To calculate the project emissions $PE_y$, we will substitute the given values into the provided formula:

$PE_y = \sum_{j,x} FC_{j,x,y} \times NCV_j \times EF_{\text{CO}_2,j}$

Given values are:

• $FC_{j,x,y} = 142,976 \, \text{m}^3$
• $NCV_j = 37 \, \text{MJ/m}^3$
• $EF_{\text{CO}_2,j} = 0.055 \, \text{tCO}_2/\text{MJ}$

Substituting these into the formula:

$PE_y = 142,976 \, \text{m}^3 \times 37 \, \text{MJ/m}^3 \times 0.055 \, \text{tCO}_2/\text{MJ}$

Now, let's perform the calculation:

$PE_y = 142,976 \times 37 \times 0.055$The total project emissions $PE_y$ are $290,956.16 \, \text{tCO}_2$ per year.

Do you want more details or have any questions about this calculation?

Here are some related questions to consider:

1. How would the project emissions change if the net calorific value $NCV_j$ increased?
2. What impact does a change in the CO₂ emission factor $EF_{\text{CO}_2,j}$ have on the overall emissions?
3. How does the emissions calculation change if there are multiple types of fuels ($j$) used in the project?
4. How can we reduce the project emissions based on this formula?
5. What other greenhouse gases besides CO₂ might need to be considered in a comprehensive emissions analysis?

Tip: Always check the units of the input values to ensure they are consistent with the formula requirements!