In this contribution we take into consideration the effect of ultrasounds on thermal exchange. Since 2008, in the thermofluidynamics laboratory of the DESTeC department basic studies have been performed on this subject. Here, in particular, we move from the investigation of the convective exchange coefficient between a circular cylinder (heated via the Joule effect) and deionized water to a real-life case, where heat is exchanged between transistors and a dielectric fluid. Preliminary experimental data seem to confirm that the presence of ultrasounds induces a significant increase of the convective exchange coefficient in subcooling boiling conditions.
Heat transfer enhancement for cooling electronic boards using ultrasonic waves: preliminary remarks
BARTOLI, CARLO;MACUCCI, MASSIMO
2014-01-01
Abstract
In this contribution we take into consideration the effect of ultrasounds on thermal exchange. Since 2008, in the thermofluidynamics laboratory of the DESTeC department basic studies have been performed on this subject. Here, in particular, we move from the investigation of the convective exchange coefficient between a circular cylinder (heated via the Joule effect) and deionized water to a real-life case, where heat is exchanged between transistors and a dielectric fluid. Preliminary experimental data seem to confirm that the presence of ultrasounds induces a significant increase of the convective exchange coefficient in subcooling boiling conditions.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
