# Homework Question: required reductions in SO2 and PM10

1. Apr 10, 2013

### zombie1985

Wrong place to post this. I apologize. I found the HW section

Hello All, I need to figure out how to solve this question really fast. I appreciate your help in advance. Also new to this, so if i posted this to wrong section I apologize in advance.

You are an engineer hired to assess the air pollution control needs of a new coal fired
power plant. The power plant is to be operated in a region where the same company operates several other coal fired power plants that were all built in the 1960s. The new power plant is planned to have 500 MW energy generating capacity. The next largest plant is 50 MW and each is emitting pollution at least twice the NSPS. Based on the design the power plant is planned to have a raw pollution rate of 4 times the NSPS for SO2 and 10 times the NSPS for PM10. To make things worse the region where this plant is to be built is already in non attainment for PM10 having a 24-hour mean concentration of 200μg/m^3. Also, local laws don't allow the local 24-hour average ground level concentration of PM10 to exceed twice the NAAQS levels at any residential structure, given a normal atmospheric class C and an average wind speed of 2.5m/s.

1) Determine the required reductions in SO2 and PM10 to be compliant with NAAQS and NSPS, and ultimately comply with the clean air act.

2) Determine the minimum distance the plant must be located away from any residential structure

Last edited: Apr 10, 2013
2. Apr 10, 2013

### zombie1985

Urgent help on a Question!!

1. The problem statement, all variables and given/known data
Hello All, I need to figure out how to solve this question really fast. I appreciate your help in advance. Also new to this, so if i posted this to wrong section I apologize in advance.

You are an engineer hired to assess the air pollution control needs of a new coal fired
power plant. The power plant is to be operated in a region where the same company operates several other coal fired power plants that were all built in the 1960s. The new power plant is planned to have 500 MW energy generating capacity. The next largest plant is 50 MW and each is emitting pollution at least twice the NSPS. Based on the design the power plant is planned to have a raw pollution rate of 4 times the NSPS for SO2 and 10 times the NSPS for PM10. To make things worse the region where this plant is to be built is already in non attainment for PM10 having a 24-hour mean concentration of 200μg/m^3. Also, local laws don't allow the local 24-hour average ground level concentration of PM10 to exceed twice the NAAQS levels at any residential structure, given a normal atmospheric class C and an average wind speed of 2.5m/s.

1) Determine the required reductions in SO2 and PM10 to be compliant with NAAQS and NSPS, and ultimately comply with the clean air act.

2) Determine the minimum distance the plant must be located away from any residential structure

2. Relevant equations
No Relevant Equation, it's figure out on your own project type question.

3. The attempt at a solution
Have no idea how to attempt or where to begin.

I'm just looking for help on how to begin this problem after that I can figure it out.

3. Apr 10, 2013

### tiny-tim

welcome to pf!

hi zombie1985! welcome to pf!

show us what you've tried, and where you're stuck, and then we'll know how to help!

4. Apr 10, 2013

### zombie1985

Hey Tiny-tim,
Thanks for replying. I just don't know where to begin :(. I just need help to figure how should I go about doing this problem/where to begin. I was thinking I can start off by figuring out the electricity produced and from there somehow figure out the S emission rate and particulate rate? Please let me know if my approach is wrong and if you have any suggestions.

5. Apr 10, 2013

### Staff: Mentor

You could look up all the abbreviations, their definitions, the formulas how they are calculated, and so on.
If you know them already: great! You can post them here.

6. Apr 11, 2013

### tiny-tim

hi zombie1985!

(just got up :zzz:)

generally, when there's a lot of facts, and you're not sure which ones are relevant, start by looking at the actual question at the end …
so from the question, you need to start by deciding what the SO2 and PM10 levels should be

and then you can find the actual level by (as you say) figuring out the electricity produced etc

7. Apr 13, 2013

### zombie1985

Thanks Tiny,
I am currently working on it. Once I get somewhere, I will post my calculations and approach here.