×
INTELLIGENT WORK FORUMS
FOR ENGINEERING PROFESSIONALS

Log In

Come Join Us!

Are you an
Engineering professional?
Join Eng-Tips Forums!
  • Talk With Other Members
  • Be Notified Of Responses
    To Your Posts
  • Keyword Search
  • One-Click Access To Your
    Favorite Forums
  • Automated Signatures
    On Your Posts
  • Best Of All, It's Free!
  • Students Click Here

*Eng-Tips's functionality depends on members receiving e-mail. By joining you are opting in to receive e-mail.

Posting Guidelines

Promoting, selling, recruiting, coursework and thesis posting is forbidden.

Students Click Here

Jobs

Stack Opacity Affected By Rain

Stack Opacity Affected By Rain

Stack Opacity Affected By Rain

(OP)
Hello.  I work in a coal-burning power plant.  We have noticed that during a couple heavy downpours recently, our stack opacity has gone up significantly for short periods and then returned to normal.  The opacity meter is situated about half way up our stack.  Can anyone offer suggestions why heavy rain would cause these erroneous readings?

RE: Stack Opacity Affected By Rain

Well, let's see.  You have heavy rain falling straight down (I have to assume straight down) through a dust and/or moisture laden atmosphere being monitored by a device that looks through whatever is in between the sensors.

Could it be that the addition of the presence and density of the rain droplets, dirty or not are being detected by the opacity monitor and registered?

rmw

Red Flag This Post

Please let us know here why this post is inappropriate. Reasons such as off-topic, duplicates, flames, illegal, vulgar, or students posting their homework.

Red Flag Submitted

Thank you for helping keep Eng-Tips Forums free from inappropriate posts.
The Eng-Tips staff will check this out and take appropriate action.

Reply To This Thread

Posting in the Eng-Tips forums is a member-only feature.

Click Here to join Eng-Tips and talk with other members!


Resources