I think I understand how heat pipes work, and thus the following one has me flummoxed:-
It's from a typical bulk order Chinese web site, but I've seem many similarly contorted arrangements. They are very common in the over clocking /modding community. There is never discussion as to which way the heat sink must be oriented for efficient operation.
My example seems ridiculous. With an U bend in the middle, I don't see how heat sinks like this can evaporate at the hot end and condense at the cold end. Surely the condensate will just pool in the U bend? Even with condensate wicking, it must be easier to wick downwards with gravity than upwards fighting gravity.
Are these types of heat sinks just a con? Overclocking /modding heat sinks are never spec'd with a deg. C /W rating or recommended orientation. This would not do in the engineering world. Can it work equally effectively in any orientation?