Evaporative Air Coolers Optimization for Energy Consumption Reduction and Energy Efficiency Ratio Increment

Significant quota of Municipal Electrical Energy
consumption is related to Decentralized Air Conditioning which is
mostly provided by evaporative coolers. So the aim is to optimize
design of air conditioners to increase their efficiencies. To achieve
this goal, results of practical standardized tests for 40 evaporative
coolers in different types collected and simultaneously results for
same coolers based on one of EER (Energy Efficiency Ratio)
modeling styles are figured out. By comparing experimental results
of different coolers standardized tests with modeling results,
preciseness of used model is assessed and after comparing gained
preciseness with international standards based on EER for cooling
capacity, aeration, and also electrical energy consumption, energy
label from A (most effective) to G (less effective) is classified; finally
needed methods to optimize energy consumption and coolers’
classification are provided.





References:
[1] Power Researches Center, Household Electric Statistical Analysis
Report. Tehran: Energy Division, 1996.
[2] Evaporative coolers test methods and specifications. Iran National
Standards, no. 2436.
[3] Energy Affairs Adjutancy, Energy Balance Sheet. Tehran: Power
Ministry, 1994.
[4] S. L. Dixon, Fluid Mechanics and Thermodynamics of Turbomachinery,
Butterworth- Heinemann, MA: USA, 2010.
[5] “Low energy cooling, design tools for evaporative cooling, algorithms
for direct and indirect evaporative coolers,” IEA, Annex.28.
[6] Sonntag, R. Edwin, V. Wylen, G. John, Fundamentals of
Thermodynamics, 6th Edition, John Wiley & Sons, NJ: USA, 2003.
[7] Handbook of Evaporative Air Conditioning, Chapman & Hall
Publication, 2nd Edition, United Kingdom, 1974.