T-MATS: Turbine, Cantera Library Block
This block simulates the performance of a turbine 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.

Turbine Inputs:

Turbine 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
Bleed 1	Cooling flow 1, 25x1 vector formated as Flow In above
Bleed 2	Cooling flow 2, 25x1 vector formated as Flow In above
Speed	shaft speed [rpm]
PR	Turbine Pressure Ratio

Turbine Outputs:

Turbine 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
Flow Error	Flow Error, in a typical system this will be driven to zero by an iterative solver
Power	Turbine Power Output [hp]
T_Data	Turbine internal calculation Data

Turbine Mask Variables:

Turbine Mask Variable	Description
MapFile_M	compressor map file name
s_C_Nc_M	corrected speed scalar constant
s_Wc_M	corrected flow scalar constant
s_PR_M	pressure ratio scalar constant
s_eff_M	cefficiency scalar constant
BSW1_M	Bleed 1, position switch [1 front, 0 back]
BSW2_M	Bleed 2, position switch [1 front, 0 back]
iDes_M	Design fork (0, 1, 2) 0 - iDes Enabled, Calculate turbine 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 values specified in 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.
Ndes_M	Design Shaft Speed [rpm], actual design point speed
PRmapDes_M	map Design Pressure Ratio [frac], design point PR used in map
effDes_M	Design Efficiency [frac], actual design point tubine efficiency
NcDes_M	map Design Corrected Shaft Speed [rpm], design point corrected speed used in map