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How to set emission factor for each year of a specific process during its lifetime?
#13
(05-01-2021, 09:58 PM)Antti-L Wrote: I am confused by what the "exact same troubles indicated by suxin" are.  I have myself no troubles when I define the parameters in the example I gave.  Maybe you can clarify what those troubles are?

The year in FLO_FUNCX is the vintage year, i.e. the period of installation (the same is true for FLO_EMIS if the process is vintaged).  By using a SHAPE for an emission factor, you can thus define age-dependent emission factors. The technology must of course also be defined vintaged for that to work.

If your Base emission factor is FLO_EMIS(r,v,p,cg,c,ts), you will thus get an emission factor of FLO_EMIS(r,v,p,cg,c,ts)*SHAPE(AGE) for the technology of vintage v, as a function of its age. For example, if you define FLO_EMIS(v)=10, and SHAPE(10) = 1.8, the emission factor for vintage v would be 18 at the age of 10 years.  When periods are longer than one year, the age is an average value over the period.

Your results did not show the vintages, and so they were not of much use for verifying how it works...

I of course tested my own example already in 2017, and verified that it worked as expected.

Q1: "Did I made an error in the way I modelled this?"
A1:  I don't know how you have modelled it.  Can you show?
Q2:  "Or Is the shape value not functioning as I want it to?"
A2:  I think the SHAPE value is only functioning as documented. Do you not want it that way?

Dear Antti,

Thanks for the quick reaction. This already clarified something. I think the SHAPE attribute is not the solution for my initial problem, I'll open a new thread to discuss that. Still, there are some question left here. 

First of all, the technology is vintaged. Regarding the troubles from suxin, I relate to his latest post. I also get errors when when SHAPE, FLO_EMIS and FLO_FUNCX are in the same INS table. When I seperate them (SHAPE in INS1, FLO_EMIS in INS2, and FLO_FUNCX in INS3) the errors disappear. 

I copy-pasted your INS table, and run the three scenarios with the defined SHAPE values (see attached)

   

Regarding my model results, I can't see how the model comes up with an emission factor of 10.06 in 2010, as even the average SHAPE*10 for the period 2000-2010 needs to be higher than this value.
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Messages In This Thread
RE: How to set emission factor for each year of a specific process during its lifetime? - by Tjerk - 06-01-2021, 02:14 PM

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