Main Tasks:
Fan Selection and Cooling
Adhesive Selection
Board Mount
Things happening soon
Fan testing with wind tunnel
Talking to Micah
Fan Selection and Cooling
Basics (more or less):
The PQ Curve is a characteristic of the fan. It shows the relationship between the airflow that the fan provides (in units of CFM or cubic feet/minute) and the static pressure is how much air pressure the fan creates in the system, intuitively we can see it as how “hard” the fan “pushes” the air.
There is another line/curve that is the Load Curve, also called the System Impedance Curve, or the System Characteristic Curve. It is a characteristic of the system where air is flowing. So our battery box with 9 modules would produce some Load Curve, and another box with only 2 modules would also produce some Load Curve.
The intersection point between the Load Curve and the PQ Curve provides the “operating point” of the fan. That is, the actual airflow and static pressure of the fan in that system. Actually trying to figure out how a fan will act in a system without any testing is kind of impossible as a result. Any fan can technically give the load curve, but if you get the load curve with an absurdly different fan it might not be so applicable.
Why airflow - static pressure testing and not just straight up temperature testing? Because even if you get some graph of the temperature based on the airflow, you can’t really extrapolate that on to how much temperature will be removed with more modules because the airflow itself is going to change based on the added modules.
List of Fans We Want to Test:
Noctua NF-F12 IPPC 3000 120mm https://noctua.at/en/nf-f12-industrialppc-3000-pwm
Noctua 80mm $21.11 crid=223FQ9UUG3JJS&keywords=noctua+fans+80mm&qid=1688164914&sprefix=noctua+fans+80mm%2Caps%2C78&sr=8-4
Arctic Fan F8 80mm
Phanteks 120mm ($34.99), outperformed Noctua 120mm fans (wait for Michael’s response in terms of budget): https://www.amazon.ca/Phanteks-PH-F120T30_BG_3P-Triple-Pack-high-Performance-Excellent/dp/B09B2LNFV4?tag=hardwar06-20&geniuslink=true
Noctua NF-A9 PWM 92mm https://noctua.at/en/nf-a9-pwm