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5.9 The Mixer Function: mixe

Here is a listing of mixe:

  function hdif=mixe(s,t,in,out) 
  % mixe          - Energy balance mixer module
  % function hdif=mixe(s,t,in,out)
  % Argument List
  % Argument    Gives
  %    s      the state of the exit stream:
  %          'v' for vapor, 'l' for liquid, 's' for solid.
  %    t     the temperature of the exit stream in Tdeg.
  %   in     the indices of inlet streams, 
  %   out    the index of exit stream.
  % hdif: the answer is the enthalpy out
  %    - the sum of the enthalpies in.
  % Ex. mixe('v',55,[2 3 4],6)
  %     will mix streams 2, 3 and 4 to form stream 6.
  %     Stream 6 will be a vapor at 55Tdeg.
  % For additional help and picture, see picmixe
  % OKB, TYLC
  global ns ne
  sne=size(ne);
  nc=sne(2)-3;
  if length(in)<2
     ns=ne(in,4:(nc+3));
  else
     ns=sum(ne(in,4:(nc+3)));
  end
  j=find(ns);
  setne(s,out,t,ns(j),j)
  hdif=ne(out,3)-sum(ne(in,3));

Also see The mixer function: mixe. Back to Chapter 5.

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