Homework Question: required reductions in SO2 and PM10

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Discussion Overview

The discussion revolves around a homework question concerning the assessment of air pollution control needs for a new coal-fired power plant. Participants are tasked with determining the required reductions in SO2 and PM10 emissions to comply with the National Ambient Air Quality Standards (NAAQS) and New Source Performance Standards (NSPS), as well as calculating the minimum distance the plant must be located from residential structures. The scope includes conceptual understanding and application of environmental regulations in engineering contexts.

Discussion Character

  • Homework-related
  • Exploratory

Main Points Raised

  • Participants express uncertainty about how to begin solving the problem, with some indicating they have no idea where to start.
  • One participant suggests starting by calculating the electricity produced to derive the SO2 and PM10 emission rates.
  • Another participant encourages looking up relevant definitions and formulas related to the abbreviations and standards mentioned in the problem.
  • There is a suggestion to focus on the specific questions posed at the end of the problem to guide the approach.
  • Participants are encouraged to share their calculations and approaches as they progress.

Areas of Agreement / Disagreement

Participants generally agree that the problem requires a structured approach to identify relevant emissions levels and calculations, but there is no consensus on the specific methods to begin solving the problem.

Contextual Notes

Participants have not provided specific equations or methodologies for calculating emissions reductions, and there is a lack of clarity on the definitions of the abbreviations used in the problem.

zombie1985
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Wrong place to post this. I apologize. I found the HW sectionHello 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
 
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Homework Statement


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

Homework Equations


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

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.
 
welcome to pf!

hi zombie1985! welcome to pf! :wink:

show us what you've tried, and where you're stuck, and then we'll know how to help! :smile:
 
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.
 
zombie1985 said:
Have no idea how to attempt or where to begin.
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.
 
hi zombie1985! :smile:

(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 …
zombie1985 said:
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

so from the question, you need to start by deciding what the SO2 and PM10 levels should be :wink:

and then you can find the actual level by (as you say) figuring out the electricity produced etc :smile:
 
Thanks Tiny,
I am currently working on it. Once I get somewhere, I will post my calculations and approach here.
 

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