EFFECT OF SURFACTANT (N - BUTANOL) BEHAVIORS ON SUBCOOLED NUCLEATE POOL BOILING OVER MICROWIRE

The flow and heat transfer characteristics of nanofluid were attracting many researchers during the last two decades. Convection heat transfer in it is especially important for its potential applications. In this investigation, stable self - rewetting fluid was prepared with Copper oxide nanoparticles, deionized water and n - butanol surfactant. The nanopar ticle behaviors near the liquid wedge of bubbles were observed by SEM methodology. The effects of nanoparticle behaviors in this region and the interfacial characteris While n - butanol was included as surfactant which will change the liquid/ vapor interfaci al property, it intensifies the nanoparticle deposition for low heat flux conditions. The analysis shows that the critical heat flux of nanofluid can be obviously improved when n - butanol was included in the nanofluid.tics at the liquid ? vapor interface on convec tion of nanofluid were experimentally investigated.