Power. 2014;137(3): doi: /
Figure Legend:
Grassmann diagram of the ORC-HP exergy flows. Results corresponding to experimental run #12 (see Table 3). Environmental conditions: P0 = 1 bar and T0 = 10 °C.

2. Date of download: 11/6/2017
Copyright © ASME. All rights reserved.
From: Modeling and Experimental Investigation of an Oil-Free Microcompressor-Turbine Unit for an Organic Rankine Cycle Driven Heat Pump
J. Eng. Gas Turbines Power. 2014;137(3): doi: /
Figure Legend:
Compressor stage geometry with no inlet guide vanes and vaneless diffuser [14]

3. Date of download: 11/6/2017
Copyright © ASME. All rights reserved.
From: Modeling and Experimental Investigation of an Oil-Free Microcompressor-Turbine Unit for an Organic Rankine Cycle Driven Heat Pump
J. Eng. Gas Turbines Power. 2014;137(3): doi: /
Figure Legend:
Radial inflow turbine stage geometry

4. Date of download: 11/6/2017
Copyright © ASME. All rights reserved.
From: Modeling and Experimental Investigation of an Oil-Free Microcompressor-Turbine Unit for an Organic Rankine Cycle Driven Heat Pump
J. Eng. Gas Turbines Power. 2014;137(3): doi: /
Figure Legend:
Comparison between measured and predicted rotor windage losses

5. Date of download: 11/6/2017
Copyright © ASME. All rights reserved.
From: Modeling and Experimental Investigation of an Oil-Free Microcompressor-Turbine Unit for an Organic Rankine Cycle Driven Heat Pump
J. Eng. Gas Turbines Power. 2014;137(3): doi: /
Figure Legend:
Experimental setup diagram

6. Date of download: 11/6/2017
Copyright © ASME. All rights reserved.
From: Modeling and Experimental Investigation of an Oil-Free Microcompressor-Turbine Unit for an Organic Rankine Cycle Driven Heat Pump
J. Eng. Gas Turbines Power. 2014;137(3): doi: /
Figure Legend:
Static pressures at turbine rotor inlet (PT,4), at compressor impeller exhaust (PC,4), at compressor inlet (PC,in), and in the bearing housing (PB)

7. Date of download: 11/6/2017
Copyright © ASME. All rights reserved.
From: Modeling and Experimental Investigation of an Oil-Free Microcompressor-Turbine Unit for an Organic Rankine Cycle Driven Heat Pump
J. Eng. Gas Turbines Power. 2014;137(3): doi: /
Figure Legend:
Relative leakage mass flow rate out of the CTU as a function of the ratio between pressure at turbine rotor inlet (PT,4) and pressure in the bearing housing (PB)

8. Date of download: 11/6/2017
Copyright © ASME. All rights reserved.
From: Modeling and Experimental Investigation of an Oil-Free Microcompressor-Turbine Unit for an Organic Rankine Cycle Driven Heat Pump
J. Eng. Gas Turbines Power. 2014;137(3): doi: /
Figure Legend:
Predicted and measured turbine mass flow rate for different turbine pressure ratios

9. Date of download: 11/6/2017
Copyright © ASME. All rights reserved.
From: Modeling and Experimental Investigation of an Oil-Free Microcompressor-Turbine Unit for an Organic Rankine Cycle Driven Heat Pump
J. Eng. Gas Turbines Power. 2014;137(3): doi: /
Figure Legend:
Predicted and measured turbine isentropic efficiency for different turbine pressure ratios

10. Date of download: 11/6/2017
Copyright © ASME. All rights reserved.
From: Modeling and Experimental Investigation of an Oil-Free Microcompressor-Turbine Unit for an Organic Rankine Cycle Driven Heat Pump
J. Eng. Gas Turbines Power. 2014;137(3): doi: /
Figure Legend:
Predicted and measured compressor isentropic efficiency for different compressor pressure ratios

11. Date of download: 11/6/2017
Copyright © ASME. All rights reserved.
From: Modeling and Experimental Investigation of an Oil-Free Microcompressor-Turbine Unit for an Organic Rankine Cycle Driven Heat Pump
J. Eng. Gas Turbines Power. 2014;137(3): doi: /
Figure Legend:
Sensitivity analysis: (a) CTU efficiency as a function of the compressor pressure ratio and (b) mean ∂ηCTU/∂ɛt as a function of the mean compressor pressure ratio

12. Date of download: 11/6/2017
Copyright © ASME. All rights reserved.
From: Modeling and Experimental Investigation of an Oil-Free Microcompressor-Turbine Unit for an Organic Rankine Cycle Driven Heat Pump
J. Eng. Gas Turbines Power. 2014;137(3): doi: /
Figure Legend:
Sensitivity analysis: (a) CTU efficiency as a function of the compressor pressure ratio and (b) mean (∂ηCTU/∂k+) as a function of the mean compressor pressure ratio

13. Date of download: 11/6/2017
Copyright © ASME. All rights reserved.
From: Modeling and Experimental Investigation of an Oil-Free Microcompressor-Turbine Unit for an Organic Rankine Cycle Driven Heat Pump
J. Eng. Gas Turbines Power. 2014;137(3): doi: /
Figure Legend:
Sensitivity analysis of the dimensionless tip clearance: (a) turbine pressure ratio versus compressor pressure ratio and (b) turbine power versus compressor pressure ratio

14. Date of download: 11/6/2017
Copyright © ASME. All rights reserved.
From: Modeling and Experimental Investigation of an Oil-Free Microcompressor-Turbine Unit for an Organic Rankine Cycle Driven Heat Pump
J. Eng. Gas Turbines Power. 2014;137(3): doi: /
Figure Legend:
Sensitivity analysis of the dimensionless surface roughness: (a) turbine pressure ratio versus compressor pressure ratio and (b) turbine power versus compressor pressure ratio