Overview
Comment:Corrected enthalpy-entropy conversion -- use temp on the entropy side.
Downloads: Tarball | ZIP archive | SQL archive
Timelines: family | ancestors | descendants | both | origin/master | trunk
Files: files | file ages | folders
SHA3-256: 6416f81956809afb17757c6f9b672d5afd3225e6ac86b5a80f9830c15a4b0001
User & Date: gawthrop@users.sourceforge.net on 1998-02-25 16:59:56
Other Links: branch diff | manifest | tags
Context
1998-02-25
18:02:39
Removed the argument passing stuff .
Replaced by the simpar.m method. check-in: f27a8a929c user: gawthrop@users.sourceforge.net tags: origin/master, trunk
16:59:56
Corrected enthalpy-entropy conversion -- use temp on the entropy side. check-in: 6416f81956 user: gawthrop@users.sourceforge.net tags: origin/master, trunk
15:28:34
Added state.m rep. check-in: e0f4289844 user: gawthrop@users.sourceforge.net tags: origin/master, trunk
Changes
Hide Diffs Unified Diffs Ignore Whitespace Patch

Modified mttroot/mtt/lib/comp/simple/ES_eqn.m from [862ca697d4] to [1a4390c7e9].

︙︙
13
14
15
16
17
18
19



20
21
22
23
24
25
26



% %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %% Version control history
% %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %% $Id$
% %% $Log$



% %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%


% Copyright (c) P.J. Gawthrop, 1997.


if nargin<6








>
>
>








13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29



% %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %% Version control history
% %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %% $Id$
% %% $Log$
% %% Revision 1.1  1998/02/25 15:03:51  peterg
% %% Initial revision
% %%
% %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%


% Copyright (c) P.J. Gawthrop, 1997.


if nargin<6
︙︙
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52

53
54
55
56
57
58
59
60
61
62
63

end


% There are 2 ports; extract the information
e_bond = bonds(1,:);
s_bond = bonds(2,:);

% The efforts are the same
if e_bond(1)==1 %effort imposed on the enthalpy bond 
  fprintf(eqnfile,'%s := %s + t_0;\n' , ...
    varname(name,bond_number(2), 1), ...
    varname(name,bond_number(1), 1) );
else %effort imposed on the entropy bond 
  fprintf(eqnfile,'%s := %s - t_0;\n' , ...
    varname(name,bond_number(1), 1), ...
    varname(name,bond_number(2), 1) );
end;

% The flows need to be converted

if e_bond(2)==-1 %flow imposed on the enthalpy bond 
  fprintf(eqnfile,'%s := %s/(%s + t_0);\n' , ...
    varname(name,bond_number(2), -1), ...
    varname(name,bond_number(1), -1), ...
    varname(name,bond_number(2), 1) );
else % flow imposed on the entropy bond 
    fprintf(eqnfile,'%s := %s*(%s - t_0);\n' , ...
    varname(name,bond_number(1), -1), ...
    varname(name,bond_number(2), -1), ...
    varname(name,bond_number(2), 1) );
end;








|










|
>

|




|





37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67

end


% There are 2 ports; extract the information
e_bond = bonds(1,:);
s_bond = bonds(2,:);

% The efforts are the same - but the enthalpy side has relative T
if e_bond(1)==1 %effort imposed on the enthalpy bond 
  fprintf(eqnfile,'%s := %s + t_0;\n' , ...
    varname(name,bond_number(2), 1), ...
    varname(name,bond_number(1), 1) );
else %effort imposed on the entropy bond 
  fprintf(eqnfile,'%s := %s - t_0;\n' , ...
    varname(name,bond_number(1), 1), ...
    varname(name,bond_number(2), 1) );
end;

% The flows need to be converted - use the absolute temp on the
% entropy side
if e_bond(2)==-1 %flow imposed on the enthalpy bond 
  fprintf(eqnfile,'%s := %s/%s;\n' , ...
    varname(name,bond_number(2), -1), ...
    varname(name,bond_number(1), -1), ...
    varname(name,bond_number(2), 1) );
else % flow imposed on the entropy bond 
    fprintf(eqnfile,'%s := %s*%s;\n' , ...
    varname(name,bond_number(1), -1), ...
    varname(name,bond_number(2), -1), ...
    varname(name,bond_number(2), 1) );
end;

MTT: Model Transformation Tools
[ GitHub | SourceHut | Sourceforge | Fossil RSS ]