Numerical model of sprayed air cooled condenser coupled to refrigerating system

Because of technological, economic and environmental constraints, many refrigeration and air conditioning units are equipped with a simple air cooled condenser. Spraying the condenser seems to be an original solution to improve the energetic performances of such systems. To characterise this energet...

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Bibliographic Details
Published inEnergy conversion and management Vol. 48; no. 7; pp. 1943 - 1951
Main Authors Youbi-Idrissi, M., Macchi-Tejeda, H., Fournaison, L., Guilpart, J.
Format Journal Article
LanguageEnglish
Published Oxford Elsevier Ltd 01.07.2007
Elsevier
Subjects
Applied sciences
Condenser
Energy
Energy. Thermal use of fuels
Environmental Sciences
Exact sciences and technology
Refrigerating engineering
Refrigerating engineering. Cryogenics. Food conservation
Refrigerating system
Spraying
Techniques. Materials
Wet air
Model
Wet air
Refrigerating system
Condenser
Spraying
Steam condenser
Constraint
Case study
Air cooling
Numerical analysis
Mathematical model
Performance
Refrigeration
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Summary:Because of technological, economic and environmental constraints, many refrigeration and air conditioning units are equipped with a simple air cooled condenser. Spraying the condenser seems to be an original solution to improve the energetic performances of such systems. To characterise this energetic benefit, a semi-local mathematical model was developed and applied to a refrigerating machine with and without spraying its air cooled condenser. It is found that, compared to a dry air cooled condenser, both the calorific capacity and machine COP increase by 13% and 55%, respectively. Furthermore, the model shows that a spray flow rate threshold occurs. It should not be exceeded to assure an effective and rational spray use.
ISSN:0196-8904
1879-2227
DOI:10.1016/j.enconman.2007.01.025