Topic: Help with Avg Environmental LoadingSubscribe | Previous | Next
Andrés Robles 3/17/2020
Hi!
I'm working with environmental loadings and I have two doubts.
1) When I work with transformation modules and I have some process with his respect environmental loading, I don't know if the multiplication to obtain the emissions results is between historical production or the exogenous capacity.
2) I'm working with criteria polluntants, I can do a default environmental loading for those pollutants (see attached image?
Thanks for your help.
Charlie Heaps 3/17/2020
Click on one of the Feedstock fuels under each Transformation process then examine the Avg Environmental Loadings for one of those fuels. You should see a column on the far right marked Method. You can use this to choose how the emission factors are specifed: per unit of energy consumption, per unit of production, per unit of losses, per unit of capacity or as a total loading. The latter method can sometimes be useful if you want to do a separate calculations of emissions and then simply link to it via an expression that points to another branch/variable. See attached screenshot.
Notice that you can also specify Auxiliary Fuel Use per unit of energy consumption or production. These fuels are NOT subject to the losses implied by the Process efficiency. This can be useful for specifying own use of energy in a process for example. Auxiliary fuels can also have their own emission factors per unit of auxiliary energy used.
Also, yes, you can specify factors for any pollutant including criteria air pollutants. You can also create your own effects in the General Effects screen.
Hope this helps.
Charlie
Andrés Robles 3/17/2020
Thank Charlie.
I have one more quiestion, how I do a "template" of the criteria pollutants shown before (image) for all my processes
I really appreciate your help
Charlie Heaps 3/17/2020
There's no template but you can copy and paste technologies including all there "child" emission factors. You can also add in emission factors from the TED database. TED includes a decent set of emission factors roughly corresponding to the IPCC Tier 1 GHG emission factors.
Andrés Robles 3/17/2020