%SUMMARY Poly - computes polytropic expansion temperature.
%DESCRIPTION Parameter: alpha = (n-1)/n (n = polytropic index)
%DESCRIPTION Port [P1]: Pressure 1
%DESCRIPTION Port [T1]: Temperature 1
%DESCRIPTION Port [P2]: Pressure 2
%DESCRIPTION Port [T2]: Temperature 2

%DESCRIPTION This four-port component computes the temperature following
%DESCRIPTION a polytropic expansion using where alpha = (n-1)/n and n is
%DESCRIPTION the coefficient of polytropic expansion.  This component
%DESCRIPTION imposes zero flow at all its ports and therefore does not
%DESCRIPTION affect energy balance.  The output is bicausal as it
%DESCRIPTION imposes both T_2 and a zero flow.  This is implemented using
%DESCRIPTION the bicausal SS component labeled ``zero''.

%ALIAS	P1	Pressure_1
%ALIAS	P2	Pressure_2
%ALIAS	T1	Temperature_1
%ALIAS	T2|out	Temperature_2

%ALIAS $1	alpha

%% Label file for system Poly (Poly_lbl.txt)

% %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %% Version control history
% %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %% $Id$
% %% $Log$
% %% Revision 1.1  1998/03/27 10:48:50  peterg
% %% Initial revision
% %%
% %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

%% Each line should be of one of the following forms:
%	a comment (ie starting with %)
%	Component-name	CR_name	arg1,arg2,..argn
%	blank



% Component type R
	r		Poly		$1
	r		Poly		alpha

% Component type SS
	zero		0		0
	zero		SS		0,0
	[Pressure_1]	SS		external,external
	[Temperature_1]	SS		external,external
	[Pressure_2]	SS		external,external
	[Temperature_2]	SS		external,external