EXPERIMENTAL STUDY OF WATER VAPOUR CONDENSATION ON A ROTATING DISC

摘要

Condensation of saturated low pressure water vapour on the bottom side of a smooth surface horizontal aluminium spinning disc was studied experimentally. Results of the heat flux on the disc as a function of the wall superheat and the speed of rotation show that the mean heat transfer coefficient varies from 10 kW/m(2)K at 0 rpm to 30 kW/m(2)K at 1000 rpm in the low heat flux range and from 6 kW/m(2)K at 0 rpm to 20 kW/m(2)K at 1000 rpm in the high heat flux range. The local heat transfer coefficient does not change with radius. [References: 14]