Traditional pulsating heat pipe with fewer turns is functional only when the heat source is placed at the bottom while the heat sink is on top. This study proposes a novel design having alternative double-pipe tube diameter with some extra open connections of these double-pipes. By introducing extra un-balanced pressure force, capillary force and gravity force, the PHP can be easily starting up even for an opposite heat source/sink arrangement while the conventional single tube design fails to start up with this opposite arrangement. The thermal resistance of double pipe PHP can be lowered to 0.0729 W/K with an effective thermal conductivity of 12,603 W/m·K when the heat source is placed on top. Yet the thermal resistance for the proposed double pipe design is only half of the single tube design.
|Number of pages||5|
|Journal||Applied Thermal Engineering|
|State||Published - 5 Aug 2016|
- Pulsating heat pipe
- Thermal resistance