File:HEPA_Filter_diagram_en.svg
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Summary
DescriptionHEPA Filter diagram en.svg |
English: Diagram showing the main parts of a HEPA filter on the large diagram; its operation is shown on the 3 smaller diagrams:
On the 100 nm to 1-micron scales that are the most challenging for filters, it is helpful to think of air as a viscous fluid like molasses. As the fluid flows through the filters, particles are carried around the fibers of the filter medium, for the most part. Inertial impaction: Larger particles (>1 micron) may be massive enough to continue to move in nearly a straight line (Newton's Law), as the flow is diverted around a fiber. Interception: Smaller particles are not much affected by inertia, but, if they are carried within one particle radius of the fiber, they will be intercepted by it. Diffusion: Still smaller particles (<100 nm) move randomly among streamlines as they are buffeted by collisions with molecules. A particle along a streamline that approaches a fiber very closely may be knocked against the fiber by such a collision. English: This image was created as part of the Philip Greenspun illustration project. |
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Source | Did myself using this sources: [1], [2], [3], [4], [5], [6], [7], [8], [9]. | |||
Author | LadyofHats | |||
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13 August 2008
File history
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 18:41, 19 March 2019 | 607 × 544 (343 KB) | দিব্য দত্ত | Reverted to version as of 02:11, 25 February 2013 (UTC) | |
18:40, 19 March 2019 | 607 × 544 (316 KB) | দিব্য দত্ত | Trying to remove a blue block near the word "প্ৰৱাহ" | ||
02:11, 25 February 2013 | 607 × 544 (343 KB) | Ysangkok | scour | ||
08:06, 1 September 2008 | 607 × 544 (395 KB) | LadyofHats | corrected particle size, aded average size of particles and trajectory on difuccion | ||
21:55, 15 August 2008 | 607 × 544 (384 KB) | LadyofHats | darker text | ||
21:17, 14 August 2008 | 607 × 544 (384 KB) | LadyofHats | this is a corrected version of the original | ||
21:16, 14 August 2008 | 607 × 544 (320 KB) | LadyofHats | THID VERSION CONTAINS LABELS AS TEXT! | ||
16:01, 13 August 2008 | 607 × 544 (382 KB) | LadyofHats | {{Information |Description=diagram showing the main parts of a HEPA filter and the way it works. |Source=Did myself using this sources: [http://people.seas.harvard.edu/~jones/lab_arch/nano_facilities/hepa.gif], [http://www.sage-earth-sciences.com/hepa/clo |
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Width | 607.3 |
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Height | 544 |