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[TRNSYS-users] type 907
Hi TRNSYS users,
I need to use type 907 to simulate an Internal Combustion (IC) engine.
I'm having some problems in the implementation of the efficiency map as
an external file to this type. I already saw the example
IC_Engine_Sample_Spreadsheet.xls, but I don't understand the values I
must insert in the cells regarding two columns: 'Exhaust Heat' and
'Rejected to Atmosphere'. Is 'Exhaust Heat' the value calculated as the
exhaust flow rate multiplied by the specific heat of the exhaust gas and
by the difference between the exit temperature of the exhaust gas and
the intake air temperature?
What about the value I must insert as 'Rejected to Atmosphere'?
Moreover I noticed that all the values required in the efficiency map
refer to a certain air intake temperature and that in the examples it is
specified more than one intake air temperature inside of the map. The
datasheet of my IC engine refers to only one value of air intake
temperature, is it possible to use just one value?
Thanks in advance to anyone will try to help me,
Federica.