Forum Discussion
landyacht318
Jun 13, 2018Explorer
My fridge is a 12v compressor fridge. its condenser looks like a car radiator and is designed to accept a 120MM fan.
The fan it came with was rated at some 72CFM and was mounted to pull air through this condenser. It was louder than the compressor.
I removed this fan, and installed a Noctua NF-F12, the 1500 rpm version. I installed it to push air through the restriction, as this fan was designed and engineered to do.
The duty cycle of my fridge dropped by about 40 seconds esch time it cycled on, and the Noctua fan draws 0.05 amps, vs the 0.12 amps of the fan that came mounted on the compressor. The Noctua fan is also much quieter. The performance improvement was significant with this much better fan pushing air, instead of some sleeve bearing fan pulling air.
More recently I got the Noctua a12x15 fan and mounted that to my condenser. It reportedy outperforms two NF-f12's in a push pull configuration. Its thinner design also allows more room behind the impeller for it to scavenge cool air and push it through the condenser, once as i designed my fridge ventilation system so that it canot recycle air it itself has heated
I did not bother conducting duty cycle data, but this A12x15 is even quieter, and I moved the NF-f12 to exhaust my electrical cabinet, and depending on a few options, I can have the NF-f12 also pull cool filtered air through the condenser. At just 0.05 amps I let it run 24/7/365 though I could easily have it activated to come on with my fridge compressor as the compressor controller allows for fans of upto 0.5 amps. It could power 10 NF-f12's and move 530 CFM for that 0.5 amps.
Inside my fridge I have a Sunon 0.03 amp 40x15Mm fan running 24/7/365. One does not require large CFM numbers for internal fridge fans. This fan allows me to use a lower (~ 2.3 out of 7) setting on the fridge and maintain a very even internal temperature( 33.5f), though it does not reduce the amount of electricity the fridge uses.
Without the internal fan I need to bump it up close to 4 of 7, and the floor will be 28.8 degrees and the warmest spot in the fridge will be close to 41F.
The fan it came with was rated at some 72CFM and was mounted to pull air through this condenser. It was louder than the compressor.
I removed this fan, and installed a Noctua NF-F12, the 1500 rpm version. I installed it to push air through the restriction, as this fan was designed and engineered to do.
The duty cycle of my fridge dropped by about 40 seconds esch time it cycled on, and the Noctua fan draws 0.05 amps, vs the 0.12 amps of the fan that came mounted on the compressor. The Noctua fan is also much quieter. The performance improvement was significant with this much better fan pushing air, instead of some sleeve bearing fan pulling air.
More recently I got the Noctua a12x15 fan and mounted that to my condenser. It reportedy outperforms two NF-f12's in a push pull configuration. Its thinner design also allows more room behind the impeller for it to scavenge cool air and push it through the condenser, once as i designed my fridge ventilation system so that it canot recycle air it itself has heated
I did not bother conducting duty cycle data, but this A12x15 is even quieter, and I moved the NF-f12 to exhaust my electrical cabinet, and depending on a few options, I can have the NF-f12 also pull cool filtered air through the condenser. At just 0.05 amps I let it run 24/7/365 though I could easily have it activated to come on with my fridge compressor as the compressor controller allows for fans of upto 0.5 amps. It could power 10 NF-f12's and move 530 CFM for that 0.5 amps.
Inside my fridge I have a Sunon 0.03 amp 40x15Mm fan running 24/7/365. One does not require large CFM numbers for internal fridge fans. This fan allows me to use a lower (~ 2.3 out of 7) setting on the fridge and maintain a very even internal temperature( 33.5f), though it does not reduce the amount of electricity the fridge uses.
Without the internal fan I need to bump it up close to 4 of 7, and the floor will be 28.8 degrees and the warmest spot in the fridge will be close to 41F.
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