{[ promptMessage ]}

Bookmark it

{[ promptMessage ]}

Scrubber - Particulate Scrubbers Reading Chap 7 Types of...

Info iconThis preview shows pages 1–8. Sign up to view the full content.

View Full Document Right Arrow Icon
9/13/11 Aerosol & Particulate Research Lab 11 Particulate Scrubbers Types of scrubbers: spray chamber and venturi scrubber Theory and design consideration Pressure drop Contacting power Reading: Chap. 7 www.wpclipart.com/weather/happy_rain_cloud.png
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
9/13/11 Aerosol & Particulate Research Lab 22 Spray Chamber Recirculated water Water to settling basin and recycle pump Vertical spray chamber (countercurrent flow) Collecting medium: Liquid drops Wetted surface Q: What parameters will affect the collection efficiency? Q: Any other arrangement of air & water?
Background image of page 2
9/13/11 Aerosol & Particulate Research Lab 33 Q: Is the gas velocity of any concern? Is droplet size important?
Background image of page 3

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
9/13/11 Aerosol & Particulate Research Lab 44 Cyclone Spray Chamber & Impingement Scrubber Flagan & Seinfeld, Fundamental of Air Pollution Engineering , 1988 Q: Is used water recirculated?
Background image of page 4
9/13/11 Aerosol & Particulate Research Lab 55 Venturi Scrubber Handbook of Air Pollution Control Engineering & Technology, Mycock, McKenna & Theodore, CRC Inc. , 1995. High efficiency even for small particles Q: ESP for sticky, flammable or highly corrosive materials? QL/QG: 0.001 - 0.003 VG: 60 - 120 m/s
Background image of page 5

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
9/13/11 Aerosol & Particulate Research Lab 66 Theory: Spray Chamber Droplet concentration in the chamber d c d L d c d d V A d Q V A N n 3 6 π = = Vd : droplet falling velocity relative to a fixed coordinate Vtd : droplet terminal settling velocity in still air (i.e. relative to the gas flow) Volume of each droplet 3 6 d d d π υ = Total number of droplets that pass the chamber per second 3 3 6 6 d L d L d L d d Q d Q Q N π π υ = = = Vt d V G V d G td d V V V - = QL : volumetric liquid flow rate
Background image of page 6
9/13/11 Aerosol & Particulate
Background image of page 7

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
Image of page 8
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}