Time to replace defective and potentially dangerous absorption fridge

[gondolaguy]

Generally heat transfer increases with velocity. This is definitely true for the case of natural or forced (with a fan) convection of air on a heat exchanger.
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I believe that's to a point. Beyond that point, you're moving the air too fast to get adequate transfer. I know that is the case with a radiator in a vehicle. Move the water too fast through it and it will overheat. You need at least a restrictor plate in the thermostat housing, in place of the thermostat, to prevent such a condition.


Now, do two 4" fans move too much air? I don't know, but I would at least be suspect, especially when placed right at the inferior edge of the coils.


jm02. Carry on!
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Your comparison of air over the hot coils versus water through a radiator seems like apples and oranges. The water pump is pushing the coolant out to the radiating surface whereas in this case the air is passing over the radiating surface and the more the better. It would be like saying that cooling the radiator slowed down at some speed where too much air was passing through it.