Effect of heating boundary conditions on pool boiling experiments

The two widely used experimental methods for pool boiling experiments are e valuated. Boiling heat transfer data employing either the water heating or the electric heating method obtained by various researchers are compared an d discussed. The electric heating method is a constant heat pur process, wh ile the water heating method represents a pseudo-exponential temperature pr ofile for the heating water along the tube. It is concluded that the temper ature profile along the tube is the major cause of the difference between r esults from the two methods. The parameters that shape the temperature prof ile and cause differences are discussed.