Experimental Investigation of Explosive Boiling Organic Liquids by Measuring the Laser Intensity Reflected on Microbubbles

In this paper the experimental study was made for explosive boiling of liquids under pulsed heating. Experimentally obtained patterns for explosive boiling of organic liquids (ethylene glycol, octane) with the help of optical method measuring the laser intensity reflected from the microheater surface. A multi-layered thin film heater was used in experiments as microheater manufactured by Hewlett Packard technology, with size 100 × 110 mcm. The data of dynamics boiling shown that high heat flux density provide the conditions for the phase explosion whose properties was studied experimentally, including the history of surface vapor covering, nucleation time and the lifetime of the main bubble.

Keywords:
MEMS technology, explosive boiling of liquid. 
УДК 532.529

Experimental Investigation of Explosive Boiling Organic Liquids by Measuring the Laser Intensity Reflected on Microbubbles