Condensation process Measurement of heat transfer in dropwise and film condensation Features - visualisation of different condensation processes Learning objectives/experiments - dropwise and film condensation - determination of the heat transfer coefficient - effect of pressure, temperature and non-condensable gases on the heat transfer coefficient Specification [1] visualisation of the condensation process of water in a transparent tank [2] two water-cooled tubes as condensers with different surfaces to realise film condensation and dropwise condensation [3] controlled heater to adjust the boiling temperature [4] water jet pump to evacuate the tank [5] pressure switch and safety valve for safe operation [6] sensors for temperature, pressure and flow rate with digital display [7] GUNT software for data acquisition via USB under Windows 10 Technical data Heater - output: 3kW, freely adjustable Condenser - 1x tube with matt copper surface - 1x tube with a polished gold-plated surface Water jet pump - flow rate: 4...12L/min - pressure: 16mbar Safety valve: 2200mbar absolute Measuring ranges - pressure: 0...10bar abs. - flow rate: 0,2...6L/min - temperature: 4x 0...100°C, 3x 0...200°C 230V, 50Hz, 1 phase 230V, 60Hz, 1 phase 230V, 60Hz, 3 phases UL/CSA optional LxWxH: 1000x550x790mm Weight: approx. 85kg