EXPERIMENTAL-STUDY OF HEAT-TRANSFER IN POOL BOILING OF LIQUIDS

An experimental investigation has been carried out to study the effect of some important parameters on nucleate pool boiling of three single components (distilled water, ethanol and cyclohexane) and a multicomp onent system, kerosene at atmospheric pressure. The heat transfer surf ace was a horizontal stainless steel tube of 31.9 mm o.d. with an effe ctive area of 1.59 x 10(-2) m(2). Heating of the test section was done by an electric heater placed inside the tube. The heat flux was varie d in steps from 2.51 to 32.67 KW/m(2). The effect of heat flux on heat transfer coefficient has been discussed. The experimental data for al l the test liquids was best correlated by a general correlation in ter ms of dimensionless groups.