Development of one-side actuating liquid cooling diaphragm micropump for a multimedia system

Author

Ma, H.K. ; Luo, W.F. ; Su, H.C.

Author_Institution

Dept. of Mech. Eng., Nat. Taiwan Univ., Taipei, Taiwan

fYear

2011

fDate

26-28 July 2011

Firstpage

6307

Lastpage

6310

Abstract

An innovative one-side actuating piezoelectric micropump (OAPCP-micropump), which is combined with a 45 mm × 28 mm × 4 mm cold plate chamber, has been developed to drive liquid in a cooling system for a laptop. The results show that the shape and the numbers of the fins inside the cold plate chamber have strong effects on the pressure drops and flow profiles. The fluid in the pump chamber may impinge on the fins and increase the heat dissipation rate due to the oscillation by the actuator. The measured maximum flow rate of the OAPCP-micropump is 4.1 ml/s, and its maximum pump head reaches 9807 Pa. The new cooling system with an OAPCP-micropump design shows a stable performance on total thermal resistance due to the high flow rate.

Keywords

computational fluid dynamics; cooling; diaphragms; mechanical engineering computing; micropumps; multimedia systems; piezoelectric actuators; thermal resistance; OAPCP-micropump; actuator; cold plate chamber; cooling system; flow profile; flow rate; heat dissipation rate; multimedia system; one-side actuating liquid cooling diaphragm micropump; one-side actuating piezoelectric micropump; oscillation; pressure drop; pump chamber; thermal resistance; Actuators; Frequency modulation; Liquid cooling; Micropumps; Valves; cooling; laptop; liquid; micropump; piezoelectric; thin;

fLanguage

English

Publisher

ieee

Conference_Titel

Multimedia Technology (ICMT), 2011 International Conference on

Conference_Location

Hangzhou

Print_ISBN

978-1-61284-771-9

Type

conf

DOI

10.1109/ICMT.2011.6002096

Filename

6002096