Visualization of Vaper Bubble on Saturation Pool Boiling Heat Transfer from a Horizontal Cylinder

Pool boiling heat transfer from a horizontal wire to distilled water is studied under an atomospheric pressure condition. The horizontal wire is made of platinum. Diameter an length of the wire are 0.8 mm and 61.7 mm respectively. The horizontal wire is heated by a D.C. electric power source. Vaper bubbles on horizontal wire is photographed by a frash(25μs) of storoboscope. Vaper bubbles of nucleate boiling regime, critical heat flux point and film boining regime are visualized.