Performance analysis of an evaporation process of plate heat exchangers installed in a Kalina power plant

In this paper the data logs from the evaporation process of the geothermal power plant are analyzed in order to review the evaporator's performance. Data had been gathered for a period of 5 years and three key performance parameters were defined: pressure drop, vapor fraction and heat transmission capacity. The main parameters that influence the performance are the temperatures, pressures and flow rates. It turned out, that the NH3 mass fraction plays only a minor role within the evaporation process.