started table

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Torsten Ruger 2021-04-17 15:24:22 +03:00
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# fan_control
# Fan Control
Trying to decide which fan to use and how to control it.
# Test
Basic maths says even some 80, but definitely 92mm PC fans should move enough
air in a standard 15m2 room, ie change the room air in 2 hours.
Since lower rpm usually means quieter, we are also testing 120mm.
## List of fans
All tested fans are on the quiet side. Some have it in the name, but they are
all under 20db under full load. Some have pwm control built in, which i am
thinking is less relevant than i thought.
In my setup i am testing with a Pi Pico and measuring with a **telephone**,
from about 50cm and 2m. So not too accurate.
15m2 at 2.5 m height is about 20m3 / h for compliance.
Fan | mm | V | mI | Wire | rpm | m3 | db | 50cm | 2m | Notes
---------|------|-----|-----|------|------|-----|----|------|-----|-----
Zephyr | 60 | 12 | 110 | 3 | 2000 | 17 | 18 | 50cm | 2m | Notes
Zephyr | 80 | 12 | 160 | 3 | 1400 | 47 | 14 | 50cm | 2m | Notes
Zephyr | 92 | 12 | 140 | 3 | 1300 | 57 | 14 | 50cm | 2m | Notes
Zephyr | 120 | 12 | 180 | 4 | 1400 | 81 | 15 | 50cm | 2m | Notes
# Decisions