The evaluation of heat-transfer cooling performance of PDMS/glass composite lamination interfaced with microfluidic pinnate-like flowpaths

Abstract

Abstract.n this paper we present the evaluation results of solar thermal cooling performance of PDMS/glass composite lamination in which the microfluidic flowpaths have been fabricated on the interface between PDMS and glass. The microfluidic flowpaths was designed into pinnate-like and its pattern was transferred onto the surface of PDMS piece through UV flatbed-printer and soft molding, then plasma bonded onto glass, forming PDMS/glass compound window with an area of 10×8 cm 2 . The temperature distribution of thus-made device was monitored with IR imager and thermal-couple when DI water with different flow-rates was forced flowing into and out. The results show that this pinnate-like PDMS/glass microfluidic device could significantly realize good heat-transfer, when it was exposed to environmental temperature higher up to 38ºC, the outlet temperature of the flowing water at 5 mL/min could be reduced by 8~10ºC when the inlet flowing water was given at room temperature.