Supervisor:
Southwest Ordnance Industry Bureau
Organizer:
Chongqing Ordnance Industry Society
Chongqing University of Technology
Chongqing University of Technology
Research on self driven heat dissipation system technology for high power electronic devices
| DOI: | 10.11809/bqzbgcxb2024.09.039 |
| Keywords: | liquid metals; self driving; thermoelectric conversion; heat dissipation; high power devices |
| Abstract: | Aiming at the problem that high power heat generating devices such as battery packs, electronic devices and motors in weapons and equipment generate a lot of heat energy during operation, a self driven heat dissipation system is optimally designed, which takes liquid gallium alloy as the medium, recycles the waste heat generated by means of thermoelectric conversion, and then drives the pump of the liquid metal in order to achieve the high efficiency of heat dissipation of the high power devices. Through the simulation and experimental analysis of the system, the results show that the system in the temperature difference of 30 ℃, the output of the thermoelectric module 0.12 W to drive the pump into the working state, the simulation of the temperature of the heat source decreased by 7.6 ℃. When the temperature difference increases to 90 ℃, the output power 1.1 W, liquid metal in the system flow rate of 0.31 m/s, the temperature of the heat source down to 36.2 ℃. The heat dissipation of this system is self starting without external energy supply and control, and the heat dissipation efficiency is 116% higher than that of natural cooling. |
| Published: | 2024-09-30 |