Experimental Study on the Liquid Distributor of Horizontal Tube Falling Film Evaporator

2012 ◽  
Vol 550-553 ◽  
pp. 2897-2902
Author(s):  
Bai Song Hu ◽  
Fan Zhang ◽  
Xin Liang Wang ◽  
Hui Peng Sun ◽  
Xiao Ping Shi
Keyword(s):  
Experimental Study ◽  
Horizontal Tube ◽  
Falling Film ◽  
Liquid Distribution ◽  
Film Evaporation ◽  
Film Evaporator ◽  
Guide Plate ◽  
Liquid Flux ◽  
Falling Film Evaporation ◽  
Liquid Distributor

A calandria liquid distributor device was designed for horizontal falling film evaporation. The guide plate was introduced in this, which is easy to manufacture and can effectively reduce splash phenomenon. This paper studies the liquid distribution from the relation between distributive unwell-distributed coefficient and liquid flux of distributor tube and distributor hole. The result showed that the distributive unwell-distributed coefficient of in liquid distributor was decreased along with accretion of liquid flux, as apposed to homogeneous perforated. The unwell-distributed hole coefficient of distributor tube No.0 was increased along with accretion of flux, as apposed to distributor tube No.1 and distributor tube No.2.

Numerical Simulation of the Liquid Flowing and Heat-Transfer outside the Tube of the Horizontal-Tube Falling Film Evaporator

2012 ◽  
Vol 614-615 ◽  
pp. 296-300 ◽  
Author(s):  
Wei Kang Hu ◽  
Li Yang ◽  
Lei Hong Guo
Keyword(s):  
Heat Transfer ◽  
Horizontal Tube ◽  
Water Desalination ◽  
Falling Film ◽  
Transfer Enhancement ◽  
Film Evaporation ◽  
Film Evaporator ◽  
Spray Density ◽  
Performance Of Heat Transfer ◽  
Falling Film Evaporation

This paper mainly studies the falling film evaporator in the field of water desalination. Using the method of fluent simulates the process of the liquid flowing and heat-transfer on the horizontal-tube falling film evaporation. The author analyses the distribution of the liquid film, and obtain the rule that spray density, evaporation temperature, temperature difference and pipe diameter affect the performance of heat-transfer in a certain range. So the paper plays a guiding role in heat transfer enhancement in the falling film evaporator.

Experimental Investigation on the Liquid Distributor Performance for the Falling Film Evaporation Process

2014 ◽  
Vol 1015 ◽  
pp. 696-699
Author(s):  
Dong Dong Feng ◽  
Feng Ming Zhang ◽  
Wei Yang ◽  
Yu Xu ◽  
Xiao Bin Pei ◽  
...  
Keyword(s):  
High Flow ◽  
Hole Diameter ◽  
Falling Film ◽  
Evaporation Process ◽  
Liquid Distribution ◽  
Film Evaporation ◽  
Liquid Height ◽  
Falling Film Evaporation ◽  
Liquid Distributor ◽  
The Relationship

In this paper, the liquid distributor performance for the falling film evaporation process was tested, and the relationship between the liquid height and flow rate were studied in the experiment. The results showed that the liquid height of liquid distributor is proportional to flow, liquid distributing hole diameter and flow, but inversely proportional to liquid distribution aperture. Overflow may be present at a high flow.

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