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):032602-032602-10. doi:10.1115/1.4028391 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.

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):032602-032602-10. doi:10.1115/1.4028391 Figure Legend: Compressor stage geometry with no inlet guide vanes and vaneless diffuser [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):032602-032602-10. doi:10.1115/1.4028391 Figure Legend: Radial inflow turbine stage geometry

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):032602-032602-10. doi:10.1115/1.4028391 Figure Legend: Comparison between measured and predicted rotor windage losses

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):032602-032602-10. doi:10.1115/1.4028391 Figure Legend: Experimental setup diagram

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):032602-032602-10. doi:10.1115/1.4028391 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)

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):032602-032602-10. doi:10.1115/1.4028391 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)

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):032602-032602-10. doi:10.1115/1.4028391 Figure Legend: Predicted and measured turbine mass flow rate for different turbine pressure ratios

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):032602-032602-10. doi:10.1115/1.4028391 Figure Legend: Predicted and measured turbine isentropic efficiency for different turbine pressure ratios

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):032602-032602-10. doi:10.1115/1.4028391 Figure Legend: Predicted and measured compressor isentropic efficiency for different compressor pressure ratios

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):032602-032602-10. doi:10.1115/1.4028391 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

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):032602-032602-10. doi:10.1115/1.4028391 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

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):032602-032602-10. doi:10.1115/1.4028391 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

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):032602-032602-10. doi:10.1115/1.4028391 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