The evaporator is one of the common heat exchangers

which is widely used in chemical industry and food industry etc. The traditional evaporator with metal tubes is extremely limited in utilization for some reasons that the metal tubes are apt to be corroded by acid or alkali and the serious surface scaling. These problems could be well settled by using excellent performance polymer hollow fibers and good application foreground could be in foresight. In this study

the self-made polymer hollow fibers were used to manipulate the non-metal evaporator and the related evaporation experiments were carried out. The results showed that the performance of the hollow fiber evaporator relied on the thermal conditions of the feed solution. The heat transfer coefficient

the water production and the heat efficiency were better when feed with boiling solution than with low temperature solutions. The heat transfer resistances of fiber walls and the shell side were the main heat transfer resistance. The percentage of the heat transfer resistance with fiber walls can be more than 66% when feed with boiling solution. However

the percentage of heat transfer resistance in the lumen side was as low as 15.3%

and can be lower than 5% when the solution velocity increased. The heat transfer coefficient

the heat efficiency and the water production decreased dramatically when the feed temperature became lower. The results in this study can serve data support for the design and operating parameters optimization of the polymer hollow fiber evaporators

and can promote the further researches and applications of polymer hollow fiber evaporators.