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Added mttroot/mtt/lib/examples/Thermal/ThermodynamicCycles/DieselCycle/DieselCycle_desc.tex version [ea96ae646d].
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% Verbal description for system DieselCycle (DieselCycle_desc.tex)
% Generated by MTT on Thu Dec 4 15:59:55 GMT 1997.
% %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %% Version control history
% %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %% $Id$
% %% $Log$
% Revision 1.1 1997/12/09 12:30:26 peterg
% Initial revision
%
% Revision 1.1 1997/12/08 09:37:04 peterg
% Initial revision
%
% %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
The acausal bond graph of system \textbf{DieselCycle} is
displayed in Figure \Ref{DieselCycle_abg} and its label
file is listed in Section \Ref{sec:DieselCycle_lbl}.
The subsystems are listed in Section \Ref{sec:DieselCycle_sub}.
The Diesel cycle is a simple closed thermodynamic cycle with four parts:
\begin{enumerate}
\item Isentropic compression
\item Heating at constant pressure
\item Isentropic expansion
\item Cooling at constant volume
\end{enumerate}
The subsystem \textbf{Cycle} (Section \Ref{sec:Cycle}) is a two-port
component describing an ideal gas. It has two energy ports which, with
integral causality correspond to
\begin{enumerate}
\item Entropy flow in; temperature out
\item Volume rate of change in; pressure out
\end{enumerate}
In contast to the Otto cycle (see Table
\Ref{tab:cycles} where each table entry gives the causality on the
heat and work ports respectively). The ideal Diesel cycle has
derivative causality on the {\bf [Work]} port for one part of the
cycle.
To avoid this causality change, the Diesel cycle is approximated by
applying the volume change from a pressure source via a resistance
{\bf R} component. During the {\em heat injection\/} part of the
cycle, the resistance parameter $r\approx 0$, but during the other parts of
the cycle, the resistance parameter $r\approx \inf$.
The simulation parameters appear in Section
\Ref{sec:DieselCycle_numpar.txt}. The results are plotted against time
as follows:
\begin{itemize}
\item Volume (Figure \Ref{fig:DieselCycle_odeso.ps-DieselCycle-cycle-V})
\item Pressure (Figure
\Ref{fig:DieselCycle_odeso.ps-DieselCycle-cycle-P})
\item Entropy (Figure \Ref{fig:DieselCycle_odeso.ps-DieselCycle-cycle-S})
\item Temperature (Figure
\Ref{fig:DieselCycle_odeso.ps-DieselCycle-cycle-T})
\end{itemize}
These values are replotted as the standard PV and TS diagrams in
Figures
\Ref{fig:DieselCycle_odeso.ps-DieselCycle-cycle-V:DieselCycle-cycle-P}
and
\Ref{fig:DieselCycle_odeso.ps-DieselCycle-cycle-S:DieselCycle-cycle-T}
respectively.
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Added mttroot/mtt/lib/examples/Thermal/ThermodynamicCycles/DieselCycle/DieselCycle_lbl.txt version [af8cc4d544].
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%SUMMARY DieselCycle:a simple closed thermodynamic cycle
%DESCRIPTION The Diese cycle is a simple closed thermodynamic cycle
%DESCRIPTION with four parts:
%DESCRIPTION o Isentropic compression
%DESCRIPTION o Heating at constant pressure
%DESCRIPTION o Isentropic expansion
%DESCRIPTION o Cooling at constant volume
%% Label file for system DieselCycle (DieselCycle_lbl.txt)
% %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %% Version control history
% %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %% $Id$
% %% $Log$
% %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%% 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 Cycle
cycle
% Component type R
r lin flow,r
% Component type SS
Heat SS internal,external
Work SS external,internal
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