Comparison of 1D and 3D heat and mass transfer models of a counter flow dew point evaporative cooling system: Numerical and experimental study

•A counter flow dew point evaporative cooling system is developed and investigated.•1D and 3D models of the heat and mass transfer in the cooling system are developed.•On average, the 1D model temperature predictions are 1.86% lower than the 3D model.•The 3D and 1D models predict experimental result...

Full description

Saved in:
Bibliographic Details
Published in:International journal of refrigeration Vol. 99; pp. 114 - 125
Main Authors: Pakari, Ali, Ghani, Saud
Format: Journal Article
Language:English
Published: Paris Elsevier Ltd 01.03.2019
Elsevier Science Ltd
Subjects:
3-D technology
Air temperature
CFD
Computing time
Cooling
Cooling systems
Dew point
Evaporative cooling
Heat exchangers
Heat transfer
Mass transfer
Mathematical models
Modélisation tridimensionnelle
Modélisation unidimensionnelle
One dimensional models
One-dimensional model
Parametric study
Refroidissement sous la température de bulbe humide
Refroidissement évaporatif régénératif
Regenerative evaporative cooling
Simulation
Sub wet-bulb evaporative cooling
Three dimensional models
Three-dimensional model
Étude paramétrique
CFD
Modélisation unidimensionnelle
Modélisation tridimensionnelle
Parametric study
Refroidissement sous la température de bulbe humide
Three-dimensional model
Refroidissement évaporatif régénératif
Sub wet-bulb evaporative cooling
Étude paramétrique
Regenerative evaporative cooling
One-dimensional model
ISSN:0140-7007, 1879-2081
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:•A counter flow dew point evaporative cooling system is developed and investigated.•1D and 3D models of the heat and mass transfer in the cooling system are developed.•On average, the 1D model temperature predictions are 1.86% lower than the 3D model.•The 3D and 1D models predict experimental results within 8.5% and 10%, respectively.•The cooling system can reach wet-bulb effectiveness values as high as 125%. In this study, the performance of a counter flow dew point evaporative cooling system has been examined, numerically and experimentally. A one-dimensional (1D) model of the heat and mass transfer in the cooling system is presented. In order to assess the 1D model, a detailed three-dimensional (3D) model is developed. Experimental results showed that the wet-bulb effectiveness of the cooling system could reach values as high as 125%. The predicted variations of air temperature along the channels of the cooling system by both models are in fair agreement. On average, the 1D model predicts lower outlet temperatures by about 1.86% relative to the 3D model. While the computational time of the 3D model is about three orders of magnitude higher than the 1D model. The predicted outlet temperature of the cooling system by the 1D and 3D models match the experimental results within 10% and 8.5%, respectively.
Bibliography:ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
content type line 14
ISSN:0140-7007
1879-2081
DOI:10.1016/j.ijrefrig.2019.01.013