Experimental and Theoretical Investigation of Heat Transfer and Pressure Drop in a Plate-Type Evaporator

Paper in proceeding, 2002

The purpose of the work reported here was to determine heat transfer and pressure drop in a plate-type evaporator both experimentally and theoretically. An experimental fa-cility was built to provide the means for detailed measure-ments at different conditions. Subsequently, a calculation method was developed to simultaneously calculate heat transfer and pressure drop in a variable number of steps along the evaporator. Results from measurements and calcu-lations are compared and discussed. In the investigated range the calculation method overestimates heat transfer by between 1-8% and underestimates pressure drop by between 7% and, at very high outlet vapour fractions, 30%.