Adding fan behind refrigerator...worthwhile??
I have 3 RVs and I seem to be addicted to adding stuff to them....lol. They each have a standard Dometic 2852 absorption refrigerator. They seem to be working as expected. I did replace the cooling...
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SJ-Chris wrote:
Added a 3rd fan and repositioned a few things. Cleaned up the wiring. I'll be taking it out in a week and we'll see how it does. This next trip will only be in ~80 degree weather, so I don't know if the fans will come on often and/or be of much help. The real test will be the next time I am boondocking in 95F+ temps.
These 3 fans will move 15cfm x 3 = 45cfm in theory. Running a test right now in ~94F temps while in storage.
-Chris
Depending on the baffle setup those fans may not make a difference. The normal way to install them is at the top vent sucking out and to insure you have the baffle setup properly around the fins on the heat exchanger to the air is directed through the fins. the reason the top sucking out is more effective is a bunch of laminar airflow and thermal dynamics stuff that would take me fore ever to type but essentially if you baffle the top exchanger section properly and just have one fan drawing out (maybe two depending on the space size) this will direct the air flow over the fins and ensure proper heat exchange. Just using a bunch of fans at the bottom and forcing more air in will force more air through but you're not controlling where you want it or getting a smooth high velocity air flow. you're getting chaotic and slow flow which won't cool as effectively.
