Critical heat flux describes the thermal limit of a phenomenon where a phase change occurs during heating which suddenly decreases the efficiency of heat transfer. The understanding of CHF phenomenon is important for safe and economic design of many heat transfer units including nuclear reactors, fossil fuel boilers, fusion reactors, electronic chips, etc.
The experiment is designed to illustrate the characteristics of the boiling phase change phenomenon. It involves observing the rate of boiling of a saturated liquid on the surface of a submerged hot wire object and measuring the variation of the object temperature with time.
The objective of this experiment is to observe the regimes of nucleate, transition, and film boiling in a pool of saturated liquid, to determine the rate of boiling, and to construct the boiling curve.