Hi TRNSYS users,
I'm a master thesis student and I need to use type 907 to simulate an
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 inside the path
C:\Trnsys17\Tess Models\SampleCatalogData\IC Engine, but I don't
understand the values I must insert in the cells regarding four
columns: ‘Energy Input’, 'Exhaust Heat', 'Rejected to Atmosphere' and
'Total Heat'. At first, I thought that the ‘Total Heat’ values would
refer to the maximum value of heat power that can be recovered (fuel
power minus shaft power) but I verified that the values of ‘Total
Heat’ column are all bigger that these values. Moreover, I guess that
‘Energy Input’ refers to the value of fuel power, but I was wondering
how it’s evaluated: using the HHV or the LHV of the fuel?
Hoping to be clearer, I’m attaching in this message a picture
highlighting my issues.
Thanks in advance to anyone will try to help me,
Federica.
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