SternWake
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- Nov 30, 2013
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I am a bit of a ventilation Nazi. I've got computer fans everywhere. 2 counter rotating fans inline on the ceiling for exhausting, 3 fans in a side window for intake. 2 fans on goose necks on a 2 inch spring clamps positionable anywhere within, for internal air movement, One on my fridge, one exhausting the fridge/electronics cabinet. And, just to prove I am a ventilation Nazi, I ran 8 AWG cable to my new Hvac blower motor, and the thing now moves more air on medium high speed than it did on high speed before.
I've found the most convenient computer fans are the ones with built in speed controllers.
Not many Fans have this function built in.
The Silverstone fm121 has been a favorite of mine for many years now. Upto 110CFM at 0.4 amps and down to 33CFM at 0.08a
A newer acquisition, has been the Silverstone AP182 which also has a speed controller and can move some serious Air at full speed and is practically silent on its slowest speed.
I use this as an intake fan in front of my conversion van sliding window. I put 3 fans on a shroud for positive air displacement, and it is rare that it is so hot, that i need to turn on all 3 fans. The AP182 pretty much runs 24/7 even when cool out. It draws only 0.05a on the slowest speed.
When i have my windows blocked off, and the fans on, my interior is almost never hotter than outside, late afternoon being the exception.
I just saw Silverstone came out with a new slimmer design 180MM fan with adjustable speed control, and it is a reasonable price on Amazon of 16$.
I would certainly have bought this fan instead of the AP182, as it claims a marginally higher CFM at max speed as well as having a lower amp draw at max speed by over 50%. 171 CFM for 0.54 amps is impressive!
http://www.silverstonetek.com/product.php?pid=532
http://www.amazon.com/SilverStone-T...d=1432266269&sr=8-37&keywords=silverstone+fan
The AP 182 I employ, was 26$ and draws significantly more amperage at high speed( 1.3a). Its hub also gets way too hot at high speed at battery charging voltages. I use a voltage limiter to keep voltages under 12 to the fan, which does limit maximum speed( and amp consumption).
http://www.silverstonetek.com/product.php?pid=344
The Ap 182's steering vanes make the airflow out straight in front of the fan in a dense column of air. It appears the fans without these steering vanes move air outward at steeper wider angles. So the Ap 182 can be used and Aimed internally more effectively, but if just exhausting Air or used as an intake the FM182 takes half the electricity to move as much air, and is just 0.04amps at its slowest speed.
Anyway, it is that time of year, and both high CFm ratings and low electrical consumption ratings and adjustable speed built into the fan controller, make these fans winners.
If one wants to incorporate speed control into computer fans they already employ:
http://www.amazon.com/KEDSUM®-Conve...9&sr=8-14&keywords=pwm+motor+speed+controller
If the hub of the FM182 gets too hot at high speed, and voltage limiting is required, I use this one which has a voltage display:
http://www.amazon.com/Switching-Reg...267654&sr=8-2&keywords=voltage+buck+converter
But I also own smaller less expensive versions without the voltage display. One needs a separate voltmeter to set the desired output voltage:
http://www.amazon.com/s/ref=nb_sb_noss?url=search-alias=aps&field-keywords=LM2596
These can also be used as speed controllers, but one has to bust out a tiny jeweler's screwdriver to adjust speed, rather than grab a Knob and turn it.
Stay cool, Dwellers.
I've found the most convenient computer fans are the ones with built in speed controllers.
Not many Fans have this function built in.
The Silverstone fm121 has been a favorite of mine for many years now. Upto 110CFM at 0.4 amps and down to 33CFM at 0.08a
A newer acquisition, has been the Silverstone AP182 which also has a speed controller and can move some serious Air at full speed and is practically silent on its slowest speed.
I use this as an intake fan in front of my conversion van sliding window. I put 3 fans on a shroud for positive air displacement, and it is rare that it is so hot, that i need to turn on all 3 fans. The AP182 pretty much runs 24/7 even when cool out. It draws only 0.05a on the slowest speed.
When i have my windows blocked off, and the fans on, my interior is almost never hotter than outside, late afternoon being the exception.
I just saw Silverstone came out with a new slimmer design 180MM fan with adjustable speed control, and it is a reasonable price on Amazon of 16$.
I would certainly have bought this fan instead of the AP182, as it claims a marginally higher CFM at max speed as well as having a lower amp draw at max speed by over 50%. 171 CFM for 0.54 amps is impressive!
http://www.silverstonetek.com/product.php?pid=532
http://www.amazon.com/SilverStone-T...d=1432266269&sr=8-37&keywords=silverstone+fan
The AP 182 I employ, was 26$ and draws significantly more amperage at high speed( 1.3a). Its hub also gets way too hot at high speed at battery charging voltages. I use a voltage limiter to keep voltages under 12 to the fan, which does limit maximum speed( and amp consumption).
http://www.silverstonetek.com/product.php?pid=344
The Ap 182's steering vanes make the airflow out straight in front of the fan in a dense column of air. It appears the fans without these steering vanes move air outward at steeper wider angles. So the Ap 182 can be used and Aimed internally more effectively, but if just exhausting Air or used as an intake the FM182 takes half the electricity to move as much air, and is just 0.04amps at its slowest speed.
Anyway, it is that time of year, and both high CFm ratings and low electrical consumption ratings and adjustable speed built into the fan controller, make these fans winners.
If one wants to incorporate speed control into computer fans they already employ:
http://www.amazon.com/KEDSUM®-Conve...9&sr=8-14&keywords=pwm+motor+speed+controller
If the hub of the FM182 gets too hot at high speed, and voltage limiting is required, I use this one which has a voltage display:
http://www.amazon.com/Switching-Reg...267654&sr=8-2&keywords=voltage+buck+converter
But I also own smaller less expensive versions without the voltage display. One needs a separate voltmeter to set the desired output voltage:
http://www.amazon.com/s/ref=nb_sb_noss?url=search-alias=aps&field-keywords=LM2596
These can also be used as speed controllers, but one has to bust out a tiny jeweler's screwdriver to adjust speed, rather than grab a Knob and turn it.
Stay cool, Dwellers.