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Messing around with using a PC fan as car exhaust fume extractor. Fun experiment.

AnonymousGuy
By AnonymousGuy
in Cooling
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Posted
48 minutes ago, AnonymousGuy said:

Sent this off for print.  1mm wall thickness on the grid which is as low as I can go on the design rules.  It should mate perfect to the funnel sandwiching the fan.

 

image.png.c97dac1212ec9aca4c53eae1fc092eb4.png

 

I'm excited to see how much of a difference it makes in terms of air guiding.

Please share your results. 

I've been using computers since around 1978, started learning programming in 1980 on Apple IIs, started learning about hardware in 1990, ran a BBS from 1990-95, built my first Windows PC around 2000, taught myself malware removal starting in 2005 (also learned on Bleeping Computer), learned web dev starting in 2017, and I think I can fill a thimble with all that knowledge. 😉 I'm not an expert, which is why I keep investigating the answers that others give to try and improve my knowledge, so feel free to double-check the advice I give.

My phone's auto-correct is named Otto Rong.🤪😂

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Posted
3 hours ago, AnonymousGuy said:

Sent this off for print.  1mm wall thickness on the grid which is as low as I can go on the design rules.  It should mate perfect to the funnel sandwiching the fan.

 

image.png.c97dac1212ec9aca4c53eae1fc092eb4.png

 

I'm excited to see how much of a difference it makes in terms of air guiding.

that should work great!

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  • 4 weeks later...
Posted
  • Author
On 9/14/2023 at 5:10 AM, TeraSeraph said:

that should work great!

 

On 9/14/2023 at 2:20 AM, RevGAM said:

Please share your results. 

Didn't forget about ya, it just took a month to get the printed parts delivered.  Looks like the dude use .1mm layer height cause it's finer than I've seen before.

 

Anyhoo HOLY SHIT does the air guide work a treat.  The videos make it much more obvious than the screenshots here but without the guide the stream breaks up within 18".  With it, it's solid out to 3' easy.

 

(the smoke is burning mineral oil, meant for this type of purpose)
Video without the air guide:
 

image.thumb.png.09329da1aa3e336eaf67fe90284f2ae5.png

Video with the air guide:

image.thumb.png.18e7a544dbe80238d7ad360ce02ddae6.png

 

Turns out I also stumbled on the correct size of the funnel "vents" to not retrict the fan with the engine running.  I measure about 11mph peak speed  on the fan with no restriction, it drops to about 9.7mph with the engine off, and goes back to about 11mph again with the engine on indicating it's full flow.  I don't have a great means of visually showing it, but I can feel the warmth of the exhaust on my hand much further behind the car so it's *throwing* it like I wanted.

image.png.1b99d024d677ab1e6333e4477b1c28ed.pngimage.png.334ca078507717c825124d1fc762cc7a.png

Workstation:  14700nonk || Asus Z790 ProArt Creator || MSI Gaming Trio 4090 Shunt || Crucial Pro Overclocking 32GB @ 5600 || Corsair AX1600i@240V || whole-house loop.

LANRig/GuestGamingBox: 9900nonK || Gigabyte Z390 Master || ASUS TUF 3090 650W shunt || Corsair SF600 || CPU+GPU watercooled 280 rad pull only || whole-house loop.

Server Router (Untangle): 13600k @ Stock || ASRock Z690 ITX || All 10Gbe || 2x8GB 3200 || PicoPSU 150W 24pin + AX1200i on CPU|| whole-house loop

Server Compute/Storage: 10850K @ 5.1Ghz || Gigabyte Z490 Ultra || EVGA FTW3 3090 1000W || LSI 9280i-24 port || 4TB Samsung 860 Evo, 5x10TB Seagate Enterprise Raid 6, 4x8TB Seagate Archive Backup ||  whole-house loop.

Laptop: HP Elitebook 840 G8 (Intel 1185G7) + 3080Ti Thunderbolt Dock, Razer Blade Stealth 13" 2017 (Intel 8550U)

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Posted
5 hours ago, AnonymousGuy said:

 

Didn't forget about ya, it just took a month to get the printed parts delivered.  Looks like the dude use .1mm layer height cause it's finer than I've seen before.

 

Anyhoo HOLY SHIT does the air guide work a treat.  The videos make it much more obvious than the screenshots here but without the guide the stream breaks up within 18".  With it, it's solid out to 3' easy.

 

(the smoke is burning mineral oil, meant for this type of purpose)
Video without the air guide:
 

image.thumb.png.09329da1aa3e336eaf67fe90284f2ae5.png

Video with the air guide:

image.thumb.png.18e7a544dbe80238d7ad360ce02ddae6.png

 

Turns out I also stumbled on the correct size of the funnel "vents" to not retrict the fan with the engine running.  I measure about 11mph peak speed  on the fan with no restriction, it drops to about 9.7mph with the engine off, and goes back to about 11mph again with the engine on indicating it's full flow.  I don't have a great means of visually showing it, but I can feel the warmth of the exhaust on my hand much further behind the car so it's *throwing* it like I wanted.

image.png.1b99d024d677ab1e6333e4477b1c28ed.pngimage.png.334ca078507717c825124d1fc762cc7a.png

Fascinating! Thanks for sharing with us!

I've been using computers since around 1978, started learning programming in 1980 on Apple IIs, started learning about hardware in 1990, ran a BBS from 1990-95, built my first Windows PC around 2000, taught myself malware removal starting in 2005 (also learned on Bleeping Computer), learned web dev starting in 2017, and I think I can fill a thimble with all that knowledge. 😉 I'm not an expert, which is why I keep investigating the answers that others give to try and improve my knowledge, so feel free to double-check the advice I give.

My phone's auto-correct is named Otto Rong.🤪😂

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