PROCEDURE:EXPERIMENT 2: THE FILMWISE HEAT FLUX AND SURFACE HEAT TRANSFER COEFFICIENT DETERMINATION AT CONSTANT PRESSURE Cooling water was circulated through the filmwise condenser starting with a minimum value of 0.1 LPM. The heater power was adjusted to obtain the desired pressure at 1.01 bar. The steam (Tsat) & surface temperature (Tsurf), Tin (T1) & Tout (T2) and flowrate was recorded when the condition was stabilized.

EXPERIMENT 3: THE DROPWISE HEAT FLUX AND SURFACE HEAT TRANSFER COEFFICIENT DETERMINATION AT CONSTANT PRESSURE Cooling water was circulated through the filmwise condenser starting with a minimum value of 0.4 LPM. The heater power was adjusted to obtain the desired pressure at 1.01 bar. The steam (Tsat) & surface temperature (Tsurf), Tin (T3) & Tout (T4) and flowrate was recorded when the condition was stabilized

EXPERIMENT 4: THE EFFECT OF AIR INSIDE CHAMBER Cooling water was circulated through the filmwise condenser at the highest flowrate until the pressure is reduced to below 1 bar. Discharge valve was open and certain amount of air was let to enter the chamber. The water flow rate was regulated to the condenser starting with a minimum value of 0.1 LPM. The heater was adjust to obtain the desired pressure at 1.01 bar. The steam (Tsat) & surface temperature (Tsurf), Tin (T1) & Tout (T2) and flowrate was recorded when the condition was stabilized. The step 1-6 was repeated for dropwise condensation.