Pool boiling experiments on modified heterogeneous wetting surfaces with Teflon dots

Boiling phenomena has been used as a main heat transfer mechanism to transfer heat energy in many heat transfer systems and apparatuses. In boiling phenomena, there are two important performance parameters: Boiling heat transfer (BHT) and critical heat flux (CHF). Of two parameters, CHF, which is directly related with the safety of systems, will be mainly studied in this article. Via challengeable recent boiling experiments, the effect of heating surface was focused in boiling mechanism. In this regard, we conducted the pool boiling experimental study by using the modified surfaces with locally treated heterogeneous wetting surfaces to understand the basic mechanism between the occurrence of CHF and local heating surface condition