LCA Lab Questions

Question 1

On question 2.C it says to reference table 3.

The unit on table 3 is unclear, however.

"dry Mg^2", what do you mean by that? Mg of Switchgrass? 

And why is Mg squared?

Response

If you’ll look at the bottom of the page you’ll see that the “2” is actually a footnote, not a squared symbol – I agree it’s initially confusing.

Yes it’s referring to dry switchgrass.

Question 2

For herbicide there are two units. Which one do you want me to use?

Response

Both are appropriate since both are required.

 

Question 3

It says, "(grams/dry ton transported)" but it is still category of "(grams of nutrient/dry Mg transported)" 

Response

You’ll have to make a conversion.

 

Question 4

On Labintro file page 9 the instruction is not clear. 

"Table 2 net GHG emissions [gCO2e/L] for extraction, refining, delivery, storage"

Response

This is a slide set by a previous TA included as possibly being helpful.  Refer back to Mr. Long’s info and the main instructions by Dr. Spatari or the Table-2 info in the excel file.