Engineering Asked by Anas Malas on September 8, 2020
I am in the process of designing the enclosure for a small kiosk like project, and intend on having two fans (Noctua NF-A12x25, chosen for their high runtime rating, quietness, as well as other factors). I want to filter the air to prevent dust accumulation over many years of operation, and have tried searching for a way to choose a filter, but I am too inexperienced in this topic and cant seem to find the right keywords.
What I want to know is, given a filter that filters smaller particles, and thus causes more resistance to the air, can "two" of them be placed in "parallel" to increase airflow? is there a limiting factor, or can we possibly use a small fan with a very large strong filter?
My apologies if my question is too basic or if my tags are wrong
For every doubling of the filter area, the flow resistance is cut in half, and the useful lifetime of the filter is doubled. But because your kiosk is so small, just go down to your local hardware store and buy a disposable furnace filter for a home heating system in the smallest size available.
Those filters come in different filtration particle size ratings. The one you want will be the one that takes out the smallest particles. They cost more but are far more effective.
Install the system and run it for several months, then disassemble and inspect the filter to estimate its useful lifetime.
One additional hint: if possible, get you a leaf blower and take it into the kiosk and open up all the windows and doors, and blow that sucker out to get rid of all the accumulated dust in there before you install the filter system!
Answered by niels nielsen on September 8, 2020
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