Indexed by:会议论文

Date of Publication:2012-07-08

Included Journals:EI、CPCI-S、SCIE、Scopus

Volume:2

Page Number:865-871

Key Words:Falling film evaporation; Desalination; Heat transfer coefficient

Abstract:The horizontal-tube falling film evaporation is a widely adopted technique in multiple-effect distillation (MED) desalination plant due to the higher heat transfer coefficient under quite small temperature differences. In the present study, an experimental platform for horizontal-tube falling film evaporation was set up to measure its heat transfer characteristics. Results indicate that heat transfer coefficient ( h) for both fresh water and seawater are almost independent with heat flux. The h increases firstly and then decreases with growth of Re. Along the tube circumference, the h increases after decreasing. In addition, the distribution of h for fresh water and seawater at the different evaporation temperatures and Reynolds number (Re) are also provided.