T-MATS: Compressor, Cantera Library Block
This block simulates the performance of a compressor using basic thermodynamic equations, properties, Cantera functions, and table lookups. To utilize this block a Cantera object must exist in the workspace as a global variable named fs, which may be created with the Cantera importPhase command. The fs variable must include all Species defined in the file canteraload.m.

Compressor Inputs:

Compressor Input	Description
Flow In	Flow Data Input, 25x1 vector consisting of: -1- W - gas path flow [pps] -2- s - entropy [BTU/(lbm*degR)] -3- Tt - total temperature [degR] -4- Pt - total pressure [psia] -5- ht - total enthlapy [BTU/lbm] -6- rhot - total density [lbm/ft3] -7- gamt - total specific heat ratio -8- Ts - static temperature [degR] -9- Ps - static pressure [psia] -10- hs - static enthalpy [BTU/lbm] -11- rhos - static density [lbm/ft3] -12- gams - static specific heat ratio -13- Vflow - flow velocity [ft/sec] -14- MN - Mach number -15- A - flow area [in2] -16to21- species array values, defined in canteraload.m -22to25- future use
Speed	shaft speed [rpm]
Rline	R-line, position on compressor map Determines pressure ratio, efficiency, and gas path flow. The value for this variable will need be solved for by driving flow error across the engine to zero.

Compressor Outputs:

Compressor Output	Description
Flow Out	Flow Data Output, 25x1 vector consisting of: -1- W - gas path flow [pps] -2- s - entropy [BTU/(lbm*degR)] -3- Tt - total temperature [degR] -4- Pt - total pressure [psia] -5- ht - total enthlapy [BTU/lbm] -6- rhot - total density [lbm/ft3] -7- gamt - total specific heat ratio -8- Ts - static temperature [degR] -9- Ps - static pressure [psia] -10- hs - static enthalpy [BTU/lbm] -11- rhos - static density [lbm/ft3] -12- gams - static specific heat ratio -13- Vflow - flow velocity [ft/sec] -14- MN - Mach number -15- A - flow area [in2] -16to21- species array values, defined in canteraload.m -22to25- future use
Bleed 1	Fractional Bleed 1, 25x1 vector defined as Flow Out above.
Bleed 2	Fractional Bleed 2, 25x1 vector defined as Flow Out above.
Flow Error	Normalized Error [frac], in a typical system this will be driven to zero by an iterative solver
Power	Compressor power output [hp], negative value for a compressor.
C_Data	Compressor internal calculation Data, 4x1 vector including: - SMavail - Stall Margin Available [%] - eff - Efficiency [frac] - Wc - corrected flow [pps] - PR - pressure ratio [frac]

Compressor Mask Variables:

Compressor Mask Variablet	Description
MapFile_M	compressor map file name
s_C_Nc_in_M	corrected speed scalar constant
s_C_Wc_in_M	corrected flow scalar constant
s_C_PR_in_M	pressure ratio scalar constant
s_C_eff_in_M	cefficiency scalar constant
Wfrac1_M	Fractional Bleed 1 Demand[frac]
hfrac1_M	engine Bleed 1 Fractional enthalpy [frac]
Pfrac1_M	engine Bleed 1 Fractional Total Pressure [frac]
Wfrac2_M	Fractional Bleed 2 Demand[frac]
hfrac2_M	engine Bleed 2 Fractional enthalpy [frac]
Pfrac2_M	engine Bleed 2 Fractional Total Pressure [frac]
iDes_M	Design fork (0, 1, 2) 0 - Calculate compressor map scalars based on design variables When iDesign is set to 0, scalar constants from the General tab will not be used. Scalars calculated will be saved to the workspace. 1 - Scalar variables will be overwritten with scalar values from the workspace. When iDesign is set to 1, scalar constants from the General tab and the Design values from the iDesign tab will not be used. 2 - Scalar variables from the general tab will be used as the map scalars. When iDesign is set to 2, scalar constants from the General tab will be used; Design values from the iDesign tab will not be used.
NcDes_M	map Design Corrected Shaft Speed [rpm], design point speed used in map
effDes_M	Design Efficiency [frac], actual design point compressor efficiency
PRdes_M	Design Pressure Ratio [frac], actual design point compressor PR
RlineDes_M	map Design Rline, design point Rline used in map