Numerical Simulation of the Liquid Flowing and Evaporation outside the Tube of the Evaporative Air Cooler

Hong Jiao Liu; Liang Cai Chen; Min Min

doi:10.4028/www.scientific.net/AMR.1008-1009.944

Paper Titles

Study on Flow Patterns and Separation Performance of Liquid-Gas Separator Units
p.919

Characteristic Analysis of the Influence of Flow Rate Distribution in Each Flat Tube of Parallel Flow Heat Exchanger to Heat Transfer
p.927

Comparison and Selection of Different Types of Boiler Soot-Blowers
p.934

The Parameters Analysis of Lead Bismuth-Heat Transfer Device in the Water Side
p.938

Numerical Simulation of the Liquid Flowing and Evaporation outside the Tube of the Evaporative Air Cooler
p.944

Effect of Turbocharged Diesel Engine Operating Conditions on Intake Premixed Methanol Quantity and Performance
p.951

Research on Simulation of LNG Vaporization System on LNG Powered Ships
p.956

Simulation Model of Gas-Cooler of Flue Gas Compressor in a 300 MW Oxy-Fuel Pulverized Coal Fired Boiler
p.960

The Static Strength Analysis on Two Certain Types of Cylinder Blocks of the Diesel Engine
p.965

HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 1008-1009Numerical Simulation of the Liquid Flowing and...

Numerical Simulation of the Liquid Flowing and Evaporation outside the Tube of the Evaporative Air Cooler

Abstract:

The flow regime and water evaporation outside horizontal tube are the important factors reflecting the heat transfer. In this paper, under different wind speed, the water film flowing and air moisture are studied for some spray density and different diameter. The results shows that there is a wind threshold with air velocity increased, the water film thickness decrease along the annular angles and then increase, and reaches the minimum at about 120 °, air moisture content decreases first and remains unchanged after a certain distance from the tube wall, the greater the wind speed , the thicker the water film, the faster water evaporation, the more the amount of water vapour taken away by air velocity increased, air moisture content decreases on the same position.

You might also be interested in these eBooks

View Preview

Info:

Periodical:

Advanced Materials Research (Volumes 1008-1009)

Pages:

944-948

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.1008-1009.944

Citation:

Cite this paper

Online since:

August 2014

Authors:

Hong Jiao Liu*, Liang Cai Chen, Min Min

Keywords:

Evaporative Air Cooler, Moisture Content, Water Film, Water-Wind Current, Wind Threshold

Export:

RIS, BibTeX

Price:

Permissions CCC:

Request Permissions

Permissions PLS:

Request Permissions

Сopyright:

Citation:

* - Corresponding Author

References

[1] Bilal A. Qur eshi, Syed M. Zubair. A comprehensive design and rating study of evaporative coolers and condensers. Part I: performance evaluation[J]. International Journal of Refrigeration. 2006, 29(4): 645-658.

DOI: 10.1016/j.ijrefrig.2005.09.014

Google Scholar

[2] WANG Xiao-Fei, HE Mao-Gang, ZHANG Ying. Numerical simulation of the liquid flowing outside the tube of the horizontal-tube falling film evaporator. Journal of Engineering Thermophysics, 2008, 8: (1347-1350).

DOI: 10.4028/www.scientific.net/amr.614-615.296

Google Scholar

[3] HE Mao-Gang, WANG Xiao-Fei, ZHANG Ying, FEI Ji-you. Study of flow regine and numerical simulation of film thickness on horizontal-tube falling film evaporator. Journal of Thermal Science and Technology. 2007, 12: (319-324).

Google Scholar

[4] Hirt C W, Nichols B D. Volume of Fluid (VOF) Method for the Dynamics of Free Boundaries. J. Comp. Phys, 1981, 39: 201-225.

DOI: 10.1016/0021-9991(81)90145-5

Google Scholar

[5] Y.L. Tsay, T.F. Lin. Evaporation of a heated falling liquid film into a laminar gas stream[J]. Experomental Thermal Fluid Science, 1995, (11): 61-71.

DOI: 10.1016/0894-1777(94)00112-l

Google Scholar

[6] Guo Chang-qing, ZHU Dong- sheng, TANG Xin-yi. Simplified calculation of heat and mass transfer in plate evaporative condenser. Journal of Shanxi University of Science &Technology. 2008 12 (45-50).

Google Scholar